Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
Product Details:
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Adjustable Output Versions: | 3.3V, 5V, 12V | Adjustable Version Output Voltage Range,: | 1.2V To 37V |
---|---|---|---|
Package: | SOIC And PDIP-8 Package | Output Current: | Ensured 0.5A |
Input Voltage Range: | Up To 60V | ||
High Light: | circuit board ic,electronic chip board |
LM2594/LM2594HV
SIMPLE SWITCHER® Power Converter
150 kHz 0.5A Step-Down Voltage Regulato
FEATURES
• 3.3V, 5V, 12V, and Adjustable Output Versions
• Adjustable Version Output Voltage Range,
1.2V to 37V (57V for the HV Version)±4% Max
Over Line and Load Conditions
• Available in 8-pin Surface Mount SOIC and PDIP-8 Package
• Ensured 0.5A Output Current
• Input Voltage Range up to 60V
• Requires only 4 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
Typical Application
(Fixed Output Voltage Versions)
Connection Diagrams and Order Information
*No internal connection, but should be soldered to pc board for best heat transfer.
‡Patent Number 5,382,918.
DESCRIPTION
The LM2594/LM2594HV series of regulators are monolithic integrated circuits that provide all the
active functions for a step-down (buck) switching regulator, capable of driving a 0.5A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V and an adjustable output version, and are packaged in a 8-lead PDIP and a 8-lead 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 LM2594/LM2594HV series operates at a switching frequency of 150 kHz thus allowing smaller with lower frequency switching regulators. Because of its high efficiency, the copper traces on the printed circuit board are normally the only heat sinking needed.
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