Texas Instruments, LM25574MT/NOPB Step-Down Switching Regulator, 1-Channel 500mA Adjustable 16-Pin, TSSOP

The LM557x and LM2557x are easy to use high-performance SIMPLE SWITCHER® buck regulators which allow design engineers to design and optimize a robust power supply using a minimum set of components.

Integrated N-channel MOSFET
Ultra-Wide Input Voltage Range up to 42V/75V
Emulated current mode for fast transient response
Adjustable Output Voltage as Low as 1.225V
1.5% Feedback Reference Accuracy
Operating frequency adjustable between 50kHz and 500kHz with single resistor
Adjustable soft-start

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SIMPLE SWITCHER® Regulators, Texas Instruments

Use for wide voltage inputs designs up to 75V, and a balance between ease of use and flexibility.