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MAX757CPA+
直流-直流开关, 升压稳压器,可调, 700mV-5.5V输入, 2.7V-5.5V输出, 200mA输出, DIP-8
产品范围选择器 (MAX756; MAX757)
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The MAX757CPA+ is a CMOS Step-up DC-DC Switching Regulator for small, low input voltage or battery-powered systems. The MAX757 is an adjustable version that accepts an input voltage down to 0.7V and generates a higher adjustable output voltage in the range from 2.7 to 5.5V. Typical full-load efficiencies for the MAX757 is greater than 87%. The MAX757 provide three improvements over previous devices. Physical size is reduced-the high switching frequencies (up to 0.5MHz) made possible by MOSFET power transistors allow for tiny (<5mm diameter) surface-mount magnetic. Efficiency is improved to 87% (10% better than with low-voltage regulators fabricated in bipolar technology). Supply current is reduced to 60µA by CMOS construction and an unique constant-off-time pulse-frequency modulation control scheme.
- Operates down to 0.7V input supply voltage
- 87% Efficiency at 200mA
- 60µA Quiescent current
- 20µA Shutdown mode with active reference and LBI detector
- ±1.5% Reference tolerance over-temperature
- Low-battery detector (LBI/LBO)
应用
计算机和计算机周边, 医用, 电源管理, 便携式器材
警告
静电敏感设备, 在处理设备时请采取适当的预防措施.
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| 数量 | 单价（含增值税） | 您所支付金额（含增值税） |
|---|---|---|
| 1+ | CNY30.72 (CNY34.71) | ( ) |
| 10+ | CNY27.58 (CNY31.17) | ( ) |
| 25+ | CNY26.07 (CNY29.46) | ( ) |
| 100+ | CNY21.44 (CNY24.23) | ( ) |
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