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LM2576DP-5.0

Description
Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable (Fixed) Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative step-down chip, 3A, 52KHz, fixed output: 5V, Vin :7.0V~40V
CategoryPower/power management    DC - DC chip   
File Size405KB,11 Pages
ManufacturerHTC Korea(TAEJIN Technology )
Websitehttp://www.htckorea.co.kr/
Download Datasheet Parametric Compare View All

LM2576DP-5.0 Overview

Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable (Fixed) Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative step-down chip, 3A, 52KHz, fixed output: 5V, Vin :7.0V~40V

LM2576DP-5.0 Parametric

Parameter NameAttribute value
Output voltage (minimum/fixed)1.23V
Output voltage (maximum)37V
Can output current3A
Switching operating frequency52kHz
Output typeAdjustable (Fixed)
Number of output voltage channels1
Minimum input voltage-
Maximum input voltage40V
Power topologyBuck
Synchronous rectification or notNo
Function typeStep-Down
Output configurationPositive or Negative
3A, 52kHz, Step-Down Switching Regulator
FEATURES
3.3V, 5.0V, 12V and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.23 to 37V
+/- 4% AG10Maximum Over Line and Load Conditions
Guaranteed 3.0A Output Current
Wide Input Voltage Range
Requires Only 4 External Components
52kHz Fixed Frequency Internal Oscillator
TTL Shutdown Capability, Low Power Standby Mode
High Efficiency
Uses Readily Available Standard Inductors
Thermal Shutdown and Current Limit Protection
Moisture Sensitivity Level 3 for SMD packages
SOP8-PP PKG
LM2576
TO-220 PKG
TO-263 PKG
APPLICATION
Simple High-Efficiency Step-Down(Buck) Regulator
Efficient Pre-Regulator for Linear Regulators
On-Card Switching Regulators
Positive to Negative Converter(Buck-Boost)
Negative Step-Up Converters
Power Supply for Battery Chargers
ORDERING INFORMATION
Device
LM2576DP-X.X
LM2576T-X.X
LM2576R-X.X
Marking
LM2576-X.X
LM2576-X.X
LM2576-X.X
Package
SOP8-PP
TO-220
TO-263
DESCRIPTION
The LM2576 series of regulators are monolithic integrated circuits ideally suited for easy and convenient
design of a step-down switching regulator (buck converter).
All circuits of this series are capable of driving a 3.0A load with excellent line and load regulation. These
devices are available in fixed output voltages of 3.3V, 5.0V, 12V and an adjustable output version.
These regulators were designed to minimize the number of external components to simplify the power supply
design. Standard series of inductors optimized for use with the LM2576 are offered by several different inductor
manufacturers.
Since the LM2576 converter is a switch-mode power supply, its efficiency is significantly higher in comparison
with popular three-terminal linear regulators, especially with higher input voltages.
In many cases, the power dissipated is so low that no heatsink is required or its size could be reduced
dramatically. 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. The LM2576
features include a guaranteed +/- 4% tolerance on output voltage within specified input voltages and output
load conditions, and +/-10% on the oscillator frequency (+/- 2% over 0˚C to 125˚C).
External shutdown is included, featuring 80㎂(typical) standby current. The output switch includes cycle-
bycycle current limiting, as well as thermal shutdown for full protection under fault conditions.
Dec 2011 – Rev. 1.3
-
1
-
HTC

LM2576DP-5.0 Related Products

LM2576DP-5.0 LM2576R-5.0 LM2576R-ADJ LM2576R-12 LM2576DP-ADJ LM2576R-3.3
Description Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable (Fixed) Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative step-down chip, 3A, 52KHz, fixed output: 5V, Vin :7.0V~40V Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative - Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative - Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable (Fixed) Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative - Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable (Fixed) Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative Buck chip, 3A, 52KHz, adjustable output, Vin: 7.0V~40V Output current: 3A Switch operating frequency: 52kHz Output type: Adjustable (Fixed) Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive or Negative -
Output voltage (minimum/fixed) 1.23V 1.23V 1.23V 1.23V 1.23V 1.23V
Output voltage (maximum) 37V 37V 37V 37V 37V 37V
Can output current 3A 3A 3A 3A 3A 3A
Switching operating frequency 52kHz 52kHz 52kHz 52kHz 52kHz 52kHz
Output type Adjustable (Fixed) Adjustable Adjustable Adjustable (Fixed) Adjustable (Fixed) Adjustable (Fixed)
Number of output voltage channels 1 1 1 1 1 1
Maximum input voltage 40V 40V 40V 40V 40V 40V
Power topology Buck Buck Buck Buck Buck Buck
Synchronous rectification or not No No No No No No
Function type Step-Down Step-Down Step-Down Step-Down Step-Down Step-Down
Output configuration Positive or Negative Positive or Negative Positive or Negative Positive or Negative Positive or Negative Positive or Negative
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