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onsemi | LM2594DADJR2G

Manufacturer Part #

LM2594DADJR2G

LM2594 Series 40 V 165 kHz 0.5 A SMT Step-Down Switching Regulator - SOIC-8

ECAD Model:
Mfr. Name: onsemi
Standard Pkg:
Product Variant Information section
Date Code: 2549
Product Specification Section
onsemi LM2594DADJR2G - Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 4.5V to 40V
Output Current-Max: 0.5A
Output Type: Adjustable
Switching Frequency-Max: 165kHz
Operating Temp Range: -40°C to +125°C
Duty Cycle-Max: 95%
Efficiency: 80%
No. of Outputs: 1
Quiescent Current: 10mA
Storage Temperature Range: -65°C to +150°C
Moisture Sensitivity Level: 1
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications
The LM2594 series regulators are monolithic integrated circuit ideally suited for easy and convenient design of a step-down switching regulator (buck converter). It is capable of driving a 0.5 A load with excellent line and load regulation. This device is available in adjustable output version. It is internally compensated to minimize the number of external components to simplify the power supply design. Since LM2594 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.

The LM2594 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 and 8-Lead Surface Mount packages. The other features include a guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring 50 A (typical) standby current. Self protection features include switch cycle-by-cycle current  limit for the output switch, as well as thermal shutdown for complete protection under fault conditions.

Key Features:

  • Adjustable Output Voltage Range 1.23 V - 37 V
  • Guaranteed 0.5 A Output Load Current
  • Wide Input Voltage Range up to 40 V
  • 150 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability
  • Low Power Standby Mode, typ 50 µA
  • Thermal Shutdown and Current Limit Protection
  • Internal Loop Compensation
  • Moisture Sensitivity Level (MSL) Equals 1
  • These are Pb-Free Devices

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
  • Efficient Pre-Regulator for Linear Regulators
  • On-Card Switching Regulators
  • Positive to Negative Converter (Buck-Boost)
  • Negative Step-Up Converters
  • Power Supply for Battery Chargers
Pricing Section
Global Stock:
2,500
USA:
2,500
On Order:Order inventroy details
5,000
Factory Stock:Factory Stock:
0
Factory Lead Time:
18 Weeks
Minimum Order:
2500
Multiple Of:
2500
Total
$2,137.50
USD
Quantity
Unit Price
2,500+
$0.855
Product Variant Information section