19-1301; Rev 2; 1/01

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

__________________General Description

The MAX8877/MAX8878 low-noise, low-dropout linear regulators operate from a 2.5V to 6.5V input and deliver up to 150mA. These devices are pin-compatible with the industry-standard '2982 and offer an improved dropout voltage. Typical output noise is 30µV

RMS

, and typical dropout is only 165mV at 150mA. The output voltage is preset to voltages in the range of 1.5V to

5.0V, in 100mV increments.

Designed with an internal P-channel MOSFET pass transistor, the MAX8877/MAX8878 maintain a low

100µA supply current, independent of the load current and dropout voltage. Other features include a 10nA logic-controlled shutdown mode, short-circuit and thermal-shutdown protection, and reverse battery protection. The MAX8878 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown. Both devices come in regular and thin 5-pin SOT23 packages.

________________________Applications

Cellular Telephones

Cordless Telephones

PCS Telephones

PCMCIA Cards

Modems

Hand-Held Instruments

Palmtop Computers

Electronic Planners

____________________________Features

♦ Pin-Compatible with the Industry-Standard '2982

♦ Low Output Noise: 30µV

RMS

♦ Low 55mV Dropout at 50mA Output

(165mV at 150mA output)

♦ Low 85µA No-Load Supply Current

♦ Low 100µA Operating Supply Current

(even in dropout)

♦ Thermal-Overload and Short-Circuit Protection

♦ Reverse Battery Protection

♦ Output Current Limit

♦ Preset Output Voltages (±1.4% Accuracy)

♦ 10nA Logic-Controlled Shutdown

_________________Ordering Information

PART**

TEMP.

RANGE

PIN-PACKAGE

MAX8877C/Dxy

MAX8877EUKxy-T

MAX8877EZKxy-T

MAX8878C/Dxy

MAX8878EUKxy-T

MAX8878EZKxy-T

0

°C to +70°C Dice*

-40

°C to +85°C 5 SOT23-5 Regular

-40

°C to +85°C 5 SOT23-5 Thin

0

°C to +70°C Dice*

-40

°C to +85°C 5 SOT23-5 Regular

-40

°C to +85°C 5 SOT23-5 Thin

*Dice are tested at T

A

= +25°C only.

**xy is the output voltage code (see Expanded Ordering

Information table at end of data sheet).

____________Typical Operating Circuit _____________________Pin Configuration

TOP VIEW

ON

INPUT

2.5V TO 6.5V

IN

C

IN

1

µF

OFF

SHDN

MAX8877

MAX8878

C

BP

0.01

µF

BP

GND

OUT

C

OUT

3.3

µF

OUTPUT

PRESET

1.5V TO 5.0V

150mA

IN

1

GND 2

MAX8877

MAX8878

5 OUT

SHDN 3 4 BP

SOT23-5

REGULAR AND THIN

________________________________________________________________ Maxim Integrated Products 1

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

ABSOLUTE MAXIMUM RATINGS

IN to GND ....................................................................-7V to +7V

Output Short-Circuit Duration ............................................Infinite

SHDN to GND..............................................................-7V to +7V

SHDN to IN ...............................................................-7V to +0.3V

OUT, BP to GND ..........................................-0.3V to (V

IN

+ 0.3V)

Continuous Power Dissipation (T

A

= +70°C)

SOT23-5 Regular (derate 7.1mW/°C above +70°C) ....571mW

SOT23-5 Thin (derate 9.1mW/°C above +70°C) ..........727mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

θ

θ

JB

JB

(Regular)..................................................................140°C/W

(Thin)........................................................................110°C/W

Storage Temperature.........................................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(V

IN

= V

OUT(NOMINAL)

+ 0.5V or 2.5V (whichever is greater), T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

=

+25°C.) (Note 1)

PARAMETER

Input Voltage

Output Voltage Accuracy

SYMBOL

V

IN

CONDITIONS

I

OUT

= 0.1mA, T

A

= +25°C, V

OUT

≥ 2.5V

I

OU T

V

= 0.1m A to 120m A, T

A

OUT

≥ 2.5V

= - 40° C to + 85°C ,

I

OUT

= 0.1mA, T

A

= +25°C, V

OUT

< 2.5V

I

OUT

= 0.1mA to 120mA, T

A

= -40°C to +85°C,

V

OUT

< 2.5V

MIN

2.5

-1.4

-3

-3

-3.5

TYP MAX UNITS

6.5

V

1.4

2

3

3.5

%

Maximum Output Current

Current Limit I

LIM

150

160 mA mA

Ground Pin Current

Dropout Voltage (Note 2)

