Diodes Incorporated
SOT563

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AP61300Q

Automotive-Compliant, 5.5V Input, 3A Low IQ Synchronous Buck Converter

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Description

The AP61300Q/AP61302Q is an automotive-compliant, 3A, synchronous buck converter with a wide input voltage range of 2.4V to 5.5V. The device fully integrates a 70mΩ high-side power MOSFET
and a 50mΩ low-side power MOSFET to provide high-efficiency stepdown DC-DC conversion.
The AP61300Q/AP61302Q 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 device is available in a SOT563 package.

Feature(s)

  • AEC-Q100 Qualified for Automotive Applications
  • Device Temperature Grade 1: -40°C to +125°C TA Range
  • VIN: 2.4V to 5.5V
  • Output Voltage (VOUT): 0.6V to VIN
  • 3A Continuous Output Current
  • 0.6V ± 2% Reference Voltage
  • 19μA Low Quiescent Current (Pulse Frequency Modulation)
  • 2.2MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
  • Up to 84% Efficiency at 5mA Light Load
  • Programmable Operation Mode Through EN
  • Pulse Frequency Modulation
  • Pulse Width Modulation Regardless of Output Load
  • Low-Dropout (LDO) Mode
  • Power-Good Indicator
    • AP61302Q
  • Protection Circuitry
  • Undervoltage Lockout (UVLO)
  • VIN Overvoltage Protection (OVP)
  • Peak Current Limit
  • Valley Current Limit
  • Thermal Shutdown
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The AP61300Q and AP61302Q are suitable for automotive
    applications requiring specific change control; these parts
    are AEC-Q100 qualified, PPAP capable, and manufactured in
    IATF 16949 certified facilities.
    https://www.diodes.com/quality/product-definitions/

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Automotive
Type Buck
Minimum Input Voltage (V) 2.4
Maximum Input Voltage (V) 5.5
Output Current (A) 3
Minimum Output Voltage (V) 0.6
Maximum Output Voltage (V) VIN
Quiescent Current Typ (µA) 19
Shutdown Current Typ (µA) 0.1
Frequency Typ (kHz) 2200
HS RDS(ON) (mΩ) 70
LS RDS(ON) (mΩ) 50
Features Enable, Light Load Efficiency, EN pin to set up PFM or Force PWM Output Discharge, Soft-start Fixed, UVLO Fixed, VIN OVP, Overcurrent Protection, Thermal Shutdown, Synchronous Rectification

Related Content

Packages

Technical Documents

Evaluation Boards and User Guides

Calculators

Recommended Soldering Techniques

TN1.pdf