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MIC2141
  • MIC2141

MIC2141

In Production

The MIC2141 is a micropower boost switching regulator that can operate from 3- or 4-cell nickel-metal-hydride batteries or a single Li-Ion cell. This regulator employs a constant 330kHz, fixed 18% duty-cycle, gated-oscillator architecture. The MIC2141 can be used in applications where the output voltage must be dynamically adjusted. The device features a control signal input which is used to proportionally adjust the output voltage. The control signal input has a gain of 6, allowing a 0.8V to 3.6V control signal to vary a 4.8V to 22V output. The MIC2141 requires only three external components to operate and is available in a tiny 5-lead SOT-23 package for space and power-sensitive portable applications. The MIC2141 draws only 70µA of quiescent current and can op...

Microchip Technology MIC2141 Product Info

16 April 2026 0

Parameters

VIN Min V (volt)

2.5

VIN Max V (volt)

14.0

VOUT Min V (volt)

4.8

VOUT Max V (volt)

22.0

Features

    • Implements low-power boost, SEPIC, or flyback
    • 2.2V to 14V input voltage
    • 330kHz switching frequency
    • <2µA shutdown current
    • 70µA quiescent current
    • 1.24V bandgap reference
    • typical output current 1mA to 10mA
    • SOT-23-5 package

Description

The MIC2141 is a micropower boost switching regulator that can operate from 3- or 4-cell nickel-metal-hydride batteries or a single Li-Ion cell. This regulator employs a constant 330kHz, fixed 18% duty-cycle, gated-oscillator architecture.

The MIC2141 can be used in applications where the output voltage must be dynamically adjusted. The device features a control signal input which is used to proportionally adjust the output voltage. The control signal input has a gain of 6, allowing a 0.8V to 3.6V control signal to vary a 4.8V to 22V output.

The MIC2141 requires only three external components to operate and is available in a tiny 5-lead SOT-23 package for space and power-sensitive portable applications. The MIC2141 draws only 70µA of quiescent current and can operate with an efficiency exceeding 85%.

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