Line Regulation

Load Regulation

Output Voltage Noise

I

Q

∆V

LNR

∆V

LDR e n

No load

I

OUT

= 150mA

I

OUT

= 1mA

I

OUT

= 50mA

I

OUT

= 150mA

V

IN

= 2.5V or (V

OUT

+ 0.1V) to 6.5V,

I

OUT

= 1mA

I

OUT

= 0.1mA to 120mA, C

OUT

= 1µF f = 10Hz to 100kHz,

C

BP

= 0.01µF

C

OUT

= 10µF

C

OUT

= 100µF

-0.15

390

85

100

1.1

55

165

0

0.01

30

20

180

120

0.15

0.04

µA mV

%/V

%/mA

µVRMS

SHUTDOWN

SHDN Input Threshold

SHDN Input Bias Current

Shutdown Supply Current

Shutdown Exit Delay

(Note 3)

Resistance Shutdown Discharge

V

IH

V

IL

V

IN

= 2.5V to 5.5V

V

IN

= 2.5V to 5.5V

I

I

SHDN

Q(SHDN)

V

SHDN

= V

IN

T

A

= +25°C

T

A

= +85°C

T

A

= +25°C

V

OUT

= 0V

T

A

= +85°C

C

BP

= 0.1µF

T

A

= +25°C

C

OUT

= 1µF, no load

T

A

= -40°C to +85°C

MAX8878 only

2.0

0.01

0.5

0.01

0.2

30

300

0.4

100

1

150

300

V

µA

µA

µs

Ω

2 _______________________________________________________________________________________

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

ELECTRICAL CHARACTERISTICS (continued)

(V

IN

= V

OUT(NOMINAL)

+ 0.5V or 2.5V (whichever is greater), T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

=

+25°C.) (Note 1)

PARAMETER

THERMAL PROTECTION

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

SYMBOL

T

SHDN

∆T

SHDN

CONDITIONS MIN TYP

155

15

MAX UNITS

Note 1: Limits are 100% production tested at T

A

= +25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control (SQC) Methods.

Note 2: The dropout voltage is defined as V

IN

- V

OUT

, when V

OUT is 100mV below the value of V

OUT for V

IN

= V

OUT

+ 0.5V. (Only applicable for V

OUT

= +2.5V to +5V.)

Note 3: Time needed for V

OUT to reach 95% of final value.

°C

°C

__________________________________________Typical Operating Characteristics

(V

IN

= V

OUT(NOMINAL)

+ 0.5V or 2.5V (whichever is greater), C

IN

= 1µF, C

OUT

= 1µF, C

BP

= 0.01µF, T

A

= +25°C, unless otherwise noted.)

OUTPUT VOLTAGE vs. LOAD CURRENT

(MAX887_EUK25)

OUTPUT VOLTAGE vs. LOAD CURRENT

(MAX887_EUK50)

GROUND PIN CURRENT vs. LOAD CURRENT

2.60

5.2

2.55

2.50

2.45

2.40

5.1

5.0

4.9

4.8

110

105

100

95

90

85

80

75

70

65

60

MAX887_EUK50

MAX887_EUK25

0 50 100

LOAD CURRENT (mA)

150 0 50 100

LOAD CURRENT (mA)

150

0 50 100

LOAD CURRENT (mA)

150

120

GROUND PIN CURRENT vs. INPUT VOLTAGE

(MAX887_EUK25)

I

LOAD

= 50mA

100

120

GROUND PIN CURRENT vs. INPUT VOLTAGE

(MAX887_EUK50)

I

LOAD

= 50mA

100

6

5

OUTPUT VOLTAGE vs. INPUT VOLTAGE

NO LOAD

MAX887_EUK50

80

80 4

NO LOAD

NO LOAD

60

60

3

40

20

0

0 1 2 3 4

INPUT VOLTAGE (V)

5 6

40

20

0

0 1 2 3 4

INPUT VOLTAGE (V)

5 6

2

1

0

0 1

MAX887_EUK25

2 3 4

INPUT VOLTAGE (V)

5 6

_______________________________________________________________________________________

3

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

Typical Operating Characteristics (continued)

(V

IN

= V

OUT(NOMINAL)

+ 0.5V or 2.5V (whichever is greater), C

IN

= 1µF, C

OUT

= 1µF, C

BP

= 0.01µF, T

A

= +25°C, unless otherwise noted.)

