LP2951ACMMX-3.3
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Texas Instruments LP2951ACMMX-3.3

Manufacturer No:
LP2951ACMMX-3.3
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG LIN POS ADJ 100MA 8VSSOP
Delivery:
Payment:
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Product Introduction

Overview

The Texas Instruments LP2951ACMMX-3.3/NOPB is a high-accuracy, low-dropout linear voltage regulator designed for a wide range of applications, particularly in battery-powered systems. This regulator offers a fixed output voltage of 3.3V and is known for its extremely low quiescent current, low dropout voltage, and tight load and line regulation. The LP2951ACMMX-3.3/NOPB features an error flag output for detecting low output voltage and a logic-compatible shutdown input, making it versatile and reliable for various power management needs.

Key Specifications

ParameterValue
ManufacturerTexas Instruments
Part NumberLP2951ACMMX-3.3/NOPB
PackageVSSOP-8-0.65mm
Output Voltage3.3V
Input Voltage Range2.3V to 30V
Output Current100mA
Quiescent Current (typ)75µA
Dropout Voltage (typ)380mV at 100mA
Load Regulation0.04% to 0.1%
Line Regulation0.03% to 0.2%
Operating Temperature-40°C to +125°C
Thermal Resistance θJA43, 56, 118, 171°C/W

Key Features

  • High accuracy output voltage with ±2.5% accuracy
  • Extremely low quiescent current of 75µA typical
  • Low dropout voltage of 380mV at 100mA
  • Tight load and line regulation
  • Very low temperature coefficient
  • Error flag output for detecting low output voltage
  • Logic-controlled electronic shutdown
  • Output programmable from 1.24V to 29V using external resistors
  • Stable with low-ESR output capacitors (10mΩ to 6Ω)
  • Current and thermal limiting

Applications

  • High-efficiency linear regulators in battery-powered systems
  • Regulators with undervoltage shutdown
  • Low dropout battery-powered regulators
  • Snap-ON/Snap-OFF regulators
  • General power management in low-power devices

Q & A

  1. What is the output voltage of the LP2951ACMMX-3.3/NOPB?
    The output voltage is fixed at 3.3V.
  2. What is the input voltage range for this regulator?
    The input voltage range is from 2.3V to 30V.
  3. What is the maximum output current of the LP2951ACMMX-3.3/NOPB?
    The maximum output current is 100mA.
  4. What is the typical quiescent current of this regulator?
    The typical quiescent current is 75µA.
  5. Does the LP2951ACMMX-3.3/NOPB have an error flag feature?
    Yes, it has an error flag output that warns of output dropout.
  6. Can the output voltage be programmed?
    Yes, the output voltage can be programmed from 1.24V to 29V using external resistors.
  7. What is the operating temperature range of the LP2951ACMMX-3.3/NOPB?
    The operating temperature range is -40°C to +125°C.
  8. Is the LP2951ACMMX-3.3/NOPB stable with low-ESR capacitors?
    Yes, it is stable with low-ESR output capacitors (10mΩ to 6Ω).
  9. Does the regulator have current and thermal limiting features?
    Yes, it includes current and thermal limiting features.
  10. What package type is the LP2951ACMMX-3.3/NOPB available in?
    The regulator is available in a VSSOP-8-0.65mm package.

Product Attributes

Output Configuration:Positive
Output Type:Adjustable (Fixed)
Number of Regulators:1
Voltage - Input (Max):30V
Voltage - Output (Min/Fixed):1.235V (3.3V)
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-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:8-VSSOP
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Similar Products

Part Number LP2951ACMMX-3.3 LP2951ACMX-3.3 LP2951CMMX-3.3 LP2951ACMM-3.3 LP2951ACMMX-3.0
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments National Semiconductor
Product Status Obsolete Obsolete Obsolete Not For New Designs Obsolete
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 (3.3V) 1.235V (3.3V) 1.235V (3.3V) 1.235V (3.3V) 1.235V (3V)
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-TSSOP, 8-MSOP (0.118", 3.00mm 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) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP 8-SOIC 8-VSSOP 8-VSSOP 8-VSSOP

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