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Diodes Incorporated AP61100/AP61102 Synchronous Buck Converter

Diodes Incorporated AP61100/AP61102 Synchronous Buck Converter is an automotive-compliant converter with a wide input voltage range of 2.3V to 5.5V. This converter integrates a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The Diodes Incorporated AP61100/AP61102 converter adopts Constant On-Time (COT) control, achieving fast transient response, easy loop stabilization, and low output voltage ripple. This converter is available in a SOT563 package. Typical applications include 5V automotive distributed power bus supplies, automotive infotainment, automotive clusters, automotive telematics, and advanced driver assistance systems.

Features

  • Integrates a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET
  • AEC-Q100 qualified with the following results
    • -40°C to 125°C TA rangeDevice temperature grade 1 
    • Device HBM ESD classification level H3A
    • Device CDM ESD classification level C5
  • Provides high-efficiency step-down DC-DC conversion
  • Adopts Constant On-Time (COT) control to achieve
    • Fast transient response
    • Easy loop stabilization
    • Low output voltage ripple
  • Programmable operation mode through EN
    • Pulse Frequency Modulation (PFM)
    • Pulse Width Modulation (PWM) regardless of output
  • Power-good indicator
    • AP61102Q
  • Protection circuitry
    • Undervoltage Lockout (UVLO)
    • VIN Overvoltage Protection (OVP)
    • Peak current limit
    • Valley current limit
    • Thermal shutdown

Specifications

  • 2.3V to 5.5V wide input voltage range
  • 15μA low quiescent current (PFM)
  • 1A continuous output current
  • 0.6V to 3.6V output voltage range
  • 0.6V±2% reference voltage
  • 2.2MHz switching frequency (VIN=5V and VOUT=1.8V)
  • Up to 89% efficiency at 5mA light load

Applications

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

Functional Block Diagram

Block Diagram - Diodes Incorporated AP61100/AP61102 Synchronous Buck Converter

Associated Product

Diodes Incorporated DC/DC Buck Converters

Offer high efficiency, cost-effectiveness, and design flexibility housed within compact designs.

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發佈日期: 2020-06-09 | 更新日期: 2024-07-31