2.60

OUTPUT VOLTAGE vs. TEMPERATURE

(MAX887_EUK25)

I

LOAD

= 50mA

2.55

2.50

2.45

2.40

-40 -20 0 20 40

TEMPERATURE (°C)

60 80 100

DROPOUT VOLTAGE vs. LOAD CURRENT

(MAX887_EUK25)

250

200

150

T

A

= +85°C

T

A

= +25°C

T

A

= -40°C

100

50

0

0 20 40 60 80 100 120 140 160

LOAD CURRENT (mA)

OUTPUT NOISE SPECTRAL DENSITY vs. FREQUENCY

10

C

BP

= 0.01

µF

I

LOAD

= 10mA

1

0.1

0.01

0

C

OUT

= 1

µF

C

OUT

= 10

µF

1 10

FREQUENCY (kHz)

100 1000

5.2

OUTPUT VOLTAGE vs. TEMPERATURE

(MAX887_EUK50)

I

LOAD

= 50mA

5.1

5.0

4.9

4.8

-40 -20 0 20 40

TEMPERATURE (°C)

60 80 100

DROPOUT VOLTAGE vs. LOAD CURRENT

(MAX887_EUK50)

200

150

100

50

T

A

= +85°C

T

A

= +25°C

T

A

= -40°C

0

0 20 40 60 80 100 120 140 160

LOAD CURRENT (mA)

OUTPUT NOISE vs. BP CAPACITANCE

80

70

60

50

40

30

20

10

0

0.001

C

OUT

= 10

µF

I

LOAD

= 10mA f = 10Hz to 100kHz

MAX887_EUK50

MAX887_EUK30

MAX887_EUK25

0.01

BP CAPACITANCE (

µF)

0.1

GROUND PIN CURRENT vs. TEMPERATURE

200

180

160

140

120

100

80

60

40

20

0

-40 -20

MAX887_EUK50

0 20

I

LOAD

= 50mA

MAX887_EUK25

40 60 80 100

TEMPERATURE (°C)

POWER-SUPPLY REJECTION RATIO vs. FREQUENCY

70

60

50

40

30

20

C

C

OUT

OUT

10

0

0.01

I

LOAD

C

BP

= 50mA

= 0.1

µF

0.1

1 10

FREQUENCY (kHz)

100

= 10

µF

= 1

µF

1000

OUTPUT NOISE vs. LOAD CURRENT

60

50

40

MAX887_EUK50

MAX887_EUK30

30

20

MAX887_EUK25

10

0

1

C

C

OUT

BP

= 10

µF

= 0.01

µF f = 10Hz to 100kHz

10 100

LOAD CURRENT (mA)

1000

4 _______________________________________________________________________________________

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

Typical Operating Characteristics (continued)

(V

IN

= V

OUT(NOMINAL)

+ 0.5V or 2.5V (whichever is greater), C

IN

= 1µF, C

OUT

= 1µF, C

BP

= 0.01µF, T

A

= +25°C, unless otherwise noted.)

OUTPUT NOISE 10Hz TO 100kHz

REGION OF STABLE C

OUT

ESR vs. LOAD CURRENT

100

V

OUT

50

µV/div

10

C

OUT

= 10

µF

1

0.1

STABLE REGION

C

OUT

= 1

µF

4V

3V

1ms/div

MAX887_EUK25, C

OUT

= 10

µF, I

LOAD

= 10mA, C

BP

= 0.1

µF

LINE-TRANSIENT RESPONSE

MAX8877-18

V

IN

3.01V

3.00V

2.99V

0.01

0 100

LOAD CURRENT (mA)

