LM2595S-3.3

TEXAS INSTRUMENTS  LM2595S-3.3  降压开关稳压器, 固定, 4.5V-40V输入, 3.3V和1A输出, TO-263-5

The is a 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. It requires a minimum number of external components, this regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2595 series operates at a switching frequency of 150kHz, thus allowing smaller-sized filter components than what would be needed with lower-frequency switching regulators. A standard series of inductors are available from several different manufacturers optimized for use with the LM2595 series. This feature greatly simplifies the design of switch-mode power supplies. Other features include a ±4% tolerance on output voltage under specified input voltage and output load conditions and ±15% on the oscillator frequency. External shutdown is included, featuring typically 85µA stand-by current.

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Requires only 4 external components

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Excellent line and load regulation specifications

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TTL Shutdown capability

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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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85µA Typically low power standby mode