LM2574N-12G DC-DC Power Conversion by ON Semiconductor

Buck Regulator, Switching, Adjustable Output Voltage, 0.5 A

Status: Active
Series: LM2574
RoHS: Compliant
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The LM2574 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 0.5 A loadwith excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version. The 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 LM2574 are offered by several different inductor manufacturers. Since the LM2574 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 LM2574 regulator is so low, that no heatsink is required or its size could be reduced dramatically. The LM2574 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.

Prices starting from US$0.92


Distributor Starting From Stock
Logo for Schukat Electronic Schukat Electronic US$1.27
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Logo for Newark Electronics Newark Electronics US$1.03
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Logo for Future Electronics Future Electronics US$1.02
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Logo for Avnet America Avnet America US$0.98
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Logo for RS Americas RS Americas US$1.99
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Logo for element14 element14 US$1.14
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Logo for Farnell Farnell US$0.92
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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%
Guaranteed 0.5 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
Applications
Efficient Pre-Regulator for Linear Regulators
Power Supply for Battery Chargers
Automotive NCV Version Available
End Products
On-Card Switching Regulators
Simple and High-Efficiency Step-Down (Buck) Regulators

Specifications

Description LM2574, 12 V
Compliance Pb-free Halide free
Topology Step-Down
Control Mode Voltage Mode
VCC Min (V) 7
VCC Max (V) 40
VO Typ (V) 12
IO Typ (A) 0.5
Efficiency (%) 85
fSW Typ (kHz) 52
Package Type PDIP-8

Alternative Descriptions

Buck-Schaltr. 12V 500mA 4,75-40Vi DIP8 | Schukat Electronic
Sw. Regulator 0.5A 12V Step-Down PDIP8 | RS
Ic,smps Controller,voltage-Mode,bipolar,dip,8Pin,plastic |Onsemi LM2574N-12G | Newark Electronics
LM2574 Series 40 V 0.5 A 52 kHz Step-Down Switching Regulator - PDIP-8 | Future Electronics
Conv DC-DC Single Step Down 4.75V to 40V 8-Pin PDIP Rail | Avnet America
LM2574N-12G Switching Regulator 500mA, Maximum of 12 V, 8-Pin PDIP | ON Semiconductor LM2574N-12G | RS Americas
SWITCH REG, STEP DOWN, 0.5A, 12V | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM2574N-12G?

Additional datasheets, footprints and schematics for LM2574N-12G are listed on our Part Details page. You can also find images and similar parts to LM2574N-12G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LM2574N-12G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LM2574N-12G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LM2574N-12G fall under?

The LM2574N-12G is listed under Power Management > DC-DC Power Conversion > Converters.

Can I view similar or alternative parts?

You can view similar parts to LM2574N-12G when available in the Converters range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LM2574N-12G you can contact the distributor directly for product support, shipping queries etc.

Is the LM2574N-12G RoHS compliant?

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

Which authorised distributors for LM2574N-12G have stock available?

Authorised distributors including Schukat Electronic, RS, Newark Electronics, Future Electronics and Avnet America have stock available or on a lead time for LM2574N-12G.

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