LM2678SX-ADJ/NOPB | Texas Instruments
IC REG BUCK ADJ 5A TO263LM2678SX-ADJ/NOPB
NCNR (non cancelable / non returnable)
Step-Down Voltage Regulator, LM2678SX-ADJ/NOPB, Texas Instruments
The LM2678SX-ADJ/NOPB regulator is a monolithic integrated circuit that provides all of the active functions for a step-down (buck) switching regulator capable of driving up to a 5 A load with excellent line and load regulation characteristics. High efficiency (> 90%) is obtained through the use of a low ON-resistance DMOS power switch. The Simple Switcher power converter concept provides a complete design using a minimum number of external components. A high fixed-frequency oscillator (260 kHz) allows the use of a physically smaller-sized component. A standard inductor for use with the LM2678SX-ADJ/NOPB is available from a manufacturer to greatly simplify the design process. The LM2678SX-ADJ/NOPB regulator also has built-in thermal shutdown, current limiting, and an ON/OFF control input that can power down the regulator to a low 50 μA quiescent current standby condition. The output voltage is specified to a ±2% tolerance. The clock frequency is controlled within a ±11% tolerance.
Features
- Efficiency up to 92%
- Simple and easy to design using off-the-shelf external components
Applications
- Simple-to-design, high efficiency (> 90%) stepdown switching regulators
- Efficient system preregulator for linear voltage regulators
- Battery chargers
| Filter | Property | Value |
|---|---|---|
| Enclosure | DDPAK/TO-263 | |
| Assembly | SMD | |
| Input voltage AC | 8-40 V | |
| Output voltage DC | 1.21-37 V | |
| Output current | 5 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 | GB |
| Property | Value |
|---|---|
| SVHC free | Yes |
| Date of RoHS guidelines | 3/31/15 |
| RoHS conform | Yes |