Diodes Incorporated
SOT26

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AP62300

4.2V TO 18V INPUT, 3A LOW IQ SYNCHRONOUS BUCK CONVERTER, PFM/PWM

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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.

The AP62300/AP62301/AP62300T 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.

The AP62300/AP62301 is available in SOT563 (Standard) and TSOT26 (Standard) packages. The AP62300T is available in a TSOT26 (Standard) package.

Feature(s)

  • VIN: 4.2V to 18V
  • Output Voltage (VOUT): 0.8V to 7V
  • 3A Continuous Output Current
  • 8V ± 1% Reference Voltage (TA = +25°C)
    • AP62300 and AP62301
  • 763V ± 1% Reference Voltage (TA = +25°C)
    • AP62300T
  • 155μA Low Quiescent Current (Pulse Frequency Modulation)
  • 750kHz Switching Frequency (VIN = 12V, VOUT = 5V)
  • 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
    • Output Undervoltage Protection
    • Thermal Shutdown
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

  • 5V and 12V distributed power bus supplies
  • Flat screen TV sets and monitors
  • White goods and small home appliances
  • FPGA, DSP, and ASIC supplies
  • Home audios
  • Network systems
  • Gaming consoles
  • Consumer electronics
  • General purpose point of loads

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Type Buck
Minimum Input Voltage (V) 4.2
Maximum Input Voltage (V) 18
Output Current (A) 3
Minimum Output Voltage (V) 0.8
Maximum Output Voltage (V) 7
Quiescent Current Typ (µA) 155
Shutdown Current Typ (µA) 1.5
Frequency Typ (kHz) 750
HS RDS(ON) (mΩ) 75
LS RDS(ON) (mΩ) 45
Features Enable,Light Load Efficiency,Soft-start Fixed,UVLO Adjustable,Overcurrent Protection,Thermal Shutdown,Synchronous Rectification

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2605 2023-03-09 2023-06-09 Qualified Additional Cu Pillar Bump Site and Bill of Materials (BOM) Lead Frame Material
PCN-2520 2021-05-27 2021-08-27 Qualified Additional Bump Site and Assembly/Test (A/T) Sites
PCN-2501 2021-01-13 2021-04-13 Qualified Additional A/T Sites