数据手册：MAX16956 Industry's Lowest IQ Automotive Buck Converter Replaces Always-On LDO .pdf [英文Rev.2(PDF,1.7MB)]
{状况：生产中。}
The MAX16956 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver up to 300mA with input voltages from 3.5V to 36V, while using only 1.1µA quiescent current at no load (fixed-output versions). Voltage quality can be monitored by observing the active-low RESET signal. The device can operate near dropout by running at 97% duty cycle, making it ideal for automotive applications under cold-crank.
The device offers fixed-output voltages of 5V and 3.3V, as well as an adjustable version. The adjustable version allows the user to program the output voltage between 1V and 10V by using a resistor-divider. Frequency is fixed at 2.1MHz, which allows for small external components, reduced output ripple, and minimized AM radio interference. The device offers both forced-PWM and skip modes of operation, with ultra-low quiescent current of 1.1µA in skip mode. The device can be ordered with spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the switching frequency.
The MAX16956 is available in a small (3mm × 3mm) 10-pin µMAX® package and operates across the full automotive temperature range of -40°C to +125°C. The device is AEC-Q100 qualified.
产品关键特性
- Operating VIN Range: 3.5V to 36V (42V Tolerant)
- DC-DC Converter Up to 300mA Capability
- 1.1µA Quiescent Current in Standby Mode (Fixed-Output-Voltage Versions Only)
- 2.1MHz Operating Frequency
- Spread-Spectrum Options Available
- Short-Circuit, Thermal Protections
- Fixed 5.4ms Internal Soft-Start
- Fixed 5V/3.3V or Programmable Output-Voltage Options (1V to 10V)
- 97% (Max) Duty-Cycle Operation with Low Dropout
- Current-Mode Control Architecture
| 应用与使用范围
- Automotive Body ECUs
- DC动力系统分配
- 负载点应用
|
Typical Application Circuit
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 |
| MAX16956AUBA/V+ | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBA/V+T | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBB/V+ | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBB/V+T | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBC/V+ | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBC/V+T | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBD/V+ | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBD/V+T | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBE/V+ | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBE/V+T | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBF/V+ | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
| MAX16956AUBF/V+T | 生产中 | µMAX-EP；10引脚；26mm²封装信息 | -40°C至+125°C | RoHS/无铅：无铅材料分析 |
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