LM2574MX-ADJ/NOPB

TEXAS INSTRUMENTS  LM2574MX-ADJ/NOPB  直流-直流开关降压逐步递减稳压器, 可调, 4V-40V输入, 1.23V-37V输出, 500mA输出, SOIC-14

The is a SIMPLE SWITCHER® step-down Voltage Regulator for use with on-card switching regulators. The LM2574xx series of regulator is monolithic integrated circuit that provides all the active functions for a step-down buck switching regulator, capable of driving a 0.5A load with excellent line and load regulation. This device is available in fixed output voltages of 3.3, 5, 12, 15V and an adjustable output version. Requiring a minimum number of external components, this regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2574xx series offers a high-efficiency replacement for popular three-terminal linear regulators. Because of its high efficiency, the copper traces on the printed-circuit board PCB are normally the only heat sinking needed. A standard series of inductors optimized for use with the LM2574 are available from several different manufacturers.

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Requires only 4 external components

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TTL shutdown capability and low-power standby mode

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High efficiency

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Uses readily available standard inductors

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Thermal shutdown and current-limit protection

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Green product and no Sb/Br