150

LOAD-TRANSIENT RESPONSE

NEAR DROPOUT

MAX8877-20

LOAD-TRANSIENT RESPONSE

MAX8877-19

V

OUT

3.01V

3.00V

2.99V

V

OUT

3.001V

3.000V

2.999V

V

OUT

50mA

2V

0V

100

µs/div

MAX887_EUK30, I

LOAD

= 50mA

MAX887_EUK25

SHUTDOWN EXIT DELAY

MAX8877-21

C

BP

= 0.01

µF

2V

1V

C

BP

= 0.1

0V

5

µs/div

MAX887_EUK25, I

LOAD

= 50mA

µF

10

µs/div

MAX887_EUK30, V

IN

C

IN

= 10

µF, I

LOAD

= V

OUT

+ 0.5V,

= 0mA TO 50mA

MAX887_EUK50

SHUTDOWN EXIT DELAY

MAX8877-22

V

SHDN

2V

0V

V

OUT

C

BP

= 0.01

µF

4V

C

BP

= 0.1

µF

2V

0V

5

µs/div

MAX887_EUK50, I

LOAD

= 50mA

V

SHDN

V

OUT

I

LOAD

50mA

I

LOAD

2V

0V

5V

10

µs/div

MAX887_EUK30, V

IN

= V

OUT

+ 0.1V,

C

IN

= 10

µF, I

LOAD

= 0mA TO 50mA

ENTERING SHUTDOWN

MAX8877-23

V

SHDN

0V

500

µs/div

MAX8878, NO LOAD

V

OUT

_______________________________________________________________________________________

5

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

______________________________________________________________Pin Description

PIN

1

2

3

4

5

NAME

IN

GND

SHDN

BP

OUT

FUNCTION

Regulator Input. Supply voltage can range from 2.5V to 6.5V. Bypass with a 1

µF capacitor to GND

(see Capacitor Selection and Regulator Stability section).

Ground. This pin also functions as a heatsink. Solder to a large pad or the circuit-board ground plane to maximize power dissipation.

Active-Low Shutdown Input. A logic low reduces the supply current to 10nA. On the MAX8878, a logic low also causes the output voltage to discharge to GND. Connect to IN for normal operation.

Reference-Noise Bypass. Bypass with a low-leakage, 0.01

µF ceramic capacitor for reduced noise at the output.

Regulator Output. Sources up to 150mA. Bypass with a 1

µF (<0.2Ω typical ESR) capacitor to GND for V

OUT

≥ 2.5V and 3.3µF for V

OUT

< 2.5V.

_______________Detailed Description

The MAX8877/MAX8878 are low-noise, low-dropout, low-quiescent-current linear regulators designed primarily for battery-powered applications. The parts are available with preset output voltages ranging from 1.5V

to 5V, in 100mV increments. These devices can supply loads up to 150mA. As illustrated in Figure 1, the

MAX8877/MAX8878 consist of a 1.25V reference, error amplifier, P-channel pass transistor, and internal feedback voltage divider.

The 1.25V bandgap reference is connected to the error amplifier’s inverting input. The error amplifier compares this reference with the feedback voltage and amplifies the difference. If the feedback voltage is lower than the reference voltage, the pass-transistor gate is pulled lower, which allows more current to pass to the output and increases the output voltage. If the feedback voltage is too high, the pass-transistor gate is pulled up, allowing less current to pass to the output. The output voltage is fed back through an internal resistor voltage divider connected to the OUT pin.

An external bypass capacitor connected to the BP pin reduces noise at the output. Additional blocks include a current limiter, reverse battery protection, thermal sensor, and shutdown logic. The MAX8878 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown mode.

IN

SHDN

REVERSE

BATTERY

PROTECTION

SHUTDOWN

AND

POWER-ON

CONTROL

ERROR

AMP

MOS DRIVER

WITH I

LIMIT

MAX8877

MAX8878

*

N

THERMAL

SENSOR

1.25V

REF

GND

* AUTO-DISCHARGE, MAX8878 ONLY

Figure 1. Functional Diagram

6 _______________________________________________________________________________________

P

OUT

BP

Output Voltage

The MAX8877/MAX8878 are supplied with factory-set output voltages from 1.5V to 5.0V, in 100mV increments.

