MAX1725：12V、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
| MAX1725、MAX1726：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX1725-MAX1726.pdf | Rev 2; 12/2012 |
关键参数
| Part Number | Regulators | VIN (V) | VIN (V) | Preset VOUT (V) | Adj. VOUT (V) | Adj. VOUT (V) | VDROPOUT @Rated ILOAD (V) | Rated ILOAD (mA) | Rated ILOAD (mA) | ICC (µA) | Output Voltage Noise (µV RMS) | Ref. Bypass | Low Batt./ Pwr. Fail Out | Watchdog | Reverse Batt. Protect. | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | typ | max | typ | See Notes | |||||||||||
| MAX1725 | 1 | 2.5 | 12 | - | 1.5 | 5 | 0.3 | 20 | 20 | 4.5 | 350 | No | No | No | Yes | -40 to +85 | SOT/5 | $0.82 @1k |
| MAX1726 |
| - | - | SOT/5 | ||||||||||||||
技术资料
- Automotive Linear Regulators Minimize Quiescent Current
- Selecting LDO Linear Regulators for Cellphone Designs
- Choosing the Right Power-Supply IC for your Application
相关产品
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订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX1725EUK+T | 生产中 | SOT,；5引脚；9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX1725EUK-T | 停止供货 | MAX1725EUK+T | SOT,；5引脚；9mm² | -40°C至+85°C | RoHS/无铅：否 |
- MAX1725-MAX1726.pdf MAX1726
