FEATURES. NXP TDA3674AT

Philips Semiconductors

Low dropout voltage/quiescent current 5 V voltage regulator with enable

Preliminary specification

TDA3674

FEATURES

•

Fixed 5 V, 100 mA regulator with enable function

•

Supply voltage range up to 45 V

•

Very low quiescent current of 15

µ

A (typical value)

•

Very low dropout voltage

•

High ripple rejection

•

Very high stability:

– Electrolytic capacitors: Equivalent Series Resistance

(ESR) < 22

Ω

at worst-case condition

– Other capacitors: 100 nF at 200

µ

A

≤

I

REG

•

Pin compatible family TDA3672 to TDA3676

≤

100 mA.

•

Protections:

– Reverse polarity safe (down to

−

25 V without high reverse current)

– Negative transient of 50 V (R

– ESD protection on all pins

S

= 10

(supply line may be short-circuited)

Ω

, t < 100 ms)

– Able to withstand voltages up to 18 V at the output

– DC short-circuit safe to ground and V

P

of the regulator output

– Temperature protection (at T j

> 150

°

C).

GENERAL DESCRIPTION

The TDA3674 is a fixed 5 V voltage regulator with very low dropout voltage and quiescent current, which operates over a wide supply voltage range.

QUICK REFERENCE DATA

SYMBOL

Supply

V

P

I q

PARAMETER supply voltage quiescent supply current

CONDITIONS regulator on

V

V

P

= 14.4 V; I

REG

I(EN)

= 5 V

= 0 mA;

3

−

MIN.

TYP.

14.4

15

MAX.

45

30

V

µ

UNIT

A

Voltage regulator

V

REG regulator output voltage

V

REG(drop) dropout voltage

8 V

≤

V

P

≤

22 V; I

REG

= 0.5 mA

6 V

≤

V

0.5 mA

P

≤

≤

45 V; I

REG

I

REG

= 0.5 mA

≤

100 mA;

V

P

= 14.4 V

V

T

P

= 4.5 V; I

REG amb

≤

85

°

C

= 50 mA;

4.8

5.0

4.75

5.0

4.75

5.0

−

0.18

5.2

5.25

V

5.25

0.3

V

V

V

ORDERING INFORMATION

TYPE

NUMBER

TDA3674AT

NAME

SO8

PACKAGE

DESCRIPTION plastic small outline package; 8 leads; body width 3.9 mm

VERSION

SOT96-1

2001 Jan 24 2