1 Features

Synchronous switching charger and synchronous

boost converter

1.2A synchronous switching charger, 1.0A

synchronous boost converter

boost converter efficiency up to 91%

Switching charger efficiency up to 93%

Integrated power-path management,

charging batteries and charging cellphones

at the same time

Charger

Adaptive charging current control, excellent

adapter compatibility

Charger voltage accuracy ±0.5%

Support 4.20V,4.30V,4.35V,4.40V batteries

Fully featured

Integrated Key ON/OFF

Integrated flashlight controller

Integrated cellphone plug-in and plug-out

detector

Supports 4/3/2/1 LEDs indicator

Low power

Smart load detector, switching to standby

mode automatically

<100 µA standby current

Ultra simplified BOM

Integrated power FET, charging/boosting

with a single inductor

Multiple protections, high reliability

Output over-current, over-voltage,

short-circuit protection

Input over-voltage, over-current, battery

over-charge, over-drain, over-current

protection

Thermal regulation and thermal shutdown,

ESD 4KV

2 Applications

Power bank, Portable Charger

Mobile Phones, Smart Phones, Handheld Devices,

3 Description

IP5305 is a highly-integrated multi-function

power management SoC. It integrates a boost

converter, a Li battery charger management system

and a battery state of charge indicate controller. It

provides a turn-key solution for power bank and

portable charger applications.

IP5305’s high integration and rich features make

the minimized component number in application. It

can effectively downsize the application and lower the

BOM cost.

IP5305 only needs a single inductor to realize

step-down and step-up.

IP5305’s synchronous step-up converter provides

1.0A output current. Its efficiency is up to 96%. It can

switch to standby mode at empty load automatically

IP5305’s synchronous switching charger provides

1.2A charging current. Its efficiency is up to 93%. It

regulates the charging current by IC temperature and

input voltage.

IP5305 has integrated a voltage based fuel gauge

algorithm, acquiring battery’s state of charge precisely.

IP5305 is available in eSOP8.