LT1616 600mA, 1.4MHz Step-Down Switching Regulator in SOT-23
The LT®1616 is a current mode PWM step-down DC/DC converter with internal 0.6A power switch, packaged in a tiny 6-lead SOT-23. The wide input range of 3.6V to 25V makes the LT1616 suitable for regulating a wide variety of power sources, from 4-cell batteries and 5V logic rails to unregulated wall transformers and lead-acid batteries. Its high operating frequency allow the use of tiny, low cost inductors and ceramic capacitors. With its internal compensation eliminating additional components, a complete 400mA step-down regulator fits onto 0.15 square inches of PC board area. The constant frequency current mode PWM architecture and stable operation with ceramic capacitors results in lopw, predictable output ripple. Current limiting provides protection against shorted outputs. The low current (<1µA) shutdown provides complete output disconnect, enabling easy power management in battery-powered systems
产品特点 Features
- Wide Input Range: 3.6V to 25V
- 5V at 400mA from7V to 25V Input
- 3.3V at 400mA from 4.7V to 25V Input
- Fixed Frequency 1.4MHz Operation
- Uses Tiny Capacitors and Inductors
- Internally Compensated
- Low Shutdown Current: <1µA
- Low VCESAT Switch: 220mV at 300mA
- Tiny 6-Lead SOT-23 Package
参数
 |
应用
- Wall Transformer Regulation
- Local Logic Supply Conversion:
12V to 5V
12V or 5V to 3.3V, 2.5V or 1.8V
- Battery-Powered Equipement
- Distributed Supply Regulation
- Digital Cameras
典型应用图
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LT1616 订购信息和价格参考Package Variations and Pricing
| 器件型号 |
封装 |
引脚 |
温度 |
价格 (以 1 ~ 99 片为批量) |
价格 (以 1000 片为批量) * |
| LT1616CS5 |
SOT |
5 |
C |
$2.46 |
|
| LT1616CS5#PBF |
SOT |
5 |
C |
$2.46 |
|
| LT1616CS5#TR |
SOT |
5 |
C |
$2.46 |
$2.00 |
| LT1616CS5#TRM |
SOT |
5 |
C |
$2.46 |
$2.02 |
| LT1616CS5#TRMPBF |
SOT |
5 |
C |
$2.46 |
$2.02 |
| LT1616CS5#TRPBF |
SOT |
5 |
C |
$2.46 |
$2.00 |
LT1616 数据手册及相关资料下载
- 数据手册(英文) : LT1616 - 1.4MHz, Single Cell DC/DC Converter in 5-Lead SOT-23.PDF
- 设计要点 (英文) : DN268 - Tiny Buck Regulator Accepts Inputs from 3.6V to 25V and Eliminates Heat Sink.PDF
- 可靠性数据 : R303 Reliability Data .PDF
