LM2676是TI公司的一款转换器（集成开关）产品，LM2676是SIMPLE SWITCHER? 8V 至 40V、3A 低组件数降压稳压器，本页介绍了LM2676的产品说明、应用、特性等，并给出了与LM2676相关的TI元器件型号供参考。
LM2676 - SIMPLE SWITCHER? 8V 至 40V、3A 低组件数降压稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - TI公司（Texas Instruments，德州仪器）
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 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/OFF control input that can power down the regulator to a low 50μA quiescent current standby condition. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.
- Efficiency Up to 94%
- Simple and Easy to Design with (Using Off-The-Shelf External Components)
- 150 mΩ DMOS Output Switch
- 3.3V, 5V and 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
- Wide Input Voltage Range: 8V to 40V
- 260 KHz Fixed Frequency Internal Oscillator
- −40 to +125°C Operating Junction Temperature Range
SIMPLE SWITCHER is a trademark of Texas Instruments. Switchers Made Simple is a trademark of Texas Instruments.
