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DA9313

High Efficiency Dual Cell Switched Capacitor Divider

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DA9313

High Efficiency Dual Cell Switched Capacitor Divider

General Description

DA9313 is a high-voltage power converter with a maximum output current of 10 A, suitable for

applications supplied from a dual (2S) Li-ion or Li-polymer stacked cell battery pack, or any input

voltage between 5 V and 10.5 V. The converter operates with efficiency during conversion of up to

98 %. Master/slave operation is offered, where a pair of devices can combine to double the peak

output current to 20 A.

Low profile external components and a minimum PCB footprint allow small circuit implementation in

compact applications. The pass devices are fully integrated therefore no external FETs are needed.

DA9313 utilizes a programmable soft start to limit the inrush current from the input node and secure

a slope controlled activation of the rails. It also implements integrated over-temperature and over-

current protection for increased system reliability without the need for external sensing components.

Enable, low power mode entry and exit, and power good signals are available at configurable ports

flexibly supporting different applications and power-up or power-down scenarios.

Key Features

■ 2S to 1S power voltage converter

■ VOUT = ½ VIN

■ 5 V to 10.5 V input voltage (2S Li-ion stacked ■ High and flat efficiency, up to 98 %

battery pack)

■ 10 A total output current (standalone)

■ 20 A total output current (master/slave)

■ Typical 55 μA quiescent current (standalone)

□ Typical 70 μA total quiescent current in

master/slave configuration

■ 1.0 mm max external components height

■ Package 43 WLCSP (RouteEasy™ equivalent

■ Integrated power switches

to 0.65 mm pitch)

■ I2C compatible interface

Applications

■ Ultrabooks™

■ Notebook computers

■ Chromebooks™

■ Tablets

■ Smartphone direct charging

■ DSLR and mirrorless cameras

■ Camcorders

■ Power banks

■ 2S battery applications

Datasheet

CFR0011-120-00

Revision 3.0

1 of 54

07-Apr-2017

© 2017 Dialog Semiconductor

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