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The LM2577 is a monolithic integrated circuit that provides all of the power and control functions for step-up (boost), flyback, and forward converter switching regulator. The device is available in adjustable output voltage. Requiring a minimum number of external components, this regulator is cost-effective, and simple to use. Listed in this data sheet are a family of standard inductors and flyback transformers designed to work with these switching regulators.
LM2577 Pinout
LM2577 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | COMP: | Compensation Pin |
| 2 | FB | Feedback Pin |
| 3 | GND | Ground Pin |
| 4 | SW | Switch Pin |
| 5 | Vin | Input Pin |
LM2577 Key Features
- Wide input voltage range: 3.5V to 40V
- Current-mode operation for improved transient response, line regulation, and current limit
- 52 kHz internal oscillator
- Soft-start function reduces in-rush current during start-up
- Output switch protected by current limit, under-voltage lockout, and thermal shutdown
Application
- Simple boost regulator
- Flyback and forward regulators
- Multiple-output regulator
You can download this datasheet for LM2577 Adjustable Step-Up Voltage Regulator from the link given below:
