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Datasheet Microchip MIC2570-1YM-TR

Part NumberMIC2570-1YM-TR

MIC2570 is a micropower boost switching regulator that operates from two alkaline, two nickel-metal-hydride cells, or one lithium cell


  • Download » Datasheet PDF, 368 Kb, Revision: 11-05-2015
    MIC2570 - Two-Cell Switching Regulator
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    MIC2570 Micrel, Inc. MIC2570
    Two-Cell Switching Regulator General Description Features Micrel’s MIC2570 is a micropower boost switching regulator
    that operates from two alkaline, two nickel-metal-hydride
    cells, or one lithium cell. Operates from a two-cell supply
    1.3V to 15V operation 130ВµA typical quiescent current Complete regulator п¬Ѓts 0.6 in2 area 2.85V/3.3V/5V selectable output voltage (MIC2570-1) Adjustable output up to 36V (MIC2570-2) 1A current limited pass element Frequency synchronization input 8-lead SOIC package The MIC2570 accepts a positive input voltage between 1.3V
    and 15V. Its typical no-load supply current is 130ВµA.
    The MIC2570 is available in selectable fixed output or adjustable output versions. The MIC2570-1 can be configured
    for 2.85V, 3.3V, or 5V by connecting one of three separate
    feedback pins to the output. The MIC2570-2 can be configured for an output voltage ranging between its input voltage
    and 36V, using an external resistor network. Applications The MIC2570 has a п¬Ѓxed switching frequency of 20kHz. An
    external SYNC connection allows the switching frequency to
    be synchronized to an external signal. The MIC2570 requires only four components (diode, inductor,
    input capacitor and output capacitor) to implement a boost
    regulator. A complete regulator can be constructed in a 0.6
    in2 area.
    All versions are available in an 8-lead SOIC with an operating
    range from –40°C to +85°. LCD bias generator
    Glucose meters
    Single-cell lithium to 3.3V or 5V converters
    Two-cell alkaline to В±5V converters
    Two-cell alkaline to –5V converters
    Battery-powered, hand-held instruments
    Palmtop computers ...



Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)




Alternative TopologySEPIC
Automotive QualNo
Duty Cycle Max67 %
Input Voltage Range Max15 V
Input Voltage Range Min(V)1.3
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +85 °C
Output Voltage Range Max36 V
Output Voltage Range Min2.85 V
Quiescent Current0.130 mA) typ
Switch current1.1 A) typ
Switching Frequency20 kHz
Synchronous RectifierNo
Vfb0.22 V

Eco Plan


Moldel Line

Series: MIC2570 (4)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Up (Boost) - Non-Synchronous Products

Other Names:

MIC25701YMTR, MIC2570 1YM TR

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