SA24493TLQ-Products-Silergy Corp

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SA24493TLQ

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High Efficiency, 36V Input, 3A Synchronous Step Down Regulators
Datasheet
SA24493TLQ High Efficiency, 36V Input, 3A Synchronous Step Down Regulators Datasheet
    Part numberSA24493TLQ
    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)33.84
    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)(%)94
    Operation modePFM
    Iq (typ) (uA)18
    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 Start-Up
    PackageQFN2×2-12
    Operating temperature range(°C)-40 to 125
    Functional safety categoryCapable
    • 4.5-36V Input Voltage Range
    • Low RDS(ON) for Internal Switches (Top/Bottom): 130/75mΩ
    • Low quiescent current: Iq=18µA (Typ.)
    • Internal Compensation 
    • Internal 1ms Soft-start Limits the Inrush Current
    • Adjustable Switching Frequency Range: 300kHz to 2.2MHz
    • Output Current Capability: 3A
    • ±1% 0.6V Reference Over -40°C~125°C
    • Cycle-by-cycle Peak Current Limit
    • Short-Circuit Protection
    • Spread Spectrum Function
    • Thermal Shutdown and Auto Recovery
    • Compact Package: QFN2×2-12
    • Automotive AEC- Q100 Grade 1 Qualified
     
    The SA24493 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 SA24493 uses a peak current control architecture. The switching frequency is adjustable from 300kHz to 2.2MHz using an external resistor. The device also features ultra-low quiescent current to achieve high efficiency under light load conditions. Additionally, the internal soft-start function limits inrush current during power-up. 
    The SA24493 is available in a QFN2×2-12 Package.
     

    Evaluation Board

    • SA24493_1

      Photo of evaluation board

    • SA24493_2

      Photo of evaluation board

    • SA24493_3

      Photo of evaluation board

    • SA24493_4

      Photo of evaluation board

    • SA24493_5

      Photo of evaluation board

    EVB_SA24493TLQ

    The EVB_SA24493TLQ is intended for evaluating high efficiency, 36V input, 3A synchronous step down regulators.

    Technical Documentation