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LP2950CDTX-5.0

Name: LP2950CDTX-5.0
Rating: 4.7 (12 reviews)

LP2950 -FIXED MICROPOWER VOLTAGE

제조업체
Mfr.부분 #LP2950CDTX-5.0
패키지 TO-252-3
데이터시트
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사양

Package	Bulk
ProductStatus	Active

개요

Description

LP2950CDTX-5.0 is a fixed 5 V low-dropout regulator (LDO) in the LP2950 family. It accepts inputs above 5 V and provides a regulated 5 V output with a small dropout voltage (about 0.5 V at moderate loads). It includes standard LDO protections (overcurrent and thermal shutdown) and is suitable for battery-powered or portable electronics due to its simple, low-power operation. The CDTX suffix indicates the specific package variant; pinout depends on the package (typical fixed-version: Vin, GND, Vout; verify with the datasheet for exact arrangement). For stability, use the recommended input and output capacitors (a capacitor on the input and a few microfarads with appropriate ESR on the output). Common uses include microcontroller rails, sensors, and other 5 V subsystems in compact, cost-effective designs. In short: a compact, fixed 5 V LDO for moderate-current applications with built-in protection and straightforward use.

Features

Here are the key features of LP2950CDTX-5.0 (5.0 V fixed output):
- Fixed 5.0 V output
- Up to ~100 mA load current
- Low dropout voltage (about 0.5 V at 100 mA)
- Very low quiescent current for battery-powered use
- Good line and load regulation
- Internal current limit and thermal/shutdown protection
- Short-circuit protection
- Requires external capacitors for stability: input cap (≥0.33 µF) and output cap (≥10 µF, with suitable ESR)
- Wide input voltage range (works with inputs above the dropout to regulate reliably)
Note: Packaged in CDTX variant and intended for use with proper external capacitors to ensure stability and performance.

Package

SOT-223 surface-mount package. (DT/DTX suffixes indicate SOT-223; TX means taped & reeled.)

Pinout

- Pin count: 3 signal pins plus a mounting/heatsink tab (tab tied to ground).
- Function: fixed 5.0 V low-dropout linear regulator (LP2950CDTX-5.0).
- Pin assignment (looking at package front, left-to-right): Pin 1 = GND, Pin 2 = OUTPUT (5.0 V), Pin 3 = INPUT. Tab = GND.
- Notes: micropower LDO, typically rated for up to ~100 mA output; requires input a few hundred mV above 5.0 V (dropout depends on load).

Manufacturer

Manufacturer: Texas Instruments (TI). TI is an American multinational corporation that designs and manufactures semiconductors and related electronics; it acquired National Semiconductor, so LP2950 devices are now produced under the TI brand. TI specializes in analog and mixed-signal integrated circuits.

Application

LP2950CDTX-5.0 is a 5V fixed-output low-dropout regulator. Typical applications:
- Power supply for microcontrollers, DSPs, and memories in consumer electronics
- Battery-powered portable devices needing low dropout and good regulation
- Post-regulation for sensors, analog front-ends, and op-amps requiring a clean 5V rail
- Embedded systems, development boards, and small instruments
- General 5V rail generation in set-top boxes, audio/video gear, and instrumentation

Equivalent

Common equivalents to LP2950CDTX-5.0 (5 V, 100 mA LDO) include:
- AMS1117-5.0
- LM1117-5.0
- TLV1117-5.0
- NCP1117-5.0
- MIC5205-5.0
- MCP1700-5.0
Note: pinouts, packages, and dropout can differ; check datasheets for footprint and performance before substitution.