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reference designAP62301 | Demoboard AP62301WU-EVM

Diodes Incorporated AP62301 | Demoboard AP62301WU-EVM

18V, 3A, Low Iq, COT Synchronous DC/DC Buck Converter

Overview

TopologyBuck Converter
Input voltage4.2-18 V
Output 17 V / 3 A
IC revision1-1

Description

The AP62300/AP62301/AP62300T is a 3A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 75mΩ high-side power MOSFET and a 45mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP62300/AP62301/AP62300T 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.

Features

  • VIN Range: 4.2V -18V
  • Output Voltage range: 0.8V to 7V
  • 3A Continuous Output Current
  • 0.8V ± 1% Reference Voltage (TA = +25°C) => AP62300 and AP62301
  • 0.7625V ± 1% Reference Voltage (TA = +25°C) => AP62300T
  • 155µA Low Quiescent Current
  • 750kHz Switching Frequency
  • Up to 83% Efficiency at 5mA Light Load
  • Proprietary Gate Driver Design for Best EMI Reduction
  • Protection Circuitry-Undervoltage Lockout (UVLO)-Cycle-by-Cycle Valley Current Limit-Thermal Shutdown
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Typical applications

  • Network Systems, General Purpose Point of Load
  • Flat Screen TV Sets and Monitors, Set Top Boxes, Consumer Electronics

More information

Parts approved by Diodes Incorporated

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7447714033
SPECWE-PD SMT Power Inductor, 3.3 µH, 9 A
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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance3.3 µH
Saturation Current9 A
DC Resistance10.5 mΩ
Self Resonant Frequency42 MHz
Size1050 
VersionPerformance 
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