Features: Pin Compatible with 7660, High Frequency Performance DC-to-DC ConverterLow Cost, Two Low Value External Capacitors Required ...................(1.0µF) Converts +5V Logic Supply to ±5V System Wide Input Voltage Range .................... 1.5V to 10V Voltage Conversion ................
TCA7660: Features: Pin Compatible with 7660, High Frequency Performance DC-to-DC ConverterLow Cost, Two Low Value External Capacitors Required ...................(1.0µF) Converts +5V Logic Supply to ±...
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I/O Expanders, Repeaters & Hubs Low Vltg 8B I2C I/O Expander
Supply Voltage ............................... ....................... +10.5V
LV and OSC Inputs
Voltage (Note 1) .............................. 0.3V to (V+ + 0.3V)
for V+ < 5.5V
(V+ 5.5V) to (V+ + 0.3V)
for V+ > 5.5V
Current Into LV (Note 1) ........................ 20µA for V+ > 3.5V
Output Short Duration (VSUPPLY 5.5V) ......... Continuous
Power Dissipation (TA 70°C) (Note 2)
SOIC .........................................................................470mW
Plastic DIP .................................................................730mW Operating Temperature Range
C Suffix ........................................................ 0°C to +70°C
E Suffix ................................................... 40°C to +85°C
Storage Temperature Range ................ 65°C to +150°C
Lead Temperature (Soldering, 10 sec) .................... +300°C
The TC7660H is a pin-compatible, high frequency upgrade to the Industry standard TC7660 charge pump voltage
converter. It converts a +1.5V to +10V input to a corresponding 1.5V to 10V output using only two lowcost capacitors, eliminating inductors and their associated cost, size and EMI.
The TC7660H operates at a frequency of 120kHz (versus 10kHz for the TC7660), allowing the use of 1.0µF external capacitors. Oscillator frequency can be reduced (for lower supply current applications) by connecting an external capacitor from OSC to ground.
The TC7660H is available in 8-pin DIP and small outline (SOIC) packages in commercial and extended temperature ranges.