数据手册：MAX742 .pdf [英文Rev.2(PDF,152kB)]
{该产品已停产，推荐替代产品请查看订购信息。}The MAX742 DC-DC converter is a controller for dual-output power supplies in the 3W to 60W range. Relying on simple two-terminal inductors rather than transformers, the MAX742 regulates both outputs independently to within ±4% over all conditions of line voltage, temperature, and load current. The MAX742 has high efficiency (up to 92%) over a wide range of output loading. Two independent PWM current-mode feedback loops provide tight regulation and operation free from subharmonic noise. The MAX742 can operate at 100kHz or 200kHz, so it can be used with small and lightweight external components. Also ripple and noise are easy to filter. The MAX742 provides a regulated output for inputs ranging from 4.2V to 10V (and higher with additional components). External power MOSFETs driven directly from the MAX742 are protected by cycle-by-cycle overcurrent sensing. The MAX742 also features undervoltage lockout, thermal shutdown, and programmable soft-start. If 3W of load power or less is needed, refer to the MAX743 data sheet for a device with internal power MOSFETs.
产品关键特性
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简化框图
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 |
| MAX742C/D | N/A | 停止供货 | MAX668MAX1846 | DICESALES；NA引脚；DICE；封装信息 |
| MAX742CPP | N/A | 停止供货 | MAX668MAX1846 | PDIP(N)；20引脚；217.1mm²封装信息 |
| MAX742CWP | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742CWP+ | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742CWP+T | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742CWP-T | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742EPP | N/A | 停止供货 | MAX668MAX1846 | PDIP(N)；20引脚；217.1mm²封装信息 |
| MAX742EPP+ | N/A | 停止供货 | MAX668MAX1846 | PDIP(N)；20引脚；217.1mm²封装信息 |
| MAX742EWP | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742EWP+ | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742EWP+T | N/A | 停止供货 | MAX668MAX1846 | SOIC(W)；20引脚；137.3mm²封装信息 |
| MAX742EWP-T | N/A | 停止供货 | MAX668MAX1846 | W.SO；20引脚封装信息 |
| MAX742EWP/GH9 | N/A | 停止供货 | SOIC(W)；20引脚；137.3mm²封装信息 | |
| MAX742EWP/GH9-T | N/A | 停止供货 | W.SO；封装信息 | |
| MAX742MJP | N/A | 停止供货 | MAX668MAX1846 | CDIP(N)；20引脚；218.9mm²封装信息 |
功能接近器件
| MAX743 | 双输出、PWM开关模式稳压器(5V至±15V或±12V) |
