[ AP2200]

MS1462-E-00

1

AP2200

Step-up DC/DC converter IC supporting 1 or 2 solar cells

OVERVIEW

The AP2200 is a voltage step-up DC/DC converter using the synchronous rectification method to

be activated with 1 or 2 solar cells and is ideal for charging lithium-ion batteries or outputting USB

VBUS voltage. Also, the MPPT (Max Power Point Tracking) function is embedded in order to

maximize the output power from the solar cells.

FEATURES

 Input voltage range

0.4 V to 1.6 V

 Operating temperature range

-30 to 85°C

 Input power

Up to 400 mW per 1 cell

Up to 800 mW per 2 cells

 Output voltage

4.0 V (±2%) per 1 cell

5.0 V (±5.0%) per 2 cells

 Control method

Comparator control method

 Rectification method

Synchronous rectification method

 Standby function

When the STBY pin is H, the LC pin is fixed to H

 No battery detect function

When the VB pin voltage decreases, the LC pin is fixed to H

 Efficiency

70% (1 cell input, 4.0 V, 50 mA output),

80% (2 cells input, 5.0 V, 80 mA output)

 Package

QFN 16 pin

 Application

For charging a lithium-ion battery and

USB VBUS source with 1 or 2 solar cells