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MAX1726：12V、超低IQ、低压差线性稳压器

The MAX1725/MAX1726 are ultra-low supply current, low-dropout linear regulators intended for low-power applications that demand the longest possible battery life. Unlike inferior PNP-based designs, the MAX1725/MAX1726s' PMOS pass elements maintain an ultra-low 2µA supply current throughout their entire operating range and in dropout. Despite their ultra-low power consumption, the MAX1725/MAX1726 have tight output accuracy (1.5%) and require just 1µF output capacitance to achieve good load-transient response. These regulators have a wide input voltage range (+2.5V to +12V), making them excellent choices for systems powered from two lithium-ion (Li+) cells and 9V batteries. Other features include reverse-battery protection, short-circuit protection, and thermal protection. The MAX1725 provides an adjustable 1.5V to 5V output using an external resistor-divider. The MAX1726 provides factory preset 1.8V, 2.5V, 3.3V, or 5V output voltages (see the Ordering Information in the full data sheet). Both devices are available in a tiny 5-pin SOT23 package.

关键特性 2µA Supply Current Reverse-Battery Protection +2.5V to +12V Input Voltage Range Fixed 1.8V, 2.5V, 3.3V, and 5V Output Voltages (MAX1726) Adjustable 1.5V to 5V Output Voltages (MAX1725) 20mA Guaranteed Output Current 1.5% Output Voltage Accuracy Small 1µF Output Capacitor Short-Circuit Protection Thermal Protection Tiny 5-Pin SOT23 Package

MAX1725、MAX1726：典型工作电路 应用 电池供电报警 工业控制系统 微控制器电源 PDA与手持终端 实时时钟备用电源 远端发送器 智能电池组/充电器 烟雾检测器

数据手册DataSheet

关键参数

技术资料

• Selecting LDO Linear Regulators for Cellphone Designs
• Choosing the Right Power-Supply IC for your Application

质量和环境数据

• MAX1726.pdf

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