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Diodes Incorporated AP64100SP | Demoboard AP64100SP-EVM
40V, 1A, Low IQ, Synchronous DC/DC Buck Converter with Programmable Frequency
Overview
| Topology | Buck Converter |
| Input voltage | 3.8-40 V |
| Switching frequency | 100-2200 kHz |
| Output 1 | 39 V / 1 A |
| IC revision | 1.0 |
Description
The AP64100 is 1A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 160mΩ high-side power MOSFET and a 80mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion. The APAP64100 device is easily used by minimizing the external component count due to its adoption of peak current mode control. The AP64100 design is optimized for Electromagnetic Interference (EMI) reduction. The converter features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. It also 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. The device is available in a SO-8EP package.
Features
- Wide Input Range: 3.8V-40V
- 1A Continuous Output Current
- 0.8V ±1% Reference Voltage
- 22µA Ultralow Quiescent Current (Pulse Frequency Modulation)
- Programmable Switching Frequency: 100kHz to 2.2MHz
- External Clock Synchronization: 100kHz to 2.2MHz
- Proprietary Gate Driver Design for Best EMI Reduction
- Frequency Spread Spectrum (FSS) to Reduce EMI
- Low-Dropout (LDO) Mode
- Precision Enable Threshold to adjust UVLO
- Protection Circuitry-Undervoltage Lockout (UVLO)-Output Overvoltage Protection (OVP)-Cycle-by-Cycle Peak Current Limit o Thermal Shutdown
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Typical applications
- White Goods and Small Home Appliances, Home Audio, Consumer Electronics
- Network Systems, Optical Communication and Networking Systems General Purpose Point of Load
- 5V, 12V, and 24V Distributed Power Bus Supplies, Cordless Power Tools
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | L(mm) | W(mm) | H(mm) | Fl(mm) | Ceramic Type | Packaging | L(µH) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-CSST Soft Termination, 10 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSST Soft Termination | Capacitance10 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Ceramic TypeX7R Class II | Packaging7" Tape & Reel | – | – | – | – | – | ||||
| WCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3 % | Insulation Resistance5 GΩ | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Ceramic TypeX7R Class II | Packaging7" Tape & Reel | – | – | – | – | – | |||||
 | WE-PD SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | – | – | – | Size7345 | Operating Temperature -40 °C up to +150 °C | – | – | Length7.3 mm | Width7.3 mm | Height4.5 mm | – | – | – | Inductance15 µH | Saturation Current3.1 A | DC Resistance69.5 mΩ | Self Resonant Frequency20.7 MHz | VersionPerformance |