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LP2951CM-3.3

Name: LP2951CM-3.3
Rating: 4.7 (12 reviews)

IC REG LIN POS ADJ 100MA 8SOIC

製造商
製造商。部分 #LP2951CM-3.3
包 SOIC-8
資料表 LP2951CM-3.3 DataSheet
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規格

Package	Tube,Tube
ProductStatus	Not For New Designs
OutputConfiguration	Positive
OutputType	Adjustable (Fixed)
NumberofRegulators	1
Voltage-Input(Max)	30V
Voltage-Output(Min/Fixed)	1.235V (3.3V)
Voltage-Output(Max)	29V
VoltageDropout(Max)	0.6V @ 100mA
Current-Output	100mA
Current-Quiescent(Iq)	120 µA
Current-Supply(Max)	14 mA
ControlFeatures	Enable
ProtectionFeatures	Over Current, Over Temperature, Short Circuit
OperatingTemperature	-40°C ~ 125°C (TJ)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概述

Description

The LP2951CM-3.3 is a fixed 3.3V low-dropout regulator (LDO) from the LP2951 family. It provides a regulated 3.3V output from a higher single-supply input with very low quiescent current, making it suitable for battery-powered or micropower electronics.
Key points:
- Fixed output: 3.3V
- Very low quiescent current (micropower operation)
- Output current typically up to ~100 mA
- Low dropout (several hundred millivolts depending on load)
- Protection: short-circuit protection and thermal shutdown
- Input/output capacitors recommended for stability (per datasheet)
Pinout (three pins): Input, Ground, Output (package variant CM). The CM suffix refers to the specific package variant.
Applications:
- Battery-powered microcontroller/embedded projects
- Sensor and portable electronics
- Any single-supply system needing a stable 3.3V rail
Note: For exact electrical specs, recommended capacitor values, and package details, consult the LP2951CM-3.3 datasheet.

Package

TO-92 molded plastic, 3-pin through-hole package.

Pinout

- Pin count: 3 pins
- Function: Fixed 3.3 V low-dropout positive voltage regulator. Pins are Vin (input), GND (ground), and Vout (regulated 3.3 V output). Includes protection features (current limit and thermal shutdown) per the LP2951 family.

Manufacturer

Manufacturer: Texas Instruments (TI). TI is a multinational American semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits.

Application

LP2951CM-3.3 is a fixed 3.3V low-dropout regulator. Applications: power supply for 3.3V digital/mixed-signal logic in battery-powered/portable gear; microcontrollers, DSPs, memories, and ASICs; sensors, RF/transceiver modules; embedded system rails; pre-regulation for analog front-ends; low-quiescent-current rail in portable instrumentation and audio/video gear.

Equivalent

Equivalent 3.3V fixed LDOs you can consider (cross-references; verify pinout and specs):
- LM1117-3.3
- AMS1117-3.3
- LD1117-3.3
- NCP1117-3.3
- TLV1117-3.3
- MCP1700-3.3
- MCP1825S-3.3
- LP2985-3.3
Note: pinouts and quiescent current vary; check datasheets for interchangeability and packaging.