The MCP1700T-1202E/TT: Powering the Next Generation of Low-Power Devices

In the world of electronics design, efficient power management is a cornerstone of performance and reliability. For applications where every microamp counts, linear regulators remain a popular choice for their simplicity and clean output. Among these, the Microchip MCP1700T-1202E/TT stands out as a premier solution for battery-powered and always-on devices, offering an exceptional blend of ultra-low power consumption and robust performance.

This low-dropout (LDO) regulator is designed to deliver a fixed 3.3V output voltage from an input voltage range of 2.7V to 13.2V, with a maximum output current of 150mA. Its most defining characteristic is its incredibly low quiescent current of just 1.6 µA (typical). Quiescent current is the current the regulator consumes internally when it is powered but not supplying a load. This minuscule figure is critical for extending battery life, making the MCP1700 an ideal choice for applications like IoT sensors, wearable technology, smart meters, and other devices that spend significant time in sleep or standby modes.

Beyond its low IQ, the MCP1700 boasts a very low dropout voltage of 178 mV (typical) at 150mA load. This means it can continue to regulate its output voltage effectively even when the input voltage dips very close to the output level, which is essential for maximizing energy harvest from batteries as they discharge. Furthermore, the device features built-in protection mechanisms, including current limit and thermal shutdown, safeguarding both the regulator and the downstream circuitry from fault conditions.

Housed in a space-saving SOT-23-3 package, the MCP1700T-1202E/TT is also designed for compact PCB layouts, addressing the need for miniaturization in modern electronics. Its stability with a small, low-ESR ceramic output capacitor further reduces the required board space and overall bill of materials cost.

ICGOODFIND: The Microchip MCP1700T-1202E/TT is a highly efficient 150mA LDO voltage regulator that sets the benchmark for ultra-low quiescent current operation. Its combination of minimal power drain, low dropout voltage, and integrated protection makes it an indispensable component for designers striving to achieve maximum runtime and reliability in power-sensitive applications.

Keywords:

Low Quiescent Current

LDO Voltage Regulator

150mA Output

3.3V Output

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