LM2574 Overview
The LM2574 family is a series of easy to use fixed and adjustable switching voltage regulators. The LM2574 contains all of the active circuitry necessary to construct a stepdown (buck) switching regulator and requires a minimum of external ponents. The LM2574 is available in 3.3V and 5V fixed output versions, or an adjustable version with an output voltage range of 1.23V to 37V.
LM2574 Key Features
- 3.3V, 5V, 12V, and adjustable output versions
- Adjustable version output 1.23V to 37V ±4% max. over
- Guaranteed 0.5A output current
- Wide input voltage, up to 40V
- Thermal shutdown and current limit protection
- Requires only 4 external ponents
- Shutdown capability (standby mode)
- Low power standby mode < 200µA Typical
- High-efficiency
- 52kHz fixed frequency internal oscillator