Except for the MAX887_EUK29 and the MAX887_EUK32

(which have an output voltage preset at 2.84V and

3.15V, respectively), the two-digit suffix allows the customer to choose the output voltage in 100mV increments.

For example, the MAX8877EUK33 has a preset output voltage of 3.3V (see Expanded Ordering Information).

Internal P-Channel Pass Transistor

The MAX8877/MAX8878 feature a 1.1

Ω typical

P-channel MOSFET pass transistor. This provides several advantages over similar designs using PNP pass transistors, including longer battery life. The P-channel

MOSFET requires no base drive, which reduces quiescent current considerably. PNP-based regulators waste considerable current in dropout when the pass transistor saturates. They also use high base-drive currents under large loads. The MAX8877/MAX8878 do not suffer from these problems and consume only 100µA of quiescent current whether in dropout, light-load, or heavy-load applications (see the Typical Operating Characteristics).

Current Limit

The MAX8877/MAX8878 include a current limiter, which monitors and controls the pass transistor’s gate voltage, limiting the output current to 390mA. For design purposes, consider the current limit to be 160mA minimum to 500mA maximum. The output can be shorted to ground for an indefinite amount of time without damaging the part.

Thermal-Overload Protection

Thermal-overload protection limits total power dissipation in the MAX8877/MAX8878. When the junction temperature exceeds T

J

= +155°C, the thermal sensor signals the shutdown logic, turning off the pass transistor and allowing the IC to cool. The thermal sensor will turn the pass transistor on again after the IC’s junction temperature cools by 15°C, resulting in a pulsed output during continuous thermal-overload conditions.

Thermal-overload protection is designed to protect the

MAX8877/MAX8878 in the event of fault conditions. For continual operation, do not exceed the absolute maximum junction-temperature rating of T

J

= +150°C.

Operating Region and Power Dissipation

The MAX8877/MAX8878’s maximum power dissipation depends on the thermal resistance of the case and circuit board, the temperature difference between the die junction and ambient air, and the rate of air flow. The power dissipation across the device is P = I

OUT

(V

IN

- V

OUT

).

The maximum power dissipation is:

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

P

MAX

= (T

J

- T

A

) / (

θ

JB

+

θ

BA

) where T

J

- T

A is the temperature difference between the MAX8877/MAX8878 die junction and the surrounding air,

θ

JB

(or

θ

JC

) is the thermal resistance of the package, and

θ

BA is the thermal resistance through the printed circuit board, copper traces, and other materials to the surrounding air.

The GND pin of the MAX8877/MAX8878 performs the dual function of providing an electrical connection to ground and channeling heat away. Connect the GND pin to ground using a large pad or ground plane.

Reverse Battery Protection

The MAX8877/MAX8878 have a unique protection scheme that limits the reverse supply current to 1mA when either V

IN or V

SHDN falls below ground. Their circuitry monitors the polarity of these two pins and disconnects the internal circuitry and parasitic diodes when the battery is reversed. This feature prevents device damage.

Noise Reduction

An external 0.01µF bypass capacitor at BP, in conjunction with an internal 200k

Ω resistor, creates a 80Hz lowpass filter for noise reduction. The MAX8877/MAX8878 exhibit 30µV

RMS of output voltage noise with C

BP

=

0.01µF and C

OUT

= 10µF. This is negligible in most applications. Start-up time is minimized by a power-on circuit that pre-charges the bypass capacitor. The

Typical Operating Characteristics section shows graphs of Noise vs. BP Capacitance, Noise vs. Load

Current, and Output Noise Spectral Density.

____________Applications Information

Capacitor Selection and

Regulator Stability

Normally, use a 1µF capacitor on the MAX8877/

MAX8878’s input and a 1µF to 10µF capacitor on the output. Larger input capacitor values and lower ESRs provide better supply-noise rejection and line-transient response. Reduce noise and improve load-transient response, stability, and power-supply rejection by using large output capacitors. For stable operation over the full temperature range and with load currents up to 150mA, a

1µF (min) ceramic capacitor is recommended for V

OUT

≥

2.5V and 3.3µF and for V

OUT

< 2.5V.

