LTC1046
LTC1046 is Inductorless 5V to -5V Converter manufactured by Linear Technology.
“Inductorless” 5V to
- 5V Converter
+
Features s 50m A Output Current s Plug-In patible 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 50m A 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 = ± n VIN).
Designed to be pin-for-pin and functionally patible 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
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/LTC1044, ROUT =...