MAX8640YELT12+T优质货源Maxim原装进口
MAX8640Y/MAX8640Z Step-Down DC-DC Converters
Delivering 500 mA with over 93% efficiency, Maxim offers the industry's smallest size and most robust step-down DC-DC converters currently on the market
Maxim’s MAX8640Y/MAX8640Z step-down converters are optimized for applications where small size, high efficiency, and low output ripple are most important. The product utilizes a proprietary PWM control scheme that optimizes the switching frequency for high efficiency with the use of small external components and will maintain low output ripple voltage at all loads. The MAX8640Z switches at up to 4 MHz to allow a tiny 1 µH inductor and 2.2 µF output capacitor. The MAX8640Y switches at up to 2 MHz for higher efficiency while still allowing small 2.2 µH and 4.7 µF components. Output current is guaranteed up to 500 mA, while typical quiescent current is 28 µA. Factory-preset output voltages from 0.8 V to 2.5 V eliminate external feedback components.
The internal synchronous rectification greatly improves efficiency and replaces the external Schottky diode required in conventional step-down converters. The internal fast soft-start eliminates inrush current which reduces input capacitor requirements.
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MAX8640Y/MAX8640Z Step-Down DC-DC Converters
| 图片 | 制造商零件编号 | 描述 | 电压 - 输出（值/固定） | 频率 - 开关 |
|---|---|---|---|---|
 | MAX8640YEXT18+T | IC REG BCK 1.8V 0.5A SYNC SC70-6 | 1.8V | 2MHz |
| MAX8640ZEXT18+T | IC REG BCK 1.8V 0.5A SYNC SC70-6 | 1.8V | 4MHz |
 | MAX8640YELT12+T | IC REG BUCK 1.2V 0.5A SYNC 6UDFN | 1.2V | 1.8MHz |
| MAX8640YELT18+T | IC REG BUCK 1.8V 0.5A SYNC 6UDFN | 1.8V | 2MHz |
| MAX8640YEXT15+T | IC REG BCK 1.5V 0.5A SYNC SC70-6 | 1.5V | 2MHz |
