資料介紹
The TC1219/TC1220 are CMOS “charge-pump”
voltage converters in ultra-small 6-Pin SOT-23A
packages. They invert and/or double an input voltage
which can range from +2.5V to +5.5V. Conversion
efficiency is typically >95%. Switching frequency is
12kHz for the TC1219, 35kHz for the TC1220. When
the shutdown pin is held at a logic low, the device goes
into a very low power mode of operation, consuming
less than 1μA of supply current.
External component requirement is only two capacitors
for standard voltage inverter applications. With a few
additional components a positive doubler can also be
built. All other circuitry, including control, oscillator,
power MOSFETs are integrated on-chip. Typical supply
currents are 60μA (TC1219), 115μA (TC1220).
All devices are available in 6-pin SOT-23A surface
mount packages.
voltage converters in ultra-small 6-Pin SOT-23A
packages. They invert and/or double an input voltage
which can range from +2.5V to +5.5V. Conversion
efficiency is typically >95%. Switching frequency is
12kHz for the TC1219, 35kHz for the TC1220. When
the shutdown pin is held at a logic low, the device goes
into a very low power mode of operation, consuming
less than 1μA of supply current.
External component requirement is only two capacitors
for standard voltage inverter applications. With a few
additional components a positive doubler can also be
built. All other circuitry, including control, oscillator,
power MOSFETs are integrated on-chip. Typical supply
currents are 60μA (TC1219), 115μA (TC1220).
All devices are available in 6-pin SOT-23A surface
mount packages.
TC12
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