LT1614 Inverting 600kHz Switching Regulator
The LT™1614 is a fixed frequency, inverting mode switching reglator that operates from an input voltage as low as 1V. Utilizing a low noise topology, the LT1614 can generate a negative output down to �24V from a 1V to 5V input. Fixed frequency switching ensures a clean output free from low frequency noise. The device contains a low-battery detector with a 200mV reference and shuts down to less than 10µA. No load quiescent current of the LT1614 is 1mA and the internal NPN power switch handles a 500mA current with a voltage drop of just 295mV. High frequency switching enables the use of small inductors and capacitors. Ceramic capacitors can be used in many applications, eliminating the need for bulky tantalum types. The LT1614 is available in 8-lead MSOP or SO packages
产品特点 Features
- Better Regulation Than a Charge Pump
- 0.1 Ohm Effective Output Impedance
- ±5V at 200mA from a 5V Input
- 600kHz Fixed Frequency Operation
- Operates with VIN as Low as 1V
- 1mA Quiescent Current
- Low Shutdown Current: 10µA
- Low-Battery Detector
- Low VCESAT Switch: 295mV at 500mA
参数
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应用
- MR Head Bias
- LCD Bias
- GaAs FET Bias
- Positive-to-Negative Conversion
典型应用图
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LT1614 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) * |
| LT1614CMS8 |
MSOP |
8 |
C |
$3.10 |
$2.65 |
| LT1614CMS8#PBF |
MSOP |
8 |
C |
$3.10 |
$2.65 |
| LT1614CMS8#TR |
MSOP |
8 |
C |
|
$2.71 |
| LT1614CMS8#TRPBF |
MSOP |
8 |
C |
|
$2.71 |
| LT1614CS8 |
SO |
8 |
C |
$2.85 |
$2.40 |
| LT1614CS8#PBF |
SO |
8 |
C |
$2.85 |
$2.40 |
| LT1614CS8#TR |
SO |
8 |
C |
|
$2.46 |
| LT1614CS8#TRPBF |
SO |
8 |
C |
|
$2.46 |
| LT1614IMS8 |
MSOP |
8 |
I |
$3.55 |
$3.00 |
| LT1614IMS8#PBF |
MSOP |
8 |
I |
$3.55 |
$3.00 |
| LT1614IMS8#TR |
MSOP |
8 |
I |
|
$3.06 |
| LT1614IMS8#TRPBF |
MSOP |
8 |
I |
|
$3.06 |
| LT1614IS8 |
SO |
8 |
I |
$3.45 |
$2.90 |
| LT1614IS8#PBF |
SO |
8 |
I |
$3.45 |
$2.90 |
| LT1614IS8#TR |
SO |
8 |
I |
|
$2.96 |
| LT1614IS8#TRPBF |
SO |
8 |
I |
|
$2.96 |
LT1614 数据手册及相关资料下载
- 数据手册(英文) : LT1614 - Inverting 600kHz Switching Regulator.PDF
- 应用指南 (英文) : AN84 - linear Technology Magazine Circuit Collection, Volume IV .PDF
- 可靠性数据 : R303 Reliability Data .PDF