Note that some ceramic dielectrics exhibit large capacitance and ESR variation with temperature. With dielectrics such as Z5U and Y5V, it may be necessary to increase the capacitance by a factor of 2 or more to ensure stability at temperatures below -10°C. With X7R or

X5R dielectrics, 1µF should be sufficient at all operating temperatures for V

OUT

≥ 2.5V. A graph of the Region of

_______________________________________________________________________________________ 7

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

Stable C

OUT

ESR vs. Load Current is shown in the

Typical Operating Characteristics.

Use a 0.01µF bypass capacitor at BP for low output voltage noise. Increasing the capacitance will slightly decrease the output noise, but increase the start-up time.

Values above 0.1µF provide no performance advantage and are not recommended (see Shutdown Exit Delay graphs in the Typical Operating Characteristics).

PSRR and Operation from

Sources Other than Batteries

The MAX8877/MAX8878 are designed to deliver low dropout voltages and low quiescent currents in batterypowered systems. Power-supply rejection is 63dB at low frequencies and rolls off above 10kHz. See the

Power-Supply Rejection Ratio Frequency graph in the

Typical Operating Characteristics.

When operating from sources other than batteries, improved supply-noise rejection and transient response can be achieved by increasing the values of the input and output bypass capacitors, and through passive filtering techniques. The Typical Operating Charac-

teristics show the MAX8877/MAX8878’s line- and loadtransient responses.

Load-Transient Considerations

The MAX8877/MAX8878 load-transient response graphs (see Typical Operating Characteristics) show two components of the output response: a DC shift from the output impedance due to the load current change, and the transient response. Typical transient for a step change in the load current from 0mA to 50mA is 12mV. Increasing the output capacitor’s value and decreasing the ESR attenuates the overshoot.

Input-Output (Dropout) Voltage

For output voltage greater than the minimum input voltage (2.5V), the regulator’s minimum input-output voltage differential (or dropout voltage) determines the lowest usable supply voltage. In battery-powered systems, this will determine the useful end-of-life battery voltage. Because the MAX8877/MAX8878 use a Pchannel MOSFET pass transistor, their dropout voltage is a function of drain-to-source on-resistance (R

DS(ON)

) multiplied by the load current (see Typical Operating

Characteristics).

___________________Chip Information

TRANSISTOR COUNT: 247

SUBSTRATE CONNECTED TO GND

_ Expanded Ordering Information

OUTPUT VOLTAGE (xy) CODE

REGULAR SOT23 THIN SOT23

MAX887_EUK15-T

MAX887_EUK18-T

MAX887_EUK25-T

MAX887_EUK28-T

MAX887_EUK29-T

MAX887_EUK30-T

MAX887_EUK32-T

MAX887_EUK33-T

MAX887_EUK36-T

MAX887_EUK50-T

Other xy***

MAX887_EZK15-T

MAX887_EZK18-T

MAX887_EZK25-T

MAX887_EZK28-T

MAX887_EZK29-T

MAX887_EZK30-T

MAX887_EZK32-T

MAX887_EZK33-T

MAX887_EZK36-T

MAX887_EZK50-T

PRESET

OUTPUT

VOLTAGE (V)

1.50

1.80

2.50

2.80

2.84

3.00

3.15

3.30

3.60

5.00

x.y0

MAX8877

REGULAR

ADRG

ADQT

ACBM

ACBN

ACBO

ACBP

ACBQ

ACBR

ACDB

ACBS

—

SOT TOP MARK

MAX8877

THIN

AAAA

AAAB

AAAC

AAAD

ADPM

AAAE

AAAF

AAAG

AAAH

AAAI

—

MAX8878

REGULAR

ADQV

ADRH

ACBT

ACBU

ACBV

ACBW

ACBX

ACBY

ACDC

ACBZ

—

MAX8878

THIN

AAAJ

AAAK

AAAL

AAAM

ADPO

AAAN

AAAO

AAAP

AAAQ

AAAR

—

***Other xy between 1.5V and 5.0V are available in 100mV increments. Contact factory for other versions. Minimum order quantity is 25,000 units.

8 _______________________________________________________________________________________

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

Package Information

_______________________________________________________________________________________ 9

Low-Noise, Low-Dropout, 150mA Linear

Regulators with '2982 Pinout

Package Information (continued)

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.