LP2951CMX/NOPB
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Texas Instruments LP2951CMX/NOPB

Manufacturer No:
LP2951CMX/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG LIN POS ADJ 100MA 8SOIC
Delivery:
Payment:
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Product Introduction

Overview

The LP2951CMX/NOPB is a micropower voltage regulator produced by Texas Instruments. It is part of the LP2951-N series, known for its very low quiescent current and low dropout voltage, making it ideal for battery-powered systems. This regulator offers high accuracy output voltage, ensured 100-mA output current, and extremely tight load and line regulation. The LP2951-N series is designed to minimize all contributions to the error budget, including a tight initial tolerance, good load and line regulation, and a very low output voltage temperature coefficient, making it useful as a low-power voltage reference.

Key Specifications

Parameter Value Unit
Input Voltage Range 2.3 V to 30 V V
Output Voltage Versions 5 V, 3 V, 3.3 V (and programmable from 1.24 V to 29 V) V
Output Current 100 mA mA
Quiescent Current 75 µA (typical) µA
Dropout Voltage 40 mV (typical at light loads), 380 mV (typical at 100 mA) mV
Operating Temperature Range -40°C to 125°C °C
Package Type SOIC (D) with 8 pins

Key Features

  • High accuracy output voltage with a tight initial tolerance (0.5% typical)
  • Extremely low quiescent current (75 µA typical)
  • Low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA)
  • Extremely tight load and line regulation (0.05% typical)
  • Very low temperature coefficient
  • Use as regulator or reference
  • Needs minimum capacitance for stability
  • Current and thermal limiting
  • Stable with low-ESR output capacitors (10 mΩ to 6 Ω)
  • Error flag output warns of output dropout
  • Logic-controlled electronic shutdown
  • Output programmable from 1.24 V to 29 V with external resistors

Applications

  • High-efficiency linear regulator
  • Regulator with undervoltage shutdown
  • Low dropout battery-powered regulator
  • Snap-ON/Snap-OFF regulator
  • Battery-powered systems requiring low power consumption and high accuracy voltage regulation

Q & A

  1. What is the input voltage range of the LP2951CMX/NOPB?

    The input voltage range is from 2.3 V to 30 V.

  2. What are the available output voltage versions for the LP2951-N?

    The available output voltage versions are 5 V, 3 V, and 3.3 V, and it can also be programmed from 1.24 V to 29 V with external resistors.

  3. What is the typical quiescent current of the LP2951-N?

    The typical quiescent current is 75 µA.

  4. What is the dropout voltage of the LP2951-N?

    The dropout voltage is typically 40 mV at light loads and 380 mV at 100 mA.

  5. What is the operating temperature range of the LP2951CMX/NOPB?

    The operating temperature range is from -40°C to 125°C.

  6. What package type is the LP2951CMX/NOPB available in?

    The LP2951CMX/NOPB is available in an SOIC (D) package with 8 pins.

  7. Does the LP2951-N have an error flag feature?
  8. Can the LP2951-N be shut down electronically?
  9. Is the LP2951-N stable with low-ESR output capacitors?
  10. What are some typical applications of the LP2951-N?

    The LP2951-N is typically used in high-efficiency linear regulators, regulators with undervoltage shutdown, low dropout battery-powered regulators, and snap-ON/snap-OFF regulators.

Product Attributes

Output Configuration:Positive
Output Type:Adjustable (Fixed)
Number of Regulators:1
Voltage - Input (Max):30V
Voltage - Output (Min/Fixed):1.235V (5V)
Voltage - Output (Max):29V
Voltage Dropout (Max):0.6V @ 100mA
Current - Output:100mA
Current - Quiescent (Iq):120 µA
Current - Supply (Max):14 mA
PSRR:- 
Control Features:Enable
Protection Features:Over Current, Over Temperature, Short Circuit
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number LP2951CMX/NOPB LP2951ACMX/NOPB LP2951CM/NOPB LP2951CMM/NOPB LP2951CMMX/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active
Output Configuration Positive Positive Positive Positive Positive
Output Type Adjustable (Fixed) Adjustable (Fixed) Adjustable (Fixed) Adjustable (Fixed) Adjustable (Fixed)
Number of Regulators 1 1 1 1 1
Voltage - Input (Max) 30V 30V 30V 30V 30V
Voltage - Output (Min/Fixed) 1.235V (5V) 1.235V (5V) 1.235V (5V) 1.235V (5V) 1.235V (5V)
Voltage - Output (Max) 29V 29V 29V 29V 29V
Voltage Dropout (Max) 0.6V @ 100mA 0.6V @ 100mA 0.6V @ 100mA 0.6V @ 100mA 0.6V @ 100mA
Current - Output 100mA 100mA 100mA 100mA 100mA
Current - Quiescent (Iq) 120 µA 120 µA 120 µA 120 µA 120 µA
Current - Supply (Max) 14 mA 14 mA 14 mA 14 mA 14 mA
PSRR - - - - -
Control Features Enable Enable Enable Enable Enable
Protection Features Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit Over Current, Over Temperature, Short Circuit
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-VSSOP 8-VSSOP

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