36V, 3A, 250KHz Synchronous Step
AN6556
40V, 3.5A, 200kHz Asynchronous Step-Down Converter
General Description
Features
The AN6556 is a monolithic step-down switch

Wide Input Voltage from 7.5V to 40V
mode converter with a built-in high-side power

Up to 3.5A Output Current
MOSFET. It achieves 3.5A continuous output

Adjustable Output Voltage up to 12V
current over a wide input supply range with

High Efficiency Up to 93%
excellent load and line regulation. Current mode

Dual Outputs with Independent Over Current
operation provides fast transient response and
Protection (OCP)
eases loop stabilization. The converter can be

7.5% Accurate OCP
configured as single output or dual outputs with

Internal Soft-Start
independent over current protection (OCP). Fault

Auto Recovery into Full Load after Faults
condition

Output Cord Voltage Drop Compensation
current limiting and thermal shutdown.

Programmable Over Current Setting
The AN6556 is available in an SOP8-EP package,

Over-Temperature Protection
provides a very compact system solution and

Thermal Enhanced SOP-8 Package
good thermal conductance.

RoHS Compliant
Pin Configuration
Application
protection
includes
cycle-by-cycle
(Top View)
CS1
SW
1
8
2
CS2
7
VIN
6
FB
5
COMP

Dual-Port Car Charger

DVD, LCD Displays

Automotive Industry
GND
BS
3
9
GND
4
Ordering Information
Part Number Package
AN6556-ASB
SOP8-EP
Shipment
Tape & Reel / 2500
*A: Output Voltage Adjustable
*SB: SOP8-EP
Nov-2013
Rev. 0.25
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1
www.AnaNaviTek.com
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