Packaging information
| Package | Pins VSON (NHM) | 14 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the LM2676
- New product available:
- For faster time to market:
- Efficiency up to 94%
- Simple and easy to design with (using off-the-shelf external components)
- 150mΩ DMOS output switch
- 3.3V, 5V, 12V fixed output and adjustable (1.2V to 37V) versions
- 50µA standby current when switched OFF
- ±2% maximum output tolerance over full line and load conditions
- 8V to 40V wide input voltage range
- 260kHz fixed frequency internal oscillator
- –40 to 125°C operating junction temperature range
- Create a custom design using the LM2676 with the WEBENCH® Power Designer
Description for the LM2676
The LM2676 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (> 90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3V, 5V, and 12V and an adjustable output version.
The SIMPLE SWITCHER power converter concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2676 are available from several manufacturers to greatly simplify the design process.
The LM2676 series also has built-in thermal shutdown, current limiting, and an ON and OFF control input that can power down the regulator to a low 50µA quiescent current standby condition. The output voltage is specified to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.