LTC660 100mA CMOS Voltage Converter
The LTC®660 is a monolithic CMOS switched-capacitor voltage converter. It performs supply voltage conversion from positive to negative from an input range of 1.5V to 5.5V, resulting in complementary output voltages of �1.5V to ±5.5V. It also performs a doubling at an input voltage range of 2.5V to 5.5V, resulting in a doubled output voltage of 5V to 11V. Only two external capacitors are needed for the charge pump and charge reservoir functions. The converter has an internal oscillator that can be overdriven by an external clock or slowed down when connected to a capacitor. The oscillator runs at a 10kHz frequency when unloaded. A higher frequency outside the audio band can also be obtained if the BOOST pin is tied to V+. The LTC660 contains an internal oscillator, divide-by-two, voltage level shifter and four power MOSFETs
产品特点 Features
- Simple Conversion of 5V to -5V Supply
- Output Drive: 100mA
- ROUT: 6.5 ohms (0.65V Loss at 100mA)
- Boost Pin (Pin 1) for Higher Switching Frequency
- Inverting and Doubling Modes
- Minimum Open Circuit Voltage Conversion Efficiency: 99%
- Typical Power Conversion Efficiency with a 100mA Load: 88%
- Easy to Use
参数
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应用
- Conversion of 5V to ±5V Supplies
- Inexpensive Negative Supplies
- Data Acquisition Systems
- High Current Upgrade to LTC1044 or 7660
典型应用图
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LTC660 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) * |
| LTC660CN8 |
PDIP |
8 |
C |
$3.33 |
$2.75 |
| LTC660CN8#PBF |
PDIP |
8 |
C |
$3.33 |
$2.75 |
| LTC660CS8 |
SO |
8 |
C |
$3.67 |
$3.00 |
| LTC660CS8#PBF |
SO |
8 |
C |
$3.67 |
$3.00 |
| LTC660CS8#TR |
SO |
8 |
C |
|
$3.06 |
| LTC660CS8#TRPBF |
SO |
8 |
C |
|
$3.06 |
LTC660 数据手册及相关资料下载
- 数据手册(英文) : LTC660 - 100mA CMOS Voltage Converter.PDF
- 可靠性数据 : R302 Reliability Data .PDF
