LM2575 Datasheet – Voltage Regulator

Part Number : LM2575


Package : TO-263 Type

Manufacturers : Texas Instruments

Pinouts :

LM2575 datasheet

Description :

The LM2575 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. 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. The device also offers internal frequency compensation, a fixed-frequency oscillator, cycle-by-cycle current limiting, and thermal shutdown. In addition, a manual shutdown is available via an external ON/OFF pin.


• 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 (Typ) Fixed-Frequency Internal Oscillator
• TTL Shutdown Capability With 50-µA (Typ) Standby Current
• High Efficiency…as High as 88% (Typ)
• 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 TO-263), see TL2575 Datasheet

• Simple High-Efficiency Step-Down (Buck)
• Pre-Regulator for Linear Regulators
• On-Card Switching Regulators
• Positive-to-Negative Converter (Buck-Boost)

Other data sheets within the file : LM2575IN, LM2575INE4

LM2575 Datasheet PDF Download

LM2575 pdf