LTC1754-3.3 Micropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23
The LTC®1754 is a micropower charge pump DC/DC converter that produces a regulated output. The input voltage range is 2V to 4.4V for 3.3V output and 2.7V to 5.5V for 5V output. Extremely low operating current and a low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the LTC1754 ideally suited for small, battery-powered applications. The total component area of the application circuit shown below is only 0.052 inch². The LTC1754 operates as a Burst Mode™ switched capacitor voltage doubler to produce a regulated output. It has thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. The LTC1754 is available in a 6-pin SOT-23 package
产品特点 Features
- Ultralow Power: IIN = 13µA
- Regulated Output Voltage: 3.3V ±4%, 5V ±4%
- 5V Output Current: 50mA (VIN >/= 3.0V)
- 3.3V Output Current: 40mA (VIN >/=2.5V)
- No Inductors Needed
- Very Low Shutdown Current: <1µA
- Shutdown Disconnects Load from VIN
- Internal Oscillator: 600kHz
- Short-Circuit and Overtemperature Protected
- Ultrasmall Application Circuit: (0.052 Inch²)
- 6-Pin SOT-23 Package
参数
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应用
- SIM Interface Supplies for GSM Cellular Telephones
- White LED Power Supplies
- Li-Ion Battery Backup Supplies
- Handheld Computers
- Smart Card Readers
- PCMCIA Local 5V Supplies
典型应用图
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LTC1754-3.3 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) * |
| LTC1754ES6-3.3 |
SOT |
6 |
E |
$1.76 |
|
| LTC1754ES6-3.3#PBF |
SOT |
6 |
E |
$1.76 |
|
| LTC1754ES6-3.3#TR |
SOT |
6 |
E |
$1.76 |
$1.50 |
| LTC1754ES6-3.3#TRM |
SOT |
6 |
E |
$1.76 |
$1.52 |
| LTC1754ES6-3.3#TRMPBF |
SOT |
6 |
E |
$1.76 |
$1.52 |
| LTC1754ES6-3.3#TRPBF |
SOT |
6 |
E |
$1.76 |
$1.50 |
| LTC1754ES6-5 |
SOT |
6 |
E |
$1.76 |
|
| LTC1754ES6-5#PBF |
SOT |
6 |
E |
$1.76 |
|
| LTC1754ES6-5#TR |
SOT |
6 |
E |
$1.76 |
$1.50 |
| LTC1754ES6-5#TRM |
SOT |
6 |
E |
$1.76 |
$1.52 |
| LTC1754ES6-5#TRMPBF |
SOT |
6 |
E |
$1.76 |
$1.52 |
| LTC1754ES6-5#TRPBF |
SOT |
6 |
E |
$1.76 |
$1.50 |
LTC1754-3.3 数据手册及相关资料下载
- 数据手册(英文) : LTC1754-3.3/LTC1754-5 - Micropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23.PDF
- 设计要点 (英文) : DN231 - Tiny Regulators Drive White LED Backlights.PDF
- 可靠性数据 : R402 Reliability Data .PDF
