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Diodes Incorporated AP72200 | Demoboard AP72200-EVM
High Efficiency Synchronous DC/DC Buck-Boost Converter
Overview
| Topology | Buck-Boost Converter |
| Input voltage | 2.3-5.5 V |
| Switching frequency | 2100-2900 kHz |
| Output 1 | 3.4 V / 2 A |
| IC revision | 1-2 |
Description
The AP72200 is a high current synchronousbuck-boost converter providing highefficiency, excellent transient response andhigh DC output accuracy. The targetedapplications are smartphones, tablets, andother handheld devices. The AP72200utilizes a four switches H-bridgeconfiguration to support buck and boostoperation. The buck-boost provides at least2A output current.The current control scheme handles wideinput/output voltage ratios and provides lowexternal component count with outstandingperformance in line/load transient responseand seamless transition between buck andboost modes.
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>2.9VEfficiency Up to 97%
- 2.5MHz Switching Frequency
- I2C Interface
- Selectable MODE PFM/PWM
- Ultrasonic Operation Programmable through I2C
- Power Good Indicator with 5MΩ Internal Pull-Up
- 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)
Typical applications
- Smartphones / Tablets / Portable Consumer Devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Power Inductor, 1 µH, 6.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance1 µH | Performance Rated Current6.2 A | Saturation Current @ 10%6.5 A | Saturation Current @ 30%12.5 A | DC Resistance27 mΩ | Self Resonant Frequency89 MHz | MountSMT |