MCP1755S-3302E/DB

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MCP1755S-3302E/DB

IC REG LIN 3.3V 300MA SOT223-3

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規格

Package Tube
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 16V
Voltage-Output(Min/Fixed) 3.3V
VoltageDropout(Max) 0.5V @ 300mA
Current-Output 300mA
Current-Quiescent(Iq) 100 µA
Current-Supply(Max) 400 µA
PSRR 80dB (1kHz)
ProtectionFeatures Over Current, Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case TO-261-4, TO-261AA

概述

Description

The MCP1755S-3302E/DB is Microchip’s fixed-output low-dropout (LDO) regulator in the MCP1755S family. It provides a regulated 3.3 V output from a higher input voltage, suitable for microcontrollers, sensors, and other digital circuitry.
Key points:
- Fixed 3.3 V output, suitable for portable/battery-powered designs.
- Capable of supplying up to about 150 mA (variant dependent).
- Features enable/shutdown control, low quiescent current, and protection (short-circuit and thermal shutdown).
- Inputs typically tolerate a modest Vin range; designed for simple, compact power rails.
- Package suffix DB indicates a specific micro packaging/reel option (check datasheet for exact footprint and ordering code).
Typical applications: small embedded systems, wearables, portable instruments, and any circuit needing a stable 3.3 V rail with minimal external components.
Note: For exact electrical specifications, operating range, dropout, and package details, consult the MCP1755S-3302E/DB datasheet and packaging guide.

Features

Concise features of MCP1755S-3302E/DB:
- Fixed 3.3V output
- Up to ~150 mA load current
- Very low quiescent current (microamp range)
- Low dropout voltage
- Internal current limit and thermal shutdown protection
- Stable with ceramic output capacitors (low ESR required)
- Wide input range (up to about 6V)
- 3-pin SOT-23 package (DB) with RoHS-compliant lead-free
- Simple pinout (no external resistors needed for fixed output)
- Optional extended temperature variant available (E-grade)
Note: For proper stability, use the recommended output capacitor per datasheet.

Package

8-pin SOIC (Small Outline) package, RoHS-compliant.

Pinout

Pin count: 8 pins.
Function: Fixed 3.3 V low-dropout (LDO) regulator (MCP1755S) with enable input, providing a regulated 3.3 V output from a higher input voltage.

Manufacturer

- Manufacturer: Microchip Technology Inc.
- What kind of company: A multinational American semiconductor company that designs and manufactures microcontrollers, analog and mixed-signal ICs, memory, and embedded control solutions.

Application

Applications: 3.3V LDO for portable and battery-powered electronics; power rails for MCUs, DSPs and sensors; IoT devices, wearables, handheld instruments; RF modules, GPS, cameras, displays; suitable for any system needing a stable 3.3V from higher input with low quiescent current and compact footprint.

Equivalent

Equivalent 3.3 V LDO regulators with similar 150 mA output include:
- Microchip MCP1700-3302E/DB
- TI TLV70033DBVR
- Analog Devices ADP3333AUJZ-3.3
- Torex XC6206P332MR
Note: exact cross-refs depend on package, pinout, dropout, and quiescent current. Verify footprint and electrical specs before substitution.

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