制造商: Analog Devices Inc.
产品种类: 开关稳压器
RoHS: N
安装风格: SMD/SMT
封装 / 箱体: QSOP-16
输出电压: 24 V, - 9 V
输出电流: 10 mA
输出端数量: 2 Output
输入电压（最小值）: 2.7 V
输入电压（最大值）: 5.5 V
开关频率: 200 kHz to 400 kHz
最小工作温度: - 40 C
最大工作温度: + 85 C
系列: MAX685
封装: Tube
商标: Analog Devices / Maxim Integrated
负载调节: 0.13 %
产品类型: Switching Voltage Regulators
100
子类别: PMIC - Power Management ICs
类型: Voltage Converter
零件号别名: MAX685
单位重量: 288 mg
The MAX685 DC-DC converter provides low-noise dual outputs for powering CCD imaging devices and LCDs. This device uses a single inductor to provide independently regulated positive and negative outputs. Integrated power switches are included in a small 24- Pin 4mm x 4mm Thin QFN package to save space and reduce cost. A 16-pin QSOP package is also available. Each output delivers up to 10mA from a +2.7V to +5.5V input voltage range. Output voltages are set independently up to 24V and down to -9V. With a few additional low-cost components, the output voltages can be set at up to 45V and down to -16V. Output ripple magnitude is 30mVp-p. The MAX685 uses a fixed-frequency, pulsewidth-modulated (PWM) control scheme at 220kHz or 400kHz to permit output noise filtering and to reduce the size of external components. The frequency can also be synchronized to an external clock signal between 200kHz and 480kHz. The MAX685 has a power-OK indicator output (POK) that signals when both outputs are within regulation. A logic-controlled shutdown completely turns off both outputs and reduces supply current to 0.1µA. The user can also set which output turns on first. The preassembled MAX685 evaluation kit is available to reduce design time.