TCM829ECT - Microchip Technology - Switched Capacitor Voltage Converters

Quick Detail:

Switched Capacitor Voltage Converters

Description:

The TCM828/829 are CMOS “charge-pump” voltage converters in ultra-small 5-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%.

Switching frequency is 12kHz for the TCM828 and 35kHz for the TCM829.

External component requirement is only two capacitors (3.3µF nominal) 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. Supply current is 50µA (TCM828) and 115µA (TCM829).

The TCM828 and TCM829 are available in a 5-Pin SOT-23A surface mount package.

Applications:

■ Charge Pump in 5-Pin SOT-23A Package

■ >95% Voltage Conversion Efficiency

■ Voltage Inversion and/or Doubling

■ Low 50µA (TCM828) Quiescent Current

■ Operates from +1.5V to +5.5V

■ Up to 25mA Output Current

■ Only Two External Capacitors Required

Specifications:

Competitive Advantage:

Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

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