LM2594DADJR2G DC-DC Power Conversion by ON Semiconductor

Buck Regulator, Switching, 0.5 A

Status: Active
Series: LM2594
RoHS: Compliant
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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.

Prices starting from US$0.93


Distributor Starting From Stock
Logo for Future Electronics Future Electronics US$0.96
25,000
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Logo for Avnet America Avnet America US$0.93
2,500
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Logo for Newark Electronics Newark Electronics US$1.33
2,465
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Logo for element14 element14 US$1.60
2,465
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Logo for Farnell Farnell US$1.43
2,465
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Logo for Avnet Asia Avnet Asia US$0.97
-
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Logo for Schukat Electronic Schukat Electronic US$1.12
-
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Logo for Avnet Silica Avnet Silica -
-
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Features

Adjustable output voltage range, 1.2V to 37V +/-4% max over line and load
Available in TO-220 and D2PAK packages
Guaranteed 0.5A output load current
Input voltage range up to 40V
Excellent line and load regulation specifications
150 kHz fixed frequency internal oscillator
TTL shutdown capability
Low power standby mode, Iq typically 80 µA
Uses readily available standard inductors
Thermal shutdown and current limit
Benefits
Flexible to configure for different output voltages and applications
Different mounting options
High power density designs
Can be used with several input voltage supplies (+12V, +24V, +36V)
Provides a stable power supply
No external component required to set frequency
Easy to implement low power modes
Power saving mode
Quick and easy implementation
Additional protection against faults
Applications
Simple high-efficiency step-down (buck) regulator
Positive to negative converter
End Products
On-card switching regulators
LCD-TV SMPS

Specifications

Description LM2594
Compliance Pb-free Halide free
Topology Step-Down
Control Mode Voltage Mode
VCC Min (V) 4.5
VCC Max (V) 40
VO Typ (V) 1.23
IO Typ (A) 0.5
Efficiency (%) 85
fSW Typ (kHz) 150
Package Type SOIC-8

Alternative Descriptions

LM2594 Series 40 V 165 kHz 0.5 A SMT Step-Down Switching Regulator - SOIC-8 | Future Electronics
Conv DC-DC Single Step Down 4.5V to 40V 8-Pin SOIC N T/R | Avnet America
Switching Regulator, Buck, Adjustable, 150Khz, Soic-8 | Newark Electronics
SWITCHING REGULATOR, BUCK, ADJUSTABLE, 150KHZ, SOIC-8 | element14
Sw. Regulator 0.5A Adj. Step-Down SOIC8 | RS
Buck-Schaltr. Adj 500mA 4,5-40Vi SO8 | Schukat Electronic


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM2594DADJR2G?

Additional datasheets, footprints and schematics for LM2594DADJR2G are listed on our Part Details page. You can also find images and similar parts to LM2594DADJR2G on this page.

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What category does LM2594DADJR2G fall under?

The LM2594DADJR2G is listed under Power Management > DC-DC Power Conversion > Converters.

Can I view similar or alternative parts?

You can view similar parts to LM2594DADJR2G when available in the Converters range under the specifications section at the bottom of the details page.

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Is the LM2594DADJR2G RoHS compliant?

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

Which authorised distributors for LM2594DADJR2G have stock available?

Authorised distributors including Future Electronics, Avnet America, Newark Electronics, element14 and Farnell have stock available or on a lead time for LM2594DADJR2G.

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