TC1240A

Input Voltage (V_IN to GND)
TC1240 .............................................. +4.5V, -0.3V
TC1240A............................................. +5.8V, -0.3V
Output Voltage (V_OUT to GND)
TC1240 ........................................ +9.0V, VIN -0.3V
TC1240A..................................... +11.6V, VIN -0.3V
Current at V_OUT Pin...........................................50 mA
Short-Circuit Duration: V_OUT to GND ............Indefinite
Thermal Resistance ........................................210/W
Power Dissipation (T_A = +25)........................600 mW
Operating Temperature Range................-40to +85
Storage Temperature (Unbiased) .........-65to +150

† Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.

The TC1240/TC1240A is a doubling CMOS charge pump voltage converter in a small 6-Pin SOT-23A package. The TC1240 doubles an input voltage that can range from +2.5V to +4.0V, while the TC1240A doubles an input voltage that can range from +2.5V to +5.5V. Conversion efficiency is typically >99%. Internal oscillator frequency is 160 kHz for both devices. The TC1240 and TC1240A have an active-high shutdown that limits the current consumption of the devices to less than 1 µA.

External component requirement is only two capacitors for standard voltage doubler applications. All other circuitry (including control, oscillator and power MOSFETs) are integrated on-chip. Typical supply current is 180 µA for the TC1240 and 550 µA for the TC1240A. Both devices are available in a 6-Pin SOT- 23A surface mount package.