Datasheet Linear Technology LTC1144 — 数据表

LTC1144
Switched-Capacitor
Wide Input Range
Voltage Converter
with Shutdown
Features Description Wide Operating Supply Voltage Range: 2V to 18V
Boost Pin (Pin 1) for Higher Switching Frequency
Simple Conversion of 15V to –15V Supply
Low Output Resistance: 120О© Maximum
Power Shutdown to 8ВµA with SHDN Pin
Open Circuit Voltage Conversion Efficiency:
99.9% Typical
n Power Conversion Efficiency: 93% Typical
n Easy to Use The LTCВ®1144 is a monolithic CMOS switched-capacitor
voltage converter. It performs supply voltage conversion
from positive to negative from an input range of 2V to
18V, resulting in complementary output voltages of –2V to
–18V. Only two noncritical external capacitors are needed
for the charge pump and charge reservoir functions. n n n n n n Applications n n n n n Conversion of 15V to В±15V Supplies
Inexpensive Negative Supplies
Data Acquisition Systems
High Voltage Upgrade to LTC1044 or 7660
Voltage Division and Multiplications …