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

Description: The LM2575 series of Buck Switching Regulators are...
  • 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
    Product Change Notification
    Availability and Samples
    NCV2575D2T-12G
  • Status: Last Shipments
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A, 12 V
  • Package Type: D2PAK-5
  • Package Case Outline: 936A-02
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 50
  • NCV2575D2T-12R4G
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A, 12 V
  • Package Type: D2PAK-5
  • Package Case Outline: 936A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 800
  • Inventory

  • Market Leadtime (weeks):Contact Factory
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  • NCV2575D2T-5G
  • Status: Last Shipments
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A, 5.0 V
  • Package Type: D2PAK-5
  • Package Case Outline: 936A-02
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 50
  • NCV2575D2T-5R4G
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A, 5.0 V
  • Package Type: D2PAK-5
  • Package Case Outline: 936A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 800
  • NCV2575D2T-ADJG
  • Status: Last Shipments
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A, Adjustable 1.23 V to 37 V
  • Package Type: D2PAK-5
  • Package Case Outline: 936A-02
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 50
  • NCV2575D2TADJR4G
  • Status: Last Shipments
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: Buck Converter, Switching Regulator, Adjustable Output Voltage, 1.0 A, Adjustable 1.23 V to 37 V
  • Package Type: D2PAK-5
  • Package Case Outline: 936A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 800
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Current/Voltage Mode 
  • VCC Min (V): 4.75 
  • VCC Max (V): 40 
  • VO Typ (V): 12 
  • IO Typ (A):
  • Efficiency (%): 85 
  • fSW Typ (kHz): 52 
  • Package Type: D2PAK-5 
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