Texas Instruments LM2575
The LM2575 device greatly simplifies the design of switching power supplies by conveniently providing all the active functions needed for a step-down (buck) switching regulator in an integrated circuit. The device also offers internal frequency compensation, a fixed-frequency oscillator, cycle-by-cycle current limiting, and thermal shutdown. The LM2575 represents a superior alternative to popular three-terminal linear regulators.| Part No. | LM2575 |
|---|---|
| Datasheet | LM2575 Download |
| Manufacturer |  Texas Instruments |
| Description | 1-A Simple Step-Down Switching Voltage Regulator |
| Buy | Stock & Price |
FEATURES
●1 Adjustable With a Range of 1.23 V to 37 V and ±4% Regulation (Max) Over Line, Load, and Temperature Conditions● Specified 1-A Output Current
● Wide Input Voltage Range 4.75 V to 40 V
● Uses Readily Available Standard Inductors
● 52-kHz (Typical) Fixed-Frequency Internal Oscillator
● TTL Shutdown Capability With 50-μA (Typical) Standby Current
● High Efficiency…as High as 88% (Typical)
● Thermal Shutdown and Current-Limit Protection With Cycle-by-Cycle Current Limiting
● For the Full Offering of Voltages (Including Fixed- Output Options) and Packages (Including TO263), See TL2575 Data Sheet, SLVS638 2
APPLICATIONS
● Simple High-Efficiency Step-Down (Buck) Regulator● Pre-Regulator for Linear Regulators
● On-Card Switching Regulators
● Positive-to-Negative Converter (Buck-Boost) 3
DESCRIPTION
Accepting a wide input voltage range and available in an adjustable output version, the LM2575 has an integrated switch capable of delivering 1 A of load current, with excellent line and load regulation.
