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reference designMP2497

Monolithic Power Systems MP2497

3A, 50V, 100kHz Step-Down Converter with Programmable Output OVP Threshold

Overview

TopologyBuck Converter
Input voltage8-50 V
Switching frequency80-120 kHz
Output 15 V / 3 A
IC revision1.12

Description

The MP2497 is a monolithic step-down switch mode converter with a programmable output current limit. It achieves 3A continuous outputcurrent over a wide input supply range with excellent load and line regulation. An internal 2~4ms soft start prevents inrush current at turningon. And it is capable of providing output line drop compensation.

MP2497 achieves low EMI signature with well controlled switching edges.

Fault condition protection includes hiccup current limit and short circuit protection, programmable output over voltage protection and thermalshutdown.

The MP2497 requires a minimum number of readily available standard external components.The MP2497 is available in SOIC8 and SOIC8Epackage.

Features

    • Wide 4.5V to 50V Operating Input Range
    • Programmable Output Over Voltage Protection
    • Output Adjustable from 0.8V to 25V
    • 0.15Ω Internal Power MOSFET Switch
    • Internal 4ms Soft Start
    • Stable with Low ESR Output Ceramic Capacitors
    • Fixed 100kHz Frequency
    • Low EMI Signature
    • Thermal Shutdown
    • Output Line Drop Compensation
    • Hiccup Circuit Limit and Short Circuit Protection
    • Available in SOIC8 and SOIC8E Package

Typical applications

  • USB Power Supplies
  • Automotive Cigarette Lighter Adapters
  • Power Supply for Linear Chargers

More information

Products

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Data­sheet
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Product series
L(µH)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
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7447709330
SPECWE-PD SMT Power Inductor, 33 µH, 5.5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance33 µH
Performance Rated Current5.5 A
DC Resistance45 mΩ
Self Resonant Frequency8.5 MHz
Size1210 
VersionStandard 
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