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MAXREFDES1220: Bootstrapped, 5V/2A, Step-Up DC-DC Converter with 90% Efficiency Using the MAX16990

MAXREFDES1220

参考设计免责声明 参照  重要声明和免责声明  涵盖参考设计和其他Maxim资源

描述

This reference design boosts a single-cell battery voltage input to a 10W output using the MAX16990 controller in bootstrapped mode. In order to use the part below 4.5V, the part needs a bootstrap on the input, ensuring there is a minimum of 4.5V on the supply pin to turn on the IC. Therefore, this reference design has a low input range of 2.5V to 4.5V and can be used to generate up to 2A at 5V.

The MAX16990 IC is a current-mode PWM controller with very low shutdown current used for wide input-voltage range boost/SEPIC converters. The IC’s 4.5V to 36V input operating voltage range makes this device ideal in automotive applications. An internal low-dropout regulator with a 5V output voltage enables the MAX16990 to operate directly from an automotive battery input. As mentioned, the input operating range can be extended to as low as 2.5V when the converter output is applied to the SUP input. It is available in compact 12-pin TQFN and 10-pin μMAX® packages.

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设计, 制作, 测试

图中的电路板已经完成封装和测试。不可售。

 

Maxim设备 (1)

器件号 名称 产品线 购买 设计套件和评估模块
MAX16990 36V、2.5MHz汽车级Boost/SEPIC控制器 开关稳压器 立即购买 Design Kits

Maxim设备 (1)

器件号 产品线
开关稳压器
36V、2.5MHz汽车级Boost/SEPIC控制器

设计资料 (3)

标题 类型 尺寸 日期
maxrefdes1220-bom PDF 515KB 2019-11-22
maxrefdes1220-pcb PDF 506KB 2019-11-22
maxrefdes1220-schematic PDF 16KB 2019-11-22
日期 类型
2019-11-22

maxrefdes1220-bom

(PDF, 515KB)

2019-11-22

maxrefdes1220-pcb

(PDF, 506KB)

2019-11-22

maxrefdes1220-schematic

(PDF, 16KB)

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