MAX871：开关电容电压反相器
紧凑的、无电感、小外形反相器，封装尺寸为0.025平方英寸，用于偏置GaAsFET PA
The ultra-small MAX870/MAX871 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.4V to +5.5V. The MAX870 operates at 125kHz, and the MAX871 operates at 500kHz. Their high efficiency (90%) and low operating current (0.7mA for the MAX870) make these devices ideal for both battery-powered and board-level voltage-conversion applications. Oscillator control circuitry and four power MOSFET switches are included on-chip. A typical MAX870/ MAX871 application is generating a -5V supply from a +5V logic supply to power analog circuitry. Both parts come in a 5-pin SOT23-5 package and can deliver 25mA with a voltage drop of 500mV. For a similar device with logic-controlled shutdown, refer to the MAX1720/MAX1721. For applications requiring more power, the MAX860 delivers up to 50mA with a voltage drop of 600mV, in a space-saving µMAX package.
关键特性
| MAX870、MAX871：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX870-MAX871.pdf | Rev 1; 05/2004 |
关键参数
| Part Number | Topology | VIN (V) | VIN (V) | ICC (mA) | Unadj. VOUT (V) | IOUT (A) | Oper. Freq. (kHz) | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|
| min | max | max | typ | See Notes | ||||||
| MAX870 |
| 1.4 | 5.5 | 1 | -VIN | 0.025 | 125 | -40 to +85 | SOT/5 | $2.16 @1k |
| MAX871 | 3.8 | 500 | SOT/5 | $0.71 @1k | ||||||
技术资料
质量和环境数据
相关产品
- MAX860：50mA、频率可选的开关电容电压变换器
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX871EUK+ | 生产中 | SOT,；5引脚；9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX871EUK+T | 生产中 | SOT,；5引脚；9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX871EUK+TG002 | 停止供货 | MAX871EUK+T | SOT,；5引脚；9mm² | -40°C至+85°C | RoHS/无铅：无铅 |
| MAX871EUK-T | 停止供货 | MAX871EUK+T | SOT,；5引脚；9mm² | -40°C至+85°C | RoHS/无铅：否 |
- MAX870-MAX871.pdf MAX871
- Triple Capacitive Voltage Inverter with the MAX871 MAX871
- DC-DC Conversion Without Inductors MAX871
- MAX871.pdf MAX871
- MAX870-MAX871.pdf MAX871
