LM2575S-3.3

SIMPLE SWITCHER 1A降压稳压器 SIMPLE SWITCHER 1A Step-Down Voltage Regulator

The is a SIMPLE SWITCHER® 1A Step-down Voltage Regulator provides all the active functions for a step-down buck switching regulator, capable of driving a 1A load with excellent line and load regulation. This device is available in 3.3V of fixed output voltage and requiring a minimum number of external components, this regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink and in many cases no heat sink is required. A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

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Requires only 4 external components

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52kHz Fixed frequency internal oscillator

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TTL shutdown capability

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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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P+ Product enhancement tested

This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.