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MCP1700T-1802E/TT

MCHPMCP1700T-1802E/TT

Microchip Technology
Widely used low-cost 1.8 V LDO alternative for simple, low-current power domains.
Active17,282 in stock

Overview

The Microchip MCP1700T-1802E/TT is a low-cost, low-dropout (LDO) linear regulator providing a fixed 1.8V output with a maximum output current of 200mA. It is designed for simple, low-current power domains and features a very low quiescent current, making it suitable for battery-powered applications. The device is stable with a 1.0 uF ceramic output capacitor.

Why Choose This Part

Engineers benefit from its very low quiescent current, which is critical for extending battery life in portable and IoT applications. Its small SOT-23 package minimizes PCB footprint, and it includes essential protection features like overcurrent and overtemperature shutdown. The ability to use a small 1.0 uF ceramic output capacitor simplifies BOM and reduces board space.

Applications

Battery-Powered Devices
The ultra-low quiescent current of 1.6 uA (typical) extends battery life in portable electronics and IoT sensors.
Low-Current Microcontroller Power Rails
Provides a stable 1.8V supply for microcontrollers and other digital logic in power-sensitive designs.
Embedded Systems
Ideal for point-of-load regulation in various embedded applications requiring a simple and efficient 1.8V supply.
Automotive Systems
AEC-Q100 qualified and PPAP capable, making it suitable for non-critical automotive power domains.
Sensor Power Supplies
Can be used to power low-current sensors that require a regulated 1.8V supply.

Key Specifications

PSRR 44dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Current - Output 200mA
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 @ 200mA
Supplier Device Package SOT-23-3
Current - Quiescent (Iq) 4 uA
Voltage - Output (Min/Fixed) 1.8V

Getting Started

This LDO is a fundamental component for power management. Design involves selecting appropriate input and output capacitors (e.g., 1.0 uF ceramic output capacitor for stability) and ensuring the thermal design can dissipate power if operating near maximum current. Standard PCB layout practices for power components should be followed to minimize noise and improve performance.

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-1802E/TT (this part) 3-236 200mA 0.35V 1.8V 17,282
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-5002E/TT 3-236 250mA 0.35V 5V 15,928
Also available as: MCP1700-3302E/TO, MCP1700-330, MCP1700-3002E/TO, MCP1700-33
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