Description
The AP72202 is a high-current synchronous buck-boost converter
providing high efficiency, excellent transient response and high DC
output accuracy. The targeted applications are smartphones, tablets,
and other handheld devices. The AP72202 utilizes a four-switch Hbridge configuration to support buck and boost operation. The buckboost provides at least 2A output current.
The current control scheme handles wide input/output voltage ratios
and provides low external component count with outstanding
performance in line/load transient response and seamless transition
between buck and boost modes.
The AP72202 features I2C compatible, two-wire serial interface
consisting of a bidirectional serial-data line, SDA, and a serial-clock
line, SCL. It supports SCL clock rates up to 3.4MHz.
The AP72202 also features UVLO, OTP, and OCP to protect the circuit.
This IC is available in a small 2.125 × 1.750mm, 20 balls WLCSP
package.

Features
• VIN 2.3V to 5.5V
• Output Voltage Range: 2.6V to 5.14V
• 2A Continuous Output Current for VOUT = 3.4V and VIN > 2.9V
Efficiency Up to 97%
• 2.5MHz Switching Frequency
• I
2C Interface
• Selectable MODE PFM/PWM
• Ultrasonic Operation Programmable Through I2C
• Power-Good (PG) Indicator with 5MΩ Internal Pullup
• Adjustable Overcurrent Limit
• Fully Protected for Overcurrent, Short-Circuit, Reverse Current
Protection, Overtemperature, and UVLO
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change
control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP
capable, and manufactured in IATF 16949 certified
facilities), please contact us or your local Diodes
representative.
https://www.diodes.com/quality/product-definitions/

Applications
• Smartphones
• Tablets
• Portable consumer devices