数据手册:MAX761, MAX762 集成1A功率MOSFET,减少元件数并节省空间,适用于闪存及PCMCIA供电 .pdf [英文Rev.0(PDF,136kB)]
{该产品不推荐用于新的设计,有些型号不再供货或将要停产并进入最后一次采购阶段,在此之后将不接受新的订单。详细信息请参考定购信息。}
The MAX761/MAX762 step-up switching regulators provide high efficiency over a wide range of load currents, delivering up to 150mA. A unique, current-limited pulse-frequency-modulated (PFM) control scheme gives the devices the benefits of pulse-width-modulated (PWM) converters (high efficiency with heavy loads), while using less than 110µA of supply current (vs. 2mA to 10mA for PWM converters). The result is high efficiency over a wide range of loads.
The MAX761/MAX762 input voltage range is 2V to 16.5V. Output voltages are preset to 12V (MAX761) and 15V (MAX762), or they can be set with two external resistors. With a 5V input, the MAX761 guarantees a 12V, 150mA output. Its high efficiency, low supply current, fast start-up time, SHDN controlling capability, and small size make the MAX761 ideal for powering flash memory.
The MAX761/MAX762 have an internal 1A power MOSFET, making them ideal for minimum-component, low- and medium-power applications. These devices use tiny external components, and their high switching frequencies (up to 300kHz) allow for small surface-mount magnetics.
For increased output drive capability or higher output voltages, use the MAX770-MAX773, which are similar in design to the MAX761/MAX762, but drive external power MOSFETs. For stepping up to 5V, see the MAX756/MAX757 and MAX856-MAX859 data sheets.
产品关键特性
- High Efficiency for a Wide Range of Load Currents
- 12V/150mA Flash Memory Programming Supply
- 110µA Max Supply Current
- 5µA Max Shutdown Supply Current
- 2V to 16.5V Input Voltage Range
- 12V (MAX761), 15V (MAX762) or Adjustable Output
- Current-Limited PFM Control Scheme
- 300kHz Switching Frequency
- Internal, 1A, N-Channel Power FET
- LBI/LBO Low-Battery Comparator
| 应用与使用范围
- 电池供电应用
- 闪存编程
- 高效DC-DC转换器
- PCMCIA卡
|
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 |
MAX761C/D | 停止供货 | MAX618MAX1771 | DICESALES;NA引脚;DICE;封装信息 | |
MAX761CPA | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | 0°C至+70°C |
MAX761CPA+ | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | 0°C至+70°C |
MAX761CSA | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX761CSA+ | 限制供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX761CSA+T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX761CSA-T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX761EPA | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | -40°C至+85°C |
MAX761EPA+ | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | -40°C至+85°C |
MAX761ESA | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX761ESA+ | 限制供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX761ESA+T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX761ESA-T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX761MJA | 停止供货 | MAX618MAX1771 | CDIP(N);8引脚;82.6mm²封装信息 | -55°C至+125°C |
MAX762C/D | 停止供货 | MAX618MAX1771 | DICESALES;NA引脚;DICE;封装信息 | |
MAX762CPA | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | 0°C至+70°C |
MAX762CPA+ | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | 0°C至+70°C |
MAX762CSA | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX762CSA+ | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX762CSA+T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | 0°C至+70°C |
MAX762CSA-T | 停止供货 | MAX618MAX1771 | N.SO;8引脚封装信息 | 0°C至+70°C |
MAX762EPA | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | -40°C至+85°C |
MAX762EPA+ | 停止供货 | MAX618MAX1771 | PDIP(N);8引脚;81.9mm²封装信息 | -40°C至+85°C |
MAX762ESA | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX762ESA+ | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX762ESA+T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX762ESA-T | 停止供货 | MAX618MAX1771 | SOIC(N);8引脚;30.9mm²封装信息 | -40°C至+85°C |
MAX762MJA | 停止供货 | MAX618MAX1771 | CDIP(N);8引脚;82.6mm²封装信息 | -55°C至+125°C |
功能接近器件