数据手册：MAX1776 .pdf [英文Rev.2(PDF,752kB)]
{状况：生产中。}
The MAX1776 high-efficiency step-down converter provides an adjustable output voltage from 1.25V to VIN from supply voltages as high as 24V. An internal current-limited 0.4Ω MOSFET delivers load currents up to 600mA. Operation to 100% duty cycle minimizes dropout voltage (240mV at 600mA).
The MAX1776 has a low 15µA quiescent current to improve light-load efficiency and conserve battery life. The device draws only 3µA while in shutdown.
High switching frequencies (up to 200kHz) allow the use of tiny surface-mount inductors and output capacitors. The MAX1776 is available in an 8-pin µMAX package, which uses half the space of an 8-pin SO. For increased output drive capability, use the MAX1626/ MAX1627 step-down controllers, which drive an external P-channel MOSFET to deliver up to 20W.
产品关键特性
- Fixed 5V or Adjustable Output
- 4.5V to 24V Input Voltage Range
- Up to 600mA Output Current
- Internal 0.4Ω P-Channel MOSFET
- Efficiency Over 95%
- 15µA Quiescent Supply Current
- 3µA Shutdown Current
- 100% Maximum Duty Cycle for Low Dropout
- Current-Limited Architecture
- Thermal Shutdown
- Small 8-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 |
| MAX1776EUA | 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 |
| MAX1776EUA+ | 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 |
| MAX1776EUA+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 |
| MAX1776EUA-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 |
功能接近器件
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