LTC1144CN8 Switched-Capacitor Wide Input Range Voltage Converter with Shutdown

LTC1144CN8
Switched-Capacitor Wide Input Range Voltage Converter with Shutdown

FEATURES
■ 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: 120Ω Maximum
■ Power Shutdown to 8µA with SHDN Pin
■ Open Circuit Voltage Conversion Efficiency: 99.9% Typical
■ Power Conversion Efficiency: 93% Typical
■ Easy to Use
APPLICATIONS
■ Conversion of 15V to ±15V Supplies
■ Inexpensive Negative Supplies
■ Data Acquisition Systems
■ High Voltage Upgrade to LTC1044 or 7660
■ Voltage Division and Multiplications
■ Automotive Applications
■ Battery Systems with Wall Adapter/Charger
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V+) (Transient) .............................. 20V
Supply Voltage (V+) (Operating) ............................. 18V
Input Voltage on Pins 1, 6, 7
    (Note 2) ............................ –0.3V < VIN < (V+) + 0.3V
Output Short-Circuit Duration
V+ ≤ 10V .................................................... Indefinite
V + ≤ 15V ........................................................ 30 sec
V + ≤ 20V ............................................. Not Protected
Power Dissipation ............................................. 500mW
Operating Temperature Range
  LTC1144C................................................ 0°C to 70°C
  LTC1144I............................................ – 40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
TYPICAL PERFORMANCE CHARACTERISTICS




 

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