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LM2576BT Datasheet (PDF) - Micrel Semiconductor

LM2576BT Datasheet PDF - Micrel Semiconductor
Part # LM2576BT
Download  LM2576BT Download

File Size   64.3 Kbytes
Page   9 Pages
Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor
Description 52kHz Simple 3A Buck Regulator

LM2576BT Datasheet (PDF)

Go To PDF Page Download Datasheet
LM2576BT Datasheet PDF - Micrel Semiconductor

Part # LM2576BT
Download  LM2576BT Click to download

File Size   64.3 Kbytes
Page   9 Pages
Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor
Description 52kHz Simple 3A Buck Regulator

LM2576BT Datasheet (HTML) - Micrel Semiconductor

LM2576BT Datasheet HTML 1Page - Micrel Semiconductor LM2576BT Datasheet HTML 2Page - Micrel Semiconductor LM2576BT Datasheet HTML 3Page - Micrel Semiconductor LM2576BT Datasheet HTML 4Page - Micrel Semiconductor LM2576BT Datasheet HTML 5Page - Micrel Semiconductor LM2576BT Datasheet HTML 6Page - Micrel Semiconductor LM2576BT Datasheet HTML 7Page - Micrel Semiconductor LM2576BT Datasheet HTML 8Page - Micrel Semiconductor LM2576BT Datasheet HTML 9Page - Micrel Semiconductor

LM2576BT Product details

General Description

The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, or 12V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 3A load with excellent line and load regulation.



Features

• 3.3V, 5V, 12V, and adjustable output versions

• Voltage over specified line and load conditions:

  Fixed version: ±3% max. output voltage

  Adjustable version: ±2% max. feedback voltage

• Guaranteed 3A output current

• Wide input voltage range: 4V to 40V

• Wide output voltage range 1.23V to 37V

• Requires only 4 external components

• 52kHz fixed frequency internal oscillator

• Low power standby mode IQ typically < 200µA

• 80% efficiency (adjustable version typically > 80%)

• Uses readily available standard inductors

• Thermal shutdown and current limit protection

• 100% electrical thermal limit burn-in



Applications

• Simple high-efficiency step-down (buck) regulator

• Efficient pre-regulator for linear regulators

• On-card switching regulators

• Positive to negative converter (inverting Buck-Boost)

• Isolated Flyback Converter using minimum number of external components

• Negative Boost Converter




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