LM2675 Datasheet – 1A, Voltage Regulator ( PDF )

Part Number: LM2675, LM2675N-ADJ, LM2675M-5.0

Function: 1A, Step-Down Voltage Regulator

Package: DIP, SOP 8 Pin Type

Manufacturer: National Semiconductor, Texas Instruments


LM2675 voltage regulator


The LM2675 series of regulators are monolithic integrated circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load current with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V, 12V, and an adjustable output version.


LM2675 datasheet pinout


1. Efficiency up to 96%
2. Computer Design Software LM267X Made Simple
3. Simple and easy to design with
4. Requires only 5 external components
5. Uses readily available standard inductors
6. 3.3V, 5.0V, 12V, and adjustable output versions
7. Adjustable version output voltage range: 1.21V to 37V
8. ±1.5% max output voltage tolerance over line and load conditions
9. Guaranteed 1A output load current
10. 0.25Ω DMOS Output Switch
11. Wide input voltage range: 8V to 40V
12. 260 kHz fixed frequency internal oscillator
13. TTL shutdown capability, low power standby mode
14. Thermal shutdown and current limit protection

Application Circuit

LM2675 application circuit


1. Simple High Efficiency (>90%) Step-Down (Buck) Regulator
2. Efficient Pre-Regulator for Linear Regulators
3. Positive-to-Negative Converter


LM2675 Datasheet PDF Download


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