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Diodes Incorporated AP65251WU | Demoboard AP65251WU-EVM
500kHz 16V 2A Synchronous DC/DC Buck Converter
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-16 V |
| Output 1 | 1.2 V / 2 A |
| IC revision | 1 |
Description
The AP65251 is an adaptive constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TVs, set-top-boxes, and network systems. The constant-on-time control scheme handles wide input/output voltage ratios and provides low external component count. The internal proprietary circuit enables the device to adopt ultra-low ESR ceramic capacitors.
Features
- VIN 4.5V to 16V
- 2A Continuous Output Current, 2.5A Valley
- Efficiency Up to 95%
- Automated Light Load improvement
- VOUT Adjustable to 0.6 to 6V
- 500kHz Switching Frequency
- Internal Soft-Start
- Enable Pin
- Over current Protection (OCP) with Hiccup
- Thermal Protection
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)
Typical applications
- Gaming Consoles / Flat Screen TV sets and Monitors / Set Top Boxes / Home Audio / Consumer electronics
- Network Systems
- Distributed power systems / FPGA, DSP and ASIC Supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 2.2 µH, 10.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance2.2 µH | Performance Rated Current10.2 A | Saturation Current @ 10%5.6 A | Saturation Current @ 30%13 A | DC Resistance11.4 mΩ | Self Resonant Frequency52 MHz | MaterialSuperflux |