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Details for LM2574M-ADJ/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Buy Directly from Texas Instruments (7168 in stock) $1.0900
LM2574M-ADJ/NOPB image

LM2574M-ADJ/NOPB by Texas Instruments

3.3-V, 5-V, 12-V, 15-V, and Adjustable Output Versions
52-kHz Fixed-Frequency Internal Oscillator
Adjustable Version Output Voltage Range: 1.23 V to 37 V (57 V for HV version) u00b14% Maximum Over Line and Load Conditions
High Efficiency
Requires Only 4 External Components
Specified 0.5-A Output Current
TTL Shutdown Capability, Low-Power Standby Mode
Thermal Shutdown and Current-Limit Protection
Uses Readily Available Standard Inductors
Wide Input Voltage Range: 40 V, up to 60 V for HV Version
Part Information
LM2574M-ADJ/NOPB image
RoHS Compliant
The LM2574xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, 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 fixedfrequency oscillator. The LM2574xx series offers a high-efficiency replacement for popular three-terminal linear regulators. Because of its high efficiency, the copper traces on the printed-circuit board (PCB) are normally the only heat sinking needed. A standard series of inductors optimized for use with the LM2574 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies. Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50-μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
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Alternate Descriptions
SIMPLE SWITCHER 0.5A Reg LM2574M-ADJ RS Components
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Switch. Reg 0,5A 1,23-37V 45Vs SOL14 Schukat Electronic
8V to 40V, 500mA SIMPLE SWITCHER® buck converter with 4 external components Texas Instruments
Switching Regulator [Texas Instruments] LM2574M-ADJ/NOPB Switching Regulator Distrelec