參數(shù)資料
    型號(hào)： 935269492115
    廠商： NXP SEMICONDUCTORS
    元件分類(lèi)： 穩(wěn)壓器
    英文描述： 0.3 A SWITCHING REGULATOR, 57.5 kHz SWITCHING FREQ-MAX, PDSO5
    封裝： 1.50 MM, PLASTIC, MO-178, SOT-25, SOT-23, SOP-5
    文件頁(yè)數(shù)： 11/21頁(yè)
    文件大?。?/td> 333K
    代理商： 935269492115
    Philips Semiconductors - PIP - SA57254-XX; CMOS switching regulator (PWM controlled)
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    Product Information
    SA57254-XX; CMOS
    switching regulator
    (PWM controlled)
    Information as of 2002-08-07
    Stay informed
    Download datasheet
    Block diagram
    Parametrics
    topGeneral description
    The SA57254-XX is a fully integrated DC/DC converter circuit. Efficient, compact power conversion is
    achieved with a pulse width modulation (PWM) controlled switching regulator circuit designed using
    CMOS processing. Low ripple and high efficiency of typically 83pct are achieved through PWM control.
    The regulator has a high precision output with +-2.4pct accuracy. Few external components are required.
    The SA57254-XX has a built-in soft-start circuit which reduces inrush current and voltage overshoot during
    start-up. A low resistance CMOS power FET, which has low leakage current and low parasitic capacitance,
    is on-chip.
    topFeatures
    q
    Operates from 0.7 to 9 V DC
    q
    Ultra low operating supply currenttypically 17 mA
    q
    Built-in power FET
    q
    High efficiency-typically 83pct
    q
    High precision output-typically +-2.4pct
    q
    Operating temperature range of -40 to +85 Cel
    q
    Available output voltages: 2.0, 2.5, 2.8, 3.0, 3.3, 3.6, 5.0 V DC
    q
    Available in SOT23-5 surface mount package
    topApplications
    q
    Mobile and portable phones
    q
    Instrumentation and industrial products
    q
    Other portable, battery-operated equipment
    file:///G|/imaging/BITTING/cpl_IMAGES/PhilipsSe...54-XX;CMOSswitchingregulator(PWMcontrolled).htm (1 of 3) [Aug-28-2002 9:21:24 AM]
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