Part Number: LM2575, LM2575TADJ, LM2575T-5.0
Function: 52kHz, Simple 1A, Step-Down Voltage Regulator
Package: TO-220-5 Pin, DIP 16 Pin
Manufacturer: National Semiconductor, Micrel Semicondcutor
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Description
The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.
Pinouts:
Features
1. 3.3V, 5V, 12V, 15V, and adjustable output versions
2. Adjustable version output voltage range, 1.23V to 37V (57V for HV version) ±4% max over line and load conditions
3. Guaranteed 1A output current
4. Wide input voltage range, 40V up to 60V for HV version
5. Requires only 4 external components
6. 52 kHz fixed frequency internal oscillator
7. TTL shutdown capability, low power standby mode
8. High efficiency
9. Uses readily available standard inductors
Applications:
1. Simple high-efficiency step-down (buck) regulator
2. Efficient pre-regulator for linear regulators
3. On-card switching regulators
4. Positive to negative converter (Buck-Boost)
Other data sheets are available within the file: LM2575BN, LM2575BT, LM2575BU, 2575-3.3BT
LM2575 Datasheet PDF Download
