LP6470-00

Aug.-2017

www.lowpowersemi.com

Page 1 of 10

Preliminary Datasheet

LP6470

600KHz, 16V/2A Synchronous Step-down Converter

General Description

The LP6470 contains an independent 600KHz

constant frequency, current mode, PWM step-down

converters. The converter integrates a main switch

and a synchronous rectifier for high efficiency

without an external Schottky diode. The LP6470 is

ideal for powering portable equipment that runs

from a 2cell Lithium-Ion (Li+) battery. The converter

can supply 2000mA of load current from a 3.5V to

16V input voltage. The output voltage can be

regulated as low as 0.8V.

The LP6470 is available in a SOT23-6 package and

is rated over the -40℃ to 85℃ temperature range.

Order Information

LP6470 □ □ □

F: Pb-Free

Package Type

B6: SOT23-6

Applications



Portable Media Players



Cellular and Smart mobile phone



PDA/DSC



GPS Applications

Features



Input Voltage Range: 3.5V to 16V



Output Voltage Range: 0.8V to 12V



2000mA Load Current on Channel



Up to 96% Efficiency



<6uA Shutdown Current



600KHz Switching Frequency



Short Circuit Protection



Thermal Fault Protection



SOT23-6 Package



RoHS Compliant and 100% Lead (Pb)-Free

Typical Application Circuit

The C1 must be as close as possible to the chip, and the

capacitor loop is the same.

Marking Information

Device

Marking

Package

Shipping

LP6470

LPS

A8YWX

SOT23-6

3K/REEL

Y: Year code. W: Week code. X: Batch numbers.

22uFx 2

C1

10nF

C2

22uF

2.2uH

3V3_2A

100K

32K

R2

LP6470B6F

5

2

4

3

6

1

EN

SW

FB

VIN

BS

GND

VOUT=(R1/R2+1)VFB

R1

500K

VIN(3.5-16V)