数据手册：MAX798 在较宽的负载范围内保持高效 .pdf [英文Rev.0(PDF,108kB)]
{状况：生产中。}The MAX798 high-performance, step-down DC-DC converter provides main CPU power in battery-powered systems. This buck controller achieves 96% efficiency by using synchronous rectification and Maxim's proprietary Idle Mode™ control scheme to extend battery life at full-load (up to 10A) and no-load outputs. The MAX798's high accuracy meets the demanding requirements of the latest-generation CPUs. Excellent dynamic response corrects output transients caused by the latest dynamic-clock CPUs within five 300kHz clock cycles. Unique bootstrap circuitry drives inexpensive N-channel MOSFETs, reducing system cost and eliminating the crowbar switching currents found in some PMOS/NMOS switch designs. The MAX798 has a logic-controlled and synchronizable fixed-frequency pulse-width-modulating (PWM) operating mode, which reduces noise and RF interference in sensitive mobile-communications and pen-entry applications. The SKIP override input allows automatic switchover to idle-mode operation (for high-efficiency pulse skipping) at light loads, or forces fixed-frequency mode for lowest noise at all loads.
产品关键特性
| 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 |
| MAX798ESE | 生产中 | SOIC(N)；16引脚；61.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX798ESE+ | 生产中 | SOIC(N)；16引脚；61.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX798ESE+T | 生产中 | SOIC(N)；16引脚；61.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX798ESE-T | 生产中 | SOIC(N)；16引脚；61.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
功能接近器件
| MAX1652 | 高效率、PWM、降压型DC-DC控制器，16引脚QSOP封装 |
| MAX1653 | 高效率、PWM、降压型DC-DC控制器，16引脚QSOP封装 |
| MAX1654 | 高效率、PWM、降压型DC-DC控制器，16引脚QSOP封装 |
- MAX798.pdf MAX798
- 典型工作电路 MAX798
