LM2594: Buck Regulator, Switching, 0.5 A
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The LM2594 series of Buck Switching Regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation.
Requiring a minimum number of external components, these Buck Switching Regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.
The LM2594 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 8-lead PDIP package and 8-lead SOIC surface mount package.
A standard series of inductors are available from several different manufacturers optimized for use with the LM2594 series. This feature greatly simplifies the design of switch-mode power supplies.
Other features include a guaranteed +/-4% tolerance on output voltage under specified input voltage and output load conditions, and +/-15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. See LM2596 for 3.0A and LM2595 for 1.0A.
Requiring a minimum number of external components, these Buck Switching Regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.
The LM2594 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 8-lead PDIP package and 8-lead SOIC surface mount package.
A standard series of inductors are available from several different manufacturers optimized for use with the LM2594 series. This feature greatly simplifies the design of switch-mode power supplies.
Other features include a guaranteed +/-4% tolerance on output voltage under specified input voltage and output load conditions, and +/-15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. See LM2596 for 3.0A and LM2595 for 1.0A.
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Applications | End Products | |
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Technical Documentation & Design Resources
Data Sheets (1) | Evaluation Board Documents (8) |
Package Drawings (2) | FAQ (1) |
Videos (1) |
Evaluation/Development Tool Information
Product | Status | Compliance | Short Description | Action | |
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LM2594APDBCKGEVB | Active |
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Step-Down Switching Regulator Evaluation Board | ||
LM2594ASCBCKGEVB | Active |
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Step-Down Switching Regulator Evaluation Board |
Availability & Samples
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Specifications
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Application Diagram
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Intaractive Block Diagram
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Case Outline |
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LM2594DADJG |
Obsolete ![]() |
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LM2594 | SOIC-8 | 751-07 | 1 | 260 | Tube | 98 | |||||||||
LM2594DADJR2G | Active |
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LM2594 | SOIC-8 | 751-07 | 1 | 260 | Tape and Reel | 2500 | $0.791 | ||||||||
LM2594PADJG |
Obsolete ![]() |
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LM2594 | PDIP-8 | 626-05 | NA | Tube | 50 |
Market Leadtime (weeks) | : | Contact Factory |
Market Leadtime (weeks) | : | Contact Factory |
PandS (2020-09-14 00:00) | : | >1K |
Market Leadtime (weeks) | : | Contact Factory |
Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
LM2594DADJR2G
$0.791
Pb
A
H
P
Active
Step-Down
Voltage Mode
4.5
40
1.23 to 37
0.5
85
150
SOIC-8
Application
Diagram - Block
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