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Diodes Incorporated AP62800 | Demoboard AP62800SJ-EVM
4.5V TO 17V INPUT, 8A SYNCHRONOUS BUCK CONVERTER
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-17 V |
| Switching frequency | 400-1200 kHz |
| Output 1 | 5 V / 8 A |
| IC revision | 2 |
Description
The AP62800 is a 8A, synchronous buck converter with a wide input voltage range of 4.5V to 17V. The device fully integrates a 22mΩ high-side power MOSFET and a 10mΩ low-62800side power MOSFET to provide high-efficiency step-down DC-DC conversion.The AP62800 device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple.The AP62800 design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high-frequency radiated EMI noise caused by MOSFET switching.
Features
VIN: 4.5V to 17VOutput Voltage (VOUT): 0.6V to 7V8A Continuous Output Current0.6V ± 1% Reference Voltage195μA Quiescent CurrentSelectable Operation Modes
- Pulse Frequency Modulation (PFM)
- Ultrasonic Mode (USM)
- Pulse Width Modulation (PWM)Selectable Switching Frequency
- 400kHz
- 800kHz
- 1.2MHzProgrammable Soft-Start TimeProprietary Gate Driver Design for Best EMI ReductionPower-Good IndicatorPrecision Enable Threshold to Adjust UVLOProtection Circuitry
- Undervoltage Lockout (UVLO)
- Cycle-by-Cycle Valley Current Limit
- Thermal Shutdown
Typical applications
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206093 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 47 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | ||
| 885012206095 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | ||
| 885012206076 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±10% | 25 | 0603 | -55 °C up to +125 °C | 10 | 0.5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | ||
 | 74439344012 | SPEC | 8 files | WE-XHMI SMT Power Inductor | – | – | – | 6030 | -40 °C up to +125 °C | – | – | – | 6.65 | 6.45 | 3.3 | – | – | 1.2 | 14.45 | 21.6 | 6.4 | 53 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206093 | SPEC | |
| 885012206095 | SPEC | |
| 885012206076 | SPEC | |
| 74439344012 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Mount | Samples |
|---|