LM2575TV-3.3G DC-DC Power Conversion by ON Semiconductor

Buck Regulator, Switching, Adjustable Output Voltage, 1.0 A

Semiconductors - ICs
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Status: Active
Series: LM2575
RoHS: Compliant
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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.

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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
On-Card Switching Regulators
Negative Step-Up Converters
End Products
Efficient Pre-Regulator for Linear Regulators
Positive to Negative Converters (Buck-Boost)
Power Supply for Battery Chargers

Specifications

Description LM2575, 3.3 V
Compliance Pb-free Halide free
Topology Step-Down
Control Mode Voltage Mode
VCC Min (V) 7
VCC Max (V) 40
VO Typ (V) 3.3
IO Typ (A) 1
Efficiency (%) 85
fSW Typ (kHz) 52
Package Type TO-220-5

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Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM2575TV-3.3G?

Additional datasheets, footprints and schematics for LM2575TV-3.3G are listed on our Part Details page. You can also find images and similar parts to LM2575TV-3.3G on this page.

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What category does LM2575TV-3.3G fall under?

The LM2575TV-3.3G is listed under Power Management > DC-DC Power Conversion > Converters.

Can I view similar or alternative parts?

You can view similar parts to LM2575TV-3.3G when available in the Converters range under the specifications section at the bottom of the details page.

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Is the LM2575TV-3.3G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

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