LTC3405A 1.5MHz, 300mA Synchronous Step-Down Regulator in ThinSOT™
The LTC®3405A is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 20µA and drops to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3405A ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.
Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The LTC3405A is specifically designed to work well with ceramic output capacitors, achieving very low output voltage ripple and a small PCB footprint.
The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.8V feedback reference voltage. The LTC3405A is available in a low profile (1mm) ThinSOT package.
For fixed 1.5V and 1.8V output versions, refer to the LTC3405A-1.5/LTC3405A-1.8 data sheet.
Protected by U.S. Patents, including 6580258, 5481178
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LTC3405A 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) * |
| LTC3405AES6 | SOT | 6 | E | $2.37 | |
| LTC3405AES6#PBF | SOT | 6 | E | $2.37 | |
| LTC3405AES6#TR | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6#TRM | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6#TRMPBF | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6#TRPBF | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6-1.375 | SOT | 6 | E | $2.37 | |
| LTC3405AES6-1.375#PBF | SOT | 6 | E | $2.37 | |
| LTC3405AES6-1.375#TR | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6-1.375#TRM | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6-1.375#TRMPBF | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6-1.375#TRPBF | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6-1.5 | SOT | 6 | E | $2.37 | |
| LTC3405AES6-1.5#PBF | SOT | 6 | E | $2.37 | |
| LTC3405AES6-1.5#TR | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6-1.5#TRM | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6-1.5#TRMPBF | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6-1.5#TRPBF | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6-1.8 | SOT | 6 | E | $2.37 | |
| LTC3405AES6-1.8#PBF | SOT | 6 | E | $2.37 | |
| LTC3405AES6-1.8#TR | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405AES6-1.8#TRM | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6-1.8#TRMPBF | SOT | 6 | E | $2.37 | $1.69 |
| LTC3405AES6-1.8#TRPBF | SOT | 6 | E | $2.37 | $1.67 |
| LTC3405ES6 | SOT | 6 | E | $1.96 | |
| LTC3405ES6#PBF | SOT | 6 | E | $1.96 | |
| LTC3405ES6#TR | SOT | 6 | E | $1.96 | $1.67 |
| LTC3405ES6#TRM | SOT | 6 | E | $1.96 | $1.69 |
| LTC3405ES6#TRMPBF | SOT | 6 | E | $1.96 | $1.69 |
| LTC3405ES6#TRPBF | SOT | 6 | E | $1.96 | $1.67 |
LTC3405A 数据手册及相关资料下载
- 数据手册(英文) : LTC3405A - 1.5MHz, 300mA Synchronous Step-Down Regulator in ThinSOT.PDF
- 数据手册(中文) : LTC3405A - 1.5MHz, 300mA Synchronous Step-Down Regulator in ThinSOT™.PDF
- 设计要点 (英文) : DN256 - 1.4MHz Switching Regulator Draws Only 10µA Supply Current.PDF
- 可靠性数据 : R415 Reliability Data .PDF
