EmbeddedRelated.com
    Parts    MCP1826S-3302E/DB
MCP1826S-3302E/DB

MCHPMCP1826S-3302E/DB

Microchip Technology
LDO Voltage Regulators 1A CMOS LDO Vout 3.3V ETR
NRND12,321 in stock
Datasheet Mouser Compare Prices

Overview

The MCP1826S-3302E/DB is a 1A Low Dropout (LDO) linear regulator providing a fixed 3.3V output from an input voltage up to 6V. It features a low quiescent current of 120 uA and a low dropout voltage of 0.4V at its full 1A rated current. This regulator is housed in a 3-pin SOT-223 package, designed for space-constrained applications requiring high current and thermal stability.

Why Choose This Part

This regulator offers a high current-to-package size ratio, supporting 1A output in a compact SOT-223 footprint. It includes integrated safety features like short-circuit current limiting, overtemperature protection, and under-voltage lockout to ensure robust operation under fault conditions.

Applications

Single-Board Computer Power
Providing a stable 3.3V rail for peripheral power in SBC designs where 1A of current is required.
Post-Regulation for Switching Supplies
Reducing switching noise from DC-DC converters to provide clean power to sensitive analog circuits.
Battery-Powered Handhelds
Efficiently regulating Li-ion or NiMH battery stacks with minimal quiescent current draw during operation.
Network Interface Cards
Supplying local power to high-speed communication controllers and PHYs on PCIe or Ethernet cards.

Key Specifications

PSRR 60dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Current - Output 1A
Protection Features Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC
Voltage - Input (Max) 6V
Voltage Dropout (Max) 0.4V @ 1A
Supplier Device Package SOT-223-3
Current - Quiescent (Iq) 220 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

To implement this device, place a minimum 1uF ceramic capacitor on the output for stability and a similar capacitor on the input if the device is far from the power source. Ensure the SOT-223 tab is soldered to a large copper plane to manage the thermal dissipation when operating near the 1A limit and maximum input voltage.

MCP1826 Family

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

Part Number Package Temp Range Stock
MCP1826S-3302E/DB (this part) 4-261 -40degC ~ 125degC 12,321
MCP1826T-3302E/DC 6-223 -40degC ~ 125degC 5,451
MCP1826-3302E/ET 6-263 -40degC ~ 125degC 116
MCP1826ST-3302E/DB 4-261 -40degC ~ 125degC .. 9,107
Also available as: MCP1826S-5002E/DBVAO