The LM2595 regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. The device is available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. Requiring a minimum number of external components, the regulator is simple to use and includes internal frequency compensation and a fixed-frequency oscillator.
The LM2595 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 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package. Typically, for output voltages less than 12V, and ambient temperatures less than 50˚C, no heat sink is required.
LM2595 Pinout
LM2595 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | OUT | Output Pin |
| 2 | Vin | Input Voltage Pin |
| 3 | GND | Ground Pin |
| 4 | FB | FeedBack Pin |
| 5 | ON’/OFF | Complement On Pin/Off Pin |
LM2595 Key Features
- Guaranteed 1A output load current
- Input voltage range up to 40V
- Requires only 4 external components
- Excellent line and load regulation specifications
- 150 kHz fixed frequency internal oscillator
- TTL shutdown capability
- Low power standby mode, IQ typically 85 µA
- High efficiency
- Uses readily available standard inductors
- Thermal shutdown and current limit protection
Application
- Simple high-efficiency step-down (buck) regulator
- Efficient pre-regulator for linear regulators
- On-card switching regulators
- Positive to negative converter
You can download this datasheet for LM2595 5V 1A Step-Down Voltage Regulator – Datasheet from the link given below:
