LM2594MX-5.0/NOPB 5V 500mA Step-Down Converter with Wide 4.5V-40V Input, 80% Efficiency, Low Standby Current Thermal Shutdown Easy-to-Use TO-263 Package and Stable Fixed Output

LM2594MX-5.0/NOPB 5V 500mA Step-Down Converter with Wide 4.5V-40V Input, 80% Efficiency, Low Standby Current Thermal Shutdown Easy-to-Use TO-263 Package and Stable Fixed Output

Features

• New product available:– LMR36506 3-V to 65-V 0.6-A ultra-small synchronous buck converter

• For faster time to market:– TPSM365R6 3-V to 65-V, 600-mA/300-mA synchronous buck power module

• 3.3-V, 5-V, 12-V, and adjustable output versions

• Adjustable version output voltage range: 1.2 V to 37 V (57-V for the HV version), ±4% maximum over line and load conditions

• Available in 8-pin surface-mount SOIC and 8-pin PDIP packages

• Ensured 0.5-A output current

• Input voltage range up to 60 V

• Requires only four external components

• 150-kHz fixed-frequency internal oscillator

• TTL shutdown capability

• Low power standby mode, IQ typically 85 μA

• High efficiency

• Uses readily-available standard inductors

• Thermal shutdown and current-limit protection

• Create a custom design using the LM2594HV with the WEBENCH® Power Designer

Applications

• Simple high-efficiency step-down (buck) regulator

• Efficient preregulator for linear regulators

• On-card switching regulators

• Positive-to-negative convertor

Description

The LM2594xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version, and are packaged in a 8-pin PDIP and a 8-pin surface-mount SOIC package.

Requiring a minimum number of external components, these regulators are simple to use and feature internal frequency compensation, a fixed frequency oscillator, and improved line and load regulation specifications.

The new product, LMR36506, offers reduced BOM cost, higher efficiency, and smaller solution size with many other features. See the Device Comparison Table to compare specs. Start WEBENCH Design with LMR36506.

INFORMATION

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