数据手册：MAX1790, MAX8715 紧凑的高效boost转换器 .pdf [英文Rev.3(PDF,296kB)]
{状况：生产中。}
The MAX1790/MAX8715 boost converters incorporate high-performance (at 1.2MHz), current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in 0.21Ω/0.15Ω n-channel MOSFET to provide a highly efficient regulator with fast response.
High switching frequency (640kHz or 1.2MHz selectable) allows easy filtering and faster loop performance. An external compensation pin provides the user flexibility in determining loop dynamics, allowing the use of small, low equivalent-series-resistance (ESR) ceramic output capacitors. The device can produce an output voltage as high as 12V from an input as low as 2.6V.
Soft-start is programmed with an external capacitor, which sets the input-current ramp rate. In shutdown mode, current consumption is reduced to 0.1µA. The MAX1790/MAX8715 are available in a space-saving 8-pin µMAX® package. The ultra-small package and high switching frequency allow the total solution to be less than 1.1mm high.
产品关键特性
- 90% Efficiency
- Adjustable Output from VIN to 12V
- 1.6A, 0.21Ω, 14V Power MOSFET (MAX1790)
- 2.4A, 0.15Ω, 14V Power MOSFET (MAX8715)
- +2.6V to +5.5V Input Range
- Pin-Selectable 640kHz or 1.2MHz Switching Frequency
- 0.1µA Shutdown Current
- Programmable Soft-Start
- Small 8-Pin µMAX Package
| 应用与使用范围
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典型工作电路
芯片订购型号
| 订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
| MAX1790EUA | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX1790EUA+ | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1790EUA+T | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1790EUA-T | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX8715EUA | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX8715EUA+ | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX8715EUA+T | 生产中 | µMAX；8引脚；15.6mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX8715EUA-T | 生产中 | uMAX；8引脚封装信息 | -40°C至+85°C | 参考数据资料 |
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