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TL2575, TL2575HV
SLVS638C – JA...
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TL2575, TL2575HV
SLVS638C – JANUARY 2006 – REVISED NOVEMBER 2014
TL2575, TL2575HV 1-A Simple Step-Down Switching Voltage
Regulators
1 Features
1 Fixed 3.3-V, 5-V, 12-V, and 15-V Options with ±5% Regulation (Max) Over Line, Load, and Temperature Conditions
Adjustable Option With a Range of 1.23 V to 37 V (57 V for HV Version) 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 (60 V for HV Version) Requires Only Four External Components (Fixed
Versions) and 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
2 Applications
Simple High-Efficiency Step-Down (Buck)
Regulators
Pre-
Regulators for Linear
Regulators On-Card Switching
Regulators Positive-to-Negative Converters (Buck-Boost)
3 Description
The TL2575 and TL2575HV devices provide all the active functions needed for a step-down (buck) switching
regulator in an integrated circuit. They require four to six external components for operation. They accept a wide input-voltage range of up to 60 V (TL2575-HV) and are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustableoutput version. The T...