MAX1729集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

General Description

The MAX1729 micropower step-up/step-down DC-DC converter is ideally suited for electrically controlled birefringence (ECB) and liquid-crystal-display (LCD) bias supply generation. It provides step-up/step-down voltage conversion and reduces output ripple by using a step-up DC-DC converter followed by a linear regulator. This architecture permits a physically smaller inductor than those used in competing SEPIC and flyback topologies. This device features low quiescent current(67μA typical). A logic-controlled shutdown mode further reduces quiescent current to 0.4μA typical.

Features

? High-Accuracy Reference Voltage (±1)

? ±11ppm/°C Output Voltage Drift

? On-Chip Temperature Sensor Output

? Accurate Voltage and Temperature Provide:

Consistent ECB Colors

Consistent LCD Gray-Scale Contrast

? +2.7V to +5.5V Input Voltage Range

? Output Voltage Range

+2.5V to +16V in Internal Feedback Mode

Programmable in External Feedback Mode

? Dynamic Control of the Output Voltage

? 67μA Supply Current

? 0.4μA Shutdown Current

? 10-Pin μMAX Package (1.09mm max height)

? Evaluation Kit Available (MAX1729EVKIT)