LP2950CDTX-5.0

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LP2950CDTX-5.0

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LP2950 -FIXED MICROPOWER VOLTAGE

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Présentation

Description

LP2950CDTX-5.0 is a fixed 5 V low-dropout (LDO) regulator from the LP2950 family. It provides a regulated 5 V output, typically up to about 100 mA of load current, with a dropout around 0.5 V at that load. It features low quiescent current, making it suitable for battery-powered designs. It requires external capacitors for stability: at least 1 µF low-ESR output capacitor close to the regulator, and a small input capacitor (~0.33 µF) near the input. Input voltage can go up to about 26 V (check datasheet for exact limits). The CDTX suffix denotes a specific package/variant; refer to the datasheet for the exact pinout and packaging. Applications include microcontrollers, sensors, and other circuits needing a simple, inexpensive 5 V supply. Limitations: not suitable for high-current or high-transient-load applications and must be properly heat-sinked/placed with decoupling capacitors.

Equivalent

Equivalents to LP2950CDTX-5.0 (5V fixed LDO, ~100 mA) include:
- AMS1117-5.0
- LD1117V50 / LD1117-5.0
- NCP1117-5.0
- LT1763-5.0
- LP2980-5.0
- MCP1700-5.0
Note: dropout, quiescent current, pinout, and package vary—verify specs and packaging for your design.

Features

Here are the main features of LP2950CDTX-5.0 (5.0 V fixed output LDO):
- Fixed output: 5.0 V
- Low dropout: about 0.5 V at 100 mA
- Output current: up to ~100 mA
- Low quiescent current (very efficient for battery apps)
- Internal protection: short-circuit protection and thermal shutdown
- Requires output capacitor for stability (typical 4.7 µF to 22 µF, low ESR)
- Wide input voltage range (suitable up to around 26 V)
- Good line and load regulation and transient response
- Available in multiple packages (e.g., device variants in common packages)
Note: Always check the specific datasheet for exact package, pinout, and capacitor ESR requirements.

Pinout

Pin count: 3.
Function: Fixed 5.0V low-dropout regulator (three-terminal LDO) that provides a regulated 5V output from an input voltage. Pins are input, ground, and output.

Manufacturer

- Manufacturer: Texas Instruments (TI). The LP2950CDTX-5.0 was originally from National Semiconductor and TI acquired NSC in 2011, now producing it.
- Company type: TI is a multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits.

Package

LP2950CDTX-5.0 is the fixed 5.0 V version in a SOT-223 surface-mount package (three leads). Through-hole versions exist in other suffixes/packaging.

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