TPS6735 - 固定负 5V 200MA 反向 DC/DC 转换器

TPS6735是TI德州仪器公司的一款转换器（集成开关）产品，TPS6735是固定负 5V 200MA 反向 DC/DC 转换器，本站介绍了TPS6735的封装应用图解、特点和优点、功能等，并给出了与TPS6735相关的TI元器件型号供参考。

TPS6735 - 固定负 5V 200MA 反向 DC/DC 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS6735 is a fixed negative 5-V output inverting dc/dc converter capable of delivering 200 mA from inputs as low as 4.5 V. The only external components required are an inductor, an output filter capacitor, an input filter capacitor, a reference filter capacitor, and a Schottky rectifier. An enable input is provided to shut down the inverter when a -5-V output is not needed. The typical supply current is 1.9 mA at no-load and is further reduced to 1-uA when the enable input is low.

The TPS6735 is a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel MOSFET power switch. The gate drive uses the -5-V output to reduce the die area needed to realize the 0.4- MOSFET. Soft start is accomplished with the addition of one small capacitor at SS. A 1.22-V reference is available for external loads up to 125 uA.

The TPS6735 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered equipment requiring high efficiency and low supply current.

The TPS6735 is available in 8-pin DIP and SOIC packages and operates over a free-air temperature range of -40°C to 85°C.

产品特性

Negative 5-V 200-mA Output (VCC >= 4.5 V)
\x95 4-V to 6.2-V Input Operating Range
\x95 78% Typical Efficiency
\x95 160-kHz Fixed-Frequency Current-Mode PWM Controller
\x95 EN Input Inhibits Operation and Reduces Supply Current to 1 uA
\x95 Soft Start
\x95 8-Pin SOIC and DIP Packages
\x95 -40°C to 85°C Free-Air Temperature Range
\x95 Pin-for-Pin Compatible with MAX735

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