LM2576HVSX-ADJ/NOPB by Texas Instruments | DC to DC Converter | Avnet ASIA
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LM2576HVSX-ADJ/NOPB

Texas Instruments

Conv DC-DC Single Inv/Step Down 4V to 60V 6-Pin(5+Tab) TO-263 T/R

Manufacturer Part #: LM2576HVSX-ADJ/NOPB

Alternate Part #: LM2576HVSX-ADJ/NOPB


legend RoHS Compliant

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Information

The LM2576HV-ADJ series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, 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 fixed-frequency oscillator.

The LM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some cases no heat sink is required.

A standard series of inductors optimized for use with the LM2576 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.

Key Features

  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,1.23V to 37V (57V for HV Version) ±4% Max Over Line and Load Conditions
  • Specified 3A Output Current
  • Wide Input Voltage Range, 40V Up to 60V for HV Version
  • Requires Only 4 External Components
  • 52 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability, Low Power Standby Mode
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • P+ Product Enhancement Tested

Technical Attributes

Description
Value
Find similar Parts
Type
Inverting|Step Down
Operating Temperature
-40 to 125 °C
MSL Level
3
Number of Outputs
1
Product Dimensions
10.16 x 8.64 x 4.57 mm
Max Processing Temp
245
Maximum Input Voltage
60 V
Maximum Output Current
3 A
Switching Frequency
47 to 58 kHz
Operating Supply Voltage
4 to 60 V
Pin Count
6
Mounting
Surface Mount
Lead Finish
Tin
Minimum Input Voltage
4 V
Output Type
Adjustable
Supplier Package
TO-263
Switching Regulator
Yes
Efficiency
77 %
Output Voltage
1.23 to 57 V

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8542390000"
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101

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