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.