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reference designAP62201 | Demoboard AP62201Z6-EVM

Diodes Incorporated AP62201 | Demoboard AP62201Z6-EVM

18V, 2A, Low Iq, COT Synchronous DC/DC Buck Converter

Overview

TopologyBuck Converter
Input voltage4.2-18 V
Output 15 V / 2 A
IC revisionMay 2020

Description

The AP62200 is a 2A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 90mΩ high-side power MOSFET and a 65mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.The AP62200 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 AP62200 design is optimized for Electromagnetic Interference (EMI) reduction. It has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turnoff times, which reduces high-frequency radiated EMI noise caused by MOSFET switching.

Features

  • VIN: 4.2V to 18V
  • Output Voltage (VOUT): 0.8V to 7V
  • 2A Continuous Output Current
  • 0.8V ± 1% Reference Voltage (TA = +25°C)
  • 135μA Low Quiescent Current
  • 740kHz Switching Frequency (VIN = 12V, VOUT = 5V)
  • Up to 84% 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 (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)

Typical applications

  • Network Systems
  • Flat Screen TV Sets and Monitors, Set Top Boxes, Consumer Electronics

More information

Parts approved by Diodes Incorporated

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L(µH)
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7447797470
SPECWE-PDF SMT Power Inductor, 4.7 µH, 6.2 A
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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PDF SMT Power Inductor
Inductance4.7 µH
Rated Current6.2 A
Saturation Current8 A
DC Resistance19.5 mΩ
Self Resonant Frequency45 MHz
MountSMT 
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