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NCV2575: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A

Datasheet: 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator
Rev. 11 (492.0kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The LM2575 series of Buck Switching 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 1.0 A loadwith excellent line and load regulation. These devices are available in fixedoutput voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version.

This Buck Switching Regulator is designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2575 are offered by several different inductor manufacturers.

Since the LM2575 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 by the LM2575 regulator is so low, that no heatsink is required or its size could be reduced dramatically.

The LM2575 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 0C to 125C). External shutdown is included, featuring 80 uA typical standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
Features
 
  • 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range of 1.23 V to 37 V +/-4%
    Maximum Over Line and Load Conditions
  • Guaranteed 1.0 A Output Current
  • Wide Input Voltage Range: 4.75 V to 40 V
  • 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
  • Moisture Sensitivity Level (MSL) Equals 1
  • Pb-Free Packages are Available
Applications
  • Simple and High-Efficiency Step-Down (Buck) Regulators
  • Efficient Pre-Regulator for Linear Regulators
  • On-Card Switching Regulators
  • Positive to Negative Converters (Buck-Boost)
  • Negative Step-Up Converters
  • Power Supply for Battery Chargers
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCV2575D2T-12G Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV2575, 12 V D2PAK-5 936A-02 1 260 Tube 50  
NCV2575D2T-12R4G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV2575, 12 V D2PAK-5 936A-02 1 260 Tape and Reel 800 $1.0406
NCV2575D2T-5G Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV2575, 5.0 V D2PAK-5 936A-02 1 260 Tube 50  
NCV2575D2T-5R4G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV2575, 5.0 V D2PAK-5 936A-02 1 260 Tape and Reel 800 $1.9333
NCV2575D2T-ADJG Obsolete 
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV2575, Adjustable 1.23 V to 37 V D2PAK-5 936A-02 1 260 Tube 50  
NCV2575D2TADJR4G Obsolete
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV2575, Adjustable 1.23 V to 37 V D2PAK-5 936A-02 1 260 Tape and Reel 800  
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 8 to 12
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
NCV2575D2T-12R4G  
 $1.0406 
Pb
A
H
P
 Active   
Step-Down
Current/Voltage Mode
4.75
40
12
1
85
52
D2PAK-5
NCV2575D2T-5R4G  
 $1.9333 
Pb
A
H
P
 Active   
Step-Down
Current/Voltage Mode
4.75
40
5
1
85
52
D2PAK-5
Case Outlines
936A-02   
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