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LP2950-33LPRE3

Low Dropout Regulator

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Overview of LP2950-33LPRE3

The LP2950-33LPRE3 is a low dropout (LDO) voltage regulator IC capable of outputting a fixed 3.3V voltage with high accuracy and low quiescent current.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VIN: Input voltage
  • VOUT: Output voltage (3.3V)
  • GND: Ground
  • Enable: Enable pin for turning the regulator on/off
  • Bypass: Bypass pin for improving transient response

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LP2950-33LPRE3 IC for a visual representation.

Key Features

  • Fixed Output Voltage: Provides a stable 3.3V output voltage suitable for powering various components.
  • Low Dropout Voltage: Works with very small voltage differentials between input and output (typically 100mV at 100mA).
  • Low Quiescent Current: Consumes minimal current in standby or idle mode, conserving power.
  • Enable Function: Includes an enable pin for controlling the regulator's output state.
  • Bypass Pin: Allows for improving transient response by connecting an external capacitor.

Note: For detailed technical specifications, please refer to the LP2950-33LPRE3 datasheet.

Application

  • Embedded Systems: Ideal for providing a stable 3.3V supply to microcontrollers and other embedded devices.
  • Power Management: Used in various power management applications where a precise 3.3V output is required.
  • Battery-Powered Devices: Suitable for battery-operated devices needing efficient voltage regulation.

Functionality

The LP2950-33LPRE3 is an LDO voltage regulator IC that maintains a constant 3.3V output voltage even when the input voltage varies slightly. It ensures reliable and efficient power delivery in electronic circuits.

Usage Guide

  • Input Power: Connect VIN (Pin 1) to the input voltage source.
  • Output Power: VOUT (Pin 2) provides a regulated 3.3V output voltage.
  • Control: Use the Enable (Pin 3) pin to enable or disable the regulator's output.

Frequently Asked Questions

Q: What is the dropout voltage of the LP2950-33LPRE3?
A: The LP2950-33LPRE3 has a low dropout voltage, typically around 100mV at 100mA load.

Q: Is the LP2950-33LPRE3 suitable for battery-powered applications?
A: Yes, the LP2950-33LPRE3 is ideal for battery-powered devices due to its low quiescent current and efficient voltage regulation capabilities.

Equivalent

For similar functionalities, consider these alternatives to the LP2950-33LPRE3:

  • LM1117-3.3: Another popular LDO regulator IC offering a fixed 3.3V output with similar dropout characteristics.
  • NCP1117ST33T3G: A low dropout voltage regulator IC providing a fixed 3.3V output suitable for various applications.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Output options Fixed Output Iout (max) (A) 0.1
Vin (max) (V) 30 Vin (min) (V) 2
Vout (max) (V) 5 Vout (min) (V) 3
Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 100
Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 97
Rating Catalog Load capacitance (min) (µF) 1
Regulated outputs (#) 1 Accuracy (%) 3
PSRR at 100 KHz (dB) 57 Dropout voltage (Vdo) (typ) (mV) 110
Operating temperature range (°C) -40 to 125

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