Description
The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed frequency oscillator. The LM2596 series operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be required with lower frequency switching regulators. Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin TO-263 surface mount package.
Technical Specification:
- Input Voltage (V):4 ~ 40 V
- Output Voltage(V):3 ~ 35V
- Output Current (A): 3A
- Conversion efficiency: 92%(highest)
- Switching frequency: 150 KHz
- Output ripple: 30mA (maximum)
- Load Regulation: ± 0.5%
- Voltage Regulation: ± 0.5%
- Dynamic Response speed: 5% 200uS
- Operating Temperature (°C): -40 to 90
- Size: 40mm*20mm (L*W)
Features:
- Requires only four external components
- Excellent line and load regulation specifications
- 150-kHz Fixed-frequency internal oscillator
- TTL shutdown capability
- Uses readily available standard inductors
- Thermal shutdown and current-limit protection
Applications:
- Appliances
- Grid infrastructure
- EPOS
- Home theater