LTC1046

LTC1046 “Inductorless” 5V to – 5V Converter + U U FEATURES s 50mA Output Current s Plug-In Compatible with ICL7660/LTC1044 s ROUT = 35Ω Maximum s 300µA Maximum No Load Supply Current at 5V s Boost Pin (Pin 1) for Higher Switching Frequency s 97% Minimum Open-Circuit Voltage Conversion Efficiency s 95% Minimum Power Conversion Efficiency s Wide Operating Supply Voltage Range: 1.5V to 6V s Easy to Use s Low Cost U APPLICATIO S s Conversion of 5V to ± 5V Supplies s Precise Voltage Division, VOUT = VIN/2 s Supply Splitter, VOUT = ± VS/2 DESCRIPTIO The LTC®1046 is a 50mA monolithic CMOS switched capacitor voltage converter. It plugs in for the ICL7660/ LTC1044 in 5V applications where more output current is needed. The device is optimized to provide high current capability for input voltages of 6V or less. It trades off operating voltage to get higher output current. The LTC1046 provides several voltage conversion functions: the input voltage can be inverted (VOUT = – VIN), divided (VOUT = VIN/2) or multiplied (VOUT = ± nVIN). Designed to be pin-for-pin and functionally compatible with the ICL7660 and LTC1044, the LTC1046 provides 2.5 times the output drive capability. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO Generating – 5V from 5V + 10µF LTC1046 1 BOOST V+ 8 2 CAP + OSC 7 3 GND LV 6 4 CAP – VOUT 5 5V INPUT –5V OUTPUT 10µF 1046 TA01 OUTPUT VOLTAGE (V) Output Voltage vs Load Current for V + = 5V –5 –4 ICL7660/LTC...