描述 Description

The TC1219/1220 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 12 KHz for the TC1219, 35 KHz 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 1 μA 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 60 μA (TC1219), 115 μA (TC1220). All devices are available in 6-pin SOT-23A surface mount packages.

特性 Features

Charge Pumps in 6-Pin SOT-23A Package>95% Voltage Conversion EfficiencyVoltage Inversion and/or DoublingOperates from +2.5V to +5.5VUp to 25 mA Output CurrentOnly Two External Capacitors RequiredLow Power ConsumptionPower-Saving Shutdown ModeTC1220 Compatible with 1.8V Logic Systems

簡介

TC1219屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由制造生產(chǎn)的TC1219穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會通過該元件。