Diodes Incorporated — Analog and discrete power solutions
SOT563

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AP61100Q

AUTOMOTIVE-COMPLIANT, 2.3V TO 5.5V INPUT, 1A LOW IQ SYNCHRONOUS BUCK CONVERTER

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Description

The AP61100Q/AP61102Q is an automotive-compliant, 1A, synchronous buck converter with a wide input voltage range of 2.3V to 5.5V. The device fully integrates a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency stepdown DC-DC conversion.

The AP61100Q/AP61102Q 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)

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results
    • Device Temperature Grade 1: -40°C to +125°C TA Range
    • Device HBM ESD Classification Level H3A
    • Device CDM ESD Classification Level C5
  • VIN: 2.3V to 5.5V
  • Output Voltage (VOUT): 0.6V to 3.6V
  • 1A Continuous Output Current
  • 6V ± 2% Reference Voltage
  • 15μA Low Quiescent Current (Pulse Frequency Modulation)
  • 2MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
  • Up to 89% Efficiency at 5mA Light Load
  • Programmable Operation Mode Through EN
    • Pulse Frequency Modulation
    • Pulse Width Modulation Regardless of Output Load
  • Power-Good Indicator
    • AP61102Q
  • 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 AP61100Q and AP61102Q 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/

Application(s)

  • 5V automotive distributed power bus supplies
  • Automotive infotainment
  • Automotive clusters
  • Automotive telematics
  • Advanced driver assistance systems

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Automotive
Type Buck
Minimum Input Voltage (V) 2.3
Maximum Input Voltage (V) 5.5
Output Current (A) 1
Minimum Output Voltage (V) 0.6
Maximum Output Voltage (V) 3.6
Quiescent Current Typ (µA) 15
Shutdown Current Typ (µA) 0.1
Frequency Typ (kHz) 2200
HS RDS(ON) (mΩ) 110
LS RDS(ON) (mΩ) 80
Features Enable,Light Load Efficiency,Forced 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

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-2675 2024-03-28 2024-03-28 Additional Wafer Source SPFAB