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Details for LM2576SX-3.3/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
LM2576SX-3.3/NOPB
Buy Directly from Texas Instruments (2865 in stock) $1.0500
DC/DC CONV BUCK 52KHZ TO-263-5
LM2576SX-3.3/NOPB image

LM2576SX-3.3/NOPB by Texas Instruments

DC/DC CONV BUCK 52KHZ TO-263-5
Features
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 3-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
LM2576SX-3.3/NOPB image
RoHS Compliant
Description
The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3-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 fault protection 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 ±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.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
4V
Input Voltage Max:
40V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
TO-263
No. of Pins:
5Pins
Output Current:
3A
Output Voltage Min:
3.234V
Output Voltage Max:
3.366V
Switching Frequency:
52kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
Output Voltage Nom.:
3.3V
Alternate Descriptions
Conv DC-DC Single Inv/Step Down 4V to 40V 6-Pin(5+Tab) TO-263 T/R Avnet America
Conv DC-DC Single Inv/Step Down 4V to 40V 6-Pin(5+Tab) TO-263 T/R Avnet Europe
SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator Texas Instruments