SA24483ETLQ-Products-Silergy Corp

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SA24483ETLQ

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High Efficiency, 36V Input, 3A Synchronous Step Down Regulator
Datasheet
SA24483ETLQ High Efficiency, 36V Input, 3A Synchronous Step Down Regulator Datasheet
    Part numberSA24483ETLQ
    Channel(#)1
    Vin (min) (V)4.5
    Vin (max) (V)36
    Switching frequency (min)(kHz)300
    Switching frequency (max)(kHz)2200
    Vout (min) (V)0.6
    Vout (max) (V)34.2
    Iout (max) (A)3
    Vout2 (min)(V)
    Vout2 (max )(V)
    Iout2 (max)(A)
    Vref accuracy (±%)1
    Vout accuracy(±%)
    Control modePeak current control
    Duty cycle (max)(%)95
    Operation modeFCCM
    Iq (typ) (uA)
    FeaturesEnable,Power good,Auto-discharge,Fixed soft-start,UVP with hiccup,Low ISD,Adjustable switching frequency,Spread spectrum,Cycle by cycle overcurrent protection,Pre-bias startup
    PackageQFN2×2-12
    Operating temperature range(°C)-40 to 125
    Functional safety categoryCapable
    • Input Voltage Range: 4.5-36V
    • Low RDS(ON) for Internal Switches (Top/Bottom): 130/75mΩ
    • Internal Compensation 
    • Internal 1ms Soft-start Limits the Inrush Current
    • Adjustable Switching Frequency Range: 300kHz to 2.2MHz
    • Light Load Operating Mode: FCCM
    • Output Current Capability:3A
    •±1% 0.6V Reference Over -40°C~125°C
    • Cycle-by-cycle Peak Current Limitation
    • Short Circuit Protection
    • Spread Spectrum Function
    • Thermal Shutdown and Auto Recovery
    • Compact Package: QFN2×2-12
    • Automotive AEC-Q100 Grade 1 Qualified
    The SA24483E is a high efficiency synchronous step-down DC-DC converter capable of delivering a load current of 3A. It operates over a wide input voltage range of 4.5V to 36V and integrates main and synchronous MOSFET switches with very low RDS(ON) to minimize conduction loss.
    The SA24483E uses a peak current control scheme. The switching frequency is adjustable from 300kHz to 2.2MHz using an external resistor. The SA24483E works at Force Continuous Conduction Mode (FCCM) under light load for small output voltage ripple. Additionally, the internal soft-start function limits inrush current during power-up. 
    The SA24483E is available in a QFN2×2-12 Package.

    Evaluation Board

    • SA24483E-1

      Photo of evaluation board

    • SA24483E-2

      Photo of evaluation board

    EVB_SA24483ETLQ

    EVB_SA24483ETLQ is intended for evaluating high efficiency, 36V input, 3A synchronous step down regulator.

    Technical Documentation