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Datasheet Microchip MIC261203

ManufacturerMicrochip
SeriesMIC261203

The MIC261203 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture

Datasheets

  • Download » Datasheet PDF, 1.1 Mb, Revision: 11-05-2015
    MIC261203-28V, 12A Hyper Light Load? Synchronous DC/DC Buck Regulator
    Docket ↓
    MIC261203
    28V, 12A Hyper Light Load™
    Synchronous DC/DC Buck Regulator
    SuperSwitcher IIG™ General Description Features The Micrel MIC261203 is a constant-frequency,
    synchronous DC/DC buck regulator featuring adaptive ontime control architecture. The MIC261203 operates over a
    supply range of 4.5V to 28V. It has an internal linear
    regulator which provides a regulated 5V to power the
    internal control circuitry. MIC261203 operates at a
    constant 600kHz switching frequency in continuousconduction mode and can be used to provide up to 12A of
    output current. The output voltage is adjustable down to
    0.8V. Hyper Light Load™ efficiency – up to 80% at 10mA
    Hyper Speed Control™ architecture enables
    -High Delta V operation (VIN = 28V and VOUT = 0.8V)
    -Small output capacitance
    Input voltage range: 4.5V to 28V
    Output current up to 12A
    Up to 95% efficiency
    Adjustable output voltage from 0.8V to 5.5V
    ±1% FB accuracy
    Any CapacitorTM stable -zero-to-high ESR
    600kHz switching frequency
    Power Good (PG) output
    Foldback current-limit and “hiccup” mode short-circuit ...

Prices

Status

MIC261203-ZYJL-TRMIC261203YJL-TR
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)

Packaging

MIC261203-ZYJL-TRMIC261203YJL-TR
PackageVQFNVQFN
Pins2828

Parametrics

MIC261203-ZYJL-TRMIC261203YJL-TR
# of Outputs11
Automotive RatedNoNo
Duty Cycle Max, %0.820.82
Input Voltage Range, V4.5 - 284.5 - 28
Light Load Efficiency ModeYesYes
Operating Temperature Range, °C-40 to +125-40 to +125
Output Current, mA) Max1200012000
Output Voltage Range, V0.8 - 5.50.8 - 5.5
Quiescent Current, mA) type0.450.45
Regulator TypeStep Down (Buck)Step Down (Buck)
SHUTDOWN Current, µA55
Switching Frequency, kHz600600
Synchronous RectifierYesYes
Vfb, V0.80.8

Eco Plan

MIC261203-ZYJL-TRMIC261203YJL-TR
RoHSCompliantCompliant

Moldel Line

Series: MIC261203 (2)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 36V

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