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MIC2571

One Cell Boost Regulator

Status: In Production

Features:

  • 0.9V to 15V operation
  • 120µA typical quiescent current
  • Complete regulator fits 0.3 in² area
  • 2.85V/3.3V/5V selectable output voltage (MIC2571-1)
  • Adjustable output up to 36V (MIC2571-2)
  • 1A current limited pass element
  • Frequency synchronization input
  • 8-lead MSOP package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

MIC2571 is a micropower boost switching regulator that operates from one alkaline, nickel-metal-hydride cell, or lithium cell.

The MIC2571 accepts a positive input voltage between 0.9V and 15V. Its typical no-load supply current is 120µA.

The MIC2571 is available in selectable fixed output or adjustable output versions. The MIC2571-1 can be configured for 2.85V, 3.3V, or 5V by connecting one of three separate feedback pins to the output. The MIC2571-2 can be configured for an output voltage ranging between its input voltage and 36V, using an external resistor network.

The MIC2571 has a fixed switching frequency of 20kHz. An external SYNC connection allows the switching frequency to be synchronized to an external signal.

The MIC2571 requires only four components (diode, inductor, input capacitor and output capacitor) to implement a boost regulator. A complete regulator can be constructed in a 0.3 in² area.

All versions are available in an 8-lead MSOP with an operating range from -40°C to +85°C.

Additional Features
    • Operates from a single-cell supply
      • 0.9V to 15V operation
    • 120µA typical quiescent current
    • Complete regulator fits 0.3 in² area
    • 2.85V/3.3V/5V selectable output voltage (MIC2571-1)
    • Adjustable output up to 36V (MIC2571-2)
    • 1A current limited pass element
    • Frequency synchronization input
    • 8-lead MSOP package
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
Input Voltage Range Min (V)
0.9
Input Voltage Range Max (V)
15
Output Voltage Range Min (V)
2.85
Output Voltage Range Max (V)
36
Output Current (mA) max
1100
Quiescent Current (mA) typ
0.120
Switching Frequency (kHz)
20
Operating Temp Range
-40 to 85
Vfb (V)
0.22
Duty Cycle Max (%)
67
Switch current (A) typ
1.1

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Data Sheet


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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2571-1YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC2571-2YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC2571-1YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
MIC2571-2YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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