MAX1763：1.5A、低噪声、1MHz、升压型DC-DC转换器
高性能、低噪声1MHz升压型DC-DC转换器
The MAX1763 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications. This device maintains exceptionally low quiescent supply current (110µA) despite its high 1MHz operating frequency. Small external components and a tiny package make this device an excellent choice for small hand-held applications that require the longest possible battery life. The MAX1763 uses a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single Lithium-ion (Li+) cell. Maxim's proprietary Idle Mode™ circuitry significantly improves efficiency at light load currents while smoothly transitioning to fixed-frequency PWM operation at higher load currents to maintain excellent full-load efficiency. Low-noise, forced-PWM mode is available for applications that require constant-frequency operation at all load currents. The MAX1763 may also be synchronized to an external clock to protect sensitive frequency bands in communications equipment. The MAX1763 includes an on-chip linear gain block that can be used to build a high-power external linear regulator or as a low-battery comparator. Soft-start and current limit functions permit optimization of efficiency, external component size, and output voltage ripple. The MAX1763 is available in a space-saving 16-pin QSOP package or a high-power (1.5W) 16-pin TSSOP-EP package.
关键特性
| MAX1763：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX1763.pdf | Rev 2; 05/2011 |
关键参数
| Part Number | VIN (V) | VIN (V) | VOUT1 (V) | VOUT1 (V) | Preset VOUT (V) | IOUT1 (A) | Output Adjust. Method | Switch Type | Synchronous Switching | ICC (mA) | Shutdown Mode Supply Current (µA) | Shutdown Mode Supply Current (µA) | DC-DC Outputs | Oper. Freq. (kHz) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | max | typ | typ | max | See Notes | ||||||||
| MAX1763 | 0.7 | 5.5 | 2.5 | 5.5 | 3.3 | 1.5 |
| Internal | Yes | 0.11 | 1 | 10 | 1 | 1000 |
| $2.96 @1k |
开发工具
技术资料
- High-Power White-LED Driver Operates on 1 or 2 Alkaline Cells
- Choosing the Right DC-DC Converter for Automotive Applications
质量和环境数据
相关产品
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX1763EEE | 停止供货 | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 | |
| MAX1763EEE+ | 生产中 | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX1763EEE+T | 生产中 | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX1763EEE-T | 停止供货 | MAX1763EEE+T | QSOP；16引脚 | -40°C至+85°C | 参考数据资料 |
| MAX1763EUE | 停止供货 | MAX1763EUE+ | TSSOP-EP,；16引脚；33.2mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX1763EUE+ | 生产中 | TSSOP-EP,；16引脚；33.2mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX1763EUE+T | 生产中 | TSSOP-EP,；16引脚；33.2mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX1763EUE+TG069 | 生产中 | TSSOP-EP,；16引脚；33.2mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX1763EUE-T | 停止供货 | TSSOP-EP,；16引脚；33.2mm² | -40°C至+85°C | RoHS/无铅：否 |
- MAX1763.pdf MAX1763
- MAX1763.pdf MAX1763
- MAX1763.pdf MAX1763
- High-Power White-LED Driver Operates on 1 or 2 Alkaline Cells MAX1763
- Choosing the Right DC-DC Converter for Automotive Applications MAX8881
- MAX1763.pdf MAX1763
- 典型工作电路 MAX1763
