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Monolithic Power Systems (MPS) MP2462 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MP2462 Synchronous Step-Down Converters are highly efficient switching regulators designed for a wide range of power applications. These converters operate from a 4.2V to 32V input voltage range and deliver up to 2A of continuous output current. Integrated high-side and low-side MOSFETs simplify design while providing fast response through current-mode control.

The MP2462 devices feature a low 55μA quiescent current, well-suited for battery-powered and standby-power systems. These converters improve efficiency at light loads by reducing switching frequency and include low-dropout operation for battery applications. Protection features such as over-current protection, thermal shutdown, output discharge, and internal soft start help ensure reliable operation.

The MPS converters require only a few external components and are housed in a compact TSOT23-6 package for space-constrained designs. High efficiency and a wide input range make the converters suitable for smart-home devices, wide-input power supplies, and battery-powered equipment.

Features

  • Wide 4.2V to 32V operating input voltage range
  • 2A continuous output current
  • 55μA sleep-mode quiescent current
  • 160mΩ/80mΩ high-side/low-side on-resistance for internal power MOSFETs
  • High Feedback (FB) accuracy
    • ±0.7% at +25°C
    • ±1% from -40°C to +125°C
  • Internal Soft Start (SS)
  • Fixed 800kHz switching frequency
  • Low-Dropout (LDO) mode
  • Output discharge
  • Thermal shutdown
  • Over-Current Protection (OCP) with hiccup mode
  • Available in a TSOT23-6 package
  • Optimized performance with the MPS MPL-AL6060 inductor series

Applications

  • Battery-powered systems
  • Smart homes
  • Wide input-range power supplies
  • Standby power supplies

Specifications

  • 4.2V to 32V operating supply voltage range
  • 2.2W maximum continuous power dissipation
  • Input under-voltage lockout (UVLO) threshold
    • 3.55V to 4.15V rising range
    • 360mV hysteresis
  • Supply current
    • 100µA maximum quiescent, 55µA typical
    • 3µA maximum shutdown
  • MOSFET
    • 160mΩ typical high-side MOSFET (HS-FET) on-resistance
    • 80mΩ typical low-side MOSFET (LS-FET) on-resistance
    • 1µA maximum switch leakage current
  • Current limit and Zero-Current Detection (ZCD)
    • 2.1A to 3.6A high-side (HS) switching peak current limit range
    • 1.85A to 2.95A low-side (LS) switching peak current limit range
    • 11.5% typical short hiccup duty cycle
    • 50mA typical ZCD current
  • 600kHz to 950kHz switching frequency range, 800kHz typical
  • 110ns (typical) minimum on time
  • 200ns (typical) minimum off time
  • Reference and SS
    • Feedback (FB) voltage
      • 596mV to 604mV range at +25°C, 600mV typical
      • 594mV to 606mV range from -40°C to +125°C, 600mV typical
    • ±50nA FB current range
    • 2.5ms typical internal SS time
  • Enable (EN) and UVLO
    • 1.14V to 1.3V EN rising threshold range, 1.22V typical
    • 220mV typical EN hysteresis
    • 1MΩ typical EN pull-down resistor
  • 2µs typical output over-voltage (OV) delay
  • 150Ω typical discharge resistor
  • Thermal
    • 150°C shutdown
    • 20°C hysteresis
  • -40°C to +125°C operating junction temperature range
  • +150°C maximum junction temperature
  • +260°C maximum lead temperature

Typical Application

Monolithic Power Systems (MPS) MP2462 Synchronous Step-Down Converters

Functional Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MP2462 Synchronous Step-Down Converters

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Published: 2026-10-22 | Updated: 2026-10-26