EmbeddedRelated.com
The 2026 Embedded Online Conference
MCP1700T-5002E/TT

MCHPMCP1700T-5002E/TT

Microchip Technology
Very low quiescent current LDO in a small SOT-23 package, useful when ultra-low Iq is a priority at modest output currents.
Active15,928 in stock

Overview

The MCP1700T-5002E/TT is a CMOS low dropout (LDO) voltage regulator designed to deliver up to 250mA while consuming an ultra-low quiescent current of only 1.6uA. It provides a fixed 5V output from an input voltage up to 6V, making it an ideal choice for extending battery life in portable applications. The device is housed in a compact SOT-23 package and is AEC-Q100 qualified for automotive reliability.

Why Choose This Part

The primary advantage is the exceptionally low quiescent current of 1.6uA, which is significantly lower than standard LDOs. It requires only a 1uF ceramic output capacitor for stability, reducing the overall PCB footprint and BOM cost. Additionally, integrated short circuit and overtemperature protection enhance system robustness.

Applications

Battery-Powered Portable Devices
Extends the shelf life and operating time of devices powered by Li-Ion, alkaline, or NiMH batteries due to the 1.6uA Iq.
Remote Sensors
Provides stable 5V power to wireless sensor nodes where maintenance access for battery replacement is limited.
Automotive Telematics
Utilizes AEC-Q100 qualification to provide power for low-power automotive subsystems that remain active while the ignition is off.

Key Specifications

PSRR 44dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Current - Output 250mA
Protection Features Over Current, Over Temperature, Short Circuit
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC
Voltage - Input (Max) 6V
Voltage Dropout (Max) 0.35V @ 250mA
Supplier Device Package SOT-23-3
Current - Quiescent (Iq) 4 uA
Voltage - Output (Min/Fixed) 5V

Getting Started

To use this LDO, place a 1uF ceramic capacitor as close as possible to the input and output pins for stability and transient response. Ensure the input voltage remains between 2.3V and 6V, noting that the 5V output requires sufficient headroom for regulation at higher load currents. No external bypass capacitor is required for the internal reference.

MCP1700 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Output I Voltage Dropout (Max) Output V Stock
MCP1700T-5002E/TT (this part) 3-236 250mA 0.35V 5V 15,928
MCP1700T-3302E/MB TO-243AA 250mA 0.35V 3.3V 151,894
MCP1700T-3302E/TT 3-236 250mA 0.35V 3.3V 291,886
MCP1700T-3002E/TT 3-236 250mA 0.35V 3V 70,266
MCP1700T-1802E/TT 3-236 200mA 0.35V 1.8V 17,282
Also available as: MCP1700-3302E/TO, MCP1700-330, MCP1700-3002E/TO, MCP1700-33
The 2026 Embedded Online Conference