Features and Benefits
- 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
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.
- Battery-Powered Alarms
- Industrial Control Systems
- Microcontroller Power
- PDAs and Handy-Terminals
- Real-Time Clock Backup Power
- Remote Transmitters
- Smart Battery Packs/Chargers
- Smoke Detectors
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX1726 Companion Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|MAX1726EUK18+||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK18+T||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK25+||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK25+T||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK33+||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK33+T||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK50+||Material Declaration||Reliability Data||5-SOT_23-N/A|
|MAX1726EUK50+T||Material Declaration||Reliability Data||5-SOT_23-N/A|
|Wafer Fabrication Data|
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