LM2577SX-ADJ/NOPB | Texas Instruments
IC REG BST FLYBACK ADJ 3A TO263LM2577SX-ADJ/NOPB
NCNR (non cancelable / non returnable)
Step-Up Voltage Regulator, LM2577SX-ADJ/NOPB, Texas Instruments
The LM2577SX-ADJ/NOPB regulator is a monolithic integrated circuit that provides all the active function for a step-down (buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. Requiring a minimum number of external component, this regulator is simple to use and includes fault protection and a fixed-frequency oscillator. The LM2577SX-ADJ/NOPB offers a high-efficiency replacement for a popular three-terminal linear regulator. It substantially reduces the size of the heat sink, and in some cases no heat sink is required.
Features
- Requires only four external components
- 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
Applications
- Simple Boost Regulator
- Flyback and Forward Regulators
- Multiple-output Regulator
| Filter | Property | Value |
|---|---|---|
| Enclosure | DDPAK/TO-263 | |
| Assembly | SMD | |
| Input voltage AC | 3.5-40 V | |
| Output voltage DC | 11.6-12.4 V | |
| Output current | 3 A | |
| min. operating temperature | -40 °C | |
| max. operating temperature | 125 °C | |
| Input voltage | 40 V |
| Property | Value |
|---|---|
| Customs tariff number | 85423990 |
| MSL | MSL 3 |
| Country of origin | DE |
| Property | Value |
|---|---|
| SVHC free | Yes |
| Date of RoHS guidelines | 3/31/15 |
| RoHS conform | Yes |