onsemi | LM2594DADJR2G

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