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Power Circuits / Linear Regulator ICs / LT1129MPST-3.3#PBF
Datasheets
LT1129MPST-3.3#PBF by:

Micropower Low Dropout Regulators with Shutdown

Part Details for LT1129MPST-3.3#PBF by Analog Devices Inc

Results Overview of LT1129MPST-3.3#PBF by Analog Devices Inc

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LT1129MPST-3.3#PBF Information

LT1129MPST-3.3#PBF by Analog Devices Inc is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for LT1129MPST-3.3#PBF

Part # Distributor Description Stock Price Buy
DISTI # 50AK4608
Newark Ldo, Fixed, 3.3V, 0.7A, Sot-223-3, Output Type:Fixed, Input Voltage Min:4.15V, Input Voltage Max:30V, No. Of Outputs:-, Output Voltage Min:-, Output Voltage Max:-, Polarity:-, Ic Mounting:Surface Mount, Ic Case/Package:Sot-223 Rohs Compliant: Yes |Analog Devices LT1129MPST-3.3#PBF RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 134
  • 1 $21.9500
  • 5 $19.2800
  • 10 $16.6000
  • 25 $16.5900
  • 50 $15.0400
  • 156 $14.8700
$14.8700 / $21.9500 Buy Now
DISTI # LT1129MPST-3.3#PBF-ND
DigiKey IC REG LIN 3.3V 700MA SOT-223-3 Min Qty: 1 Lead time: 10 Weeks Container: Tube 175
In Stock
  • 1 $22.1200
  • 10 $15.8080
  • 78 $13.0626
$13.0626 / $22.1200 Buy Now
DISTI # 584-1129MPST-3.3PBF
Mouser Electronics LDO Voltage Regulators uP L Drop Regs w/ SD RoHS: Compliant 2006
  • 1 $21.9500
  • 10 $16.6000
  • 25 $16.5900
  • 50 $15.0400
  • 78 $14.8700
  • 546 $14.6100
$14.6100 / $21.9500 Buy Now
DISTI # V36:1790_06414796
Arrow Electronics LDO Regulator Pos 3.3V 0.7A 4-Pin(3+Tab) SOT-223 Tube Min Qty: 78 Package Multiple: 78 Lead time: 10 Weeks Date Code: 2005 Americas - 80
  • 78 $13.0300
  • 546 $12.9000
$12.9000 / $13.0300 Buy Now
Analog Devices Inc uP L Drop Regs w/ SD Package Multiple: 78 1595
  • 1 $22.1200
  • 10 $15.8080
  • 1,000 $10.4500
$10.4500 / $22.1200 Buy Now
DISTI # LT1129MPST-3.3P
Richardson RFPD VOLTAGE REGULATOR RoHS: Compliant Min Qty: 78 0
  • 78 $15.6800
  • 100 $14.8000
  • 500 $14.4000
  • 1,000 $14.0300
  • 5,000 $13.4900
$13.4900 / $15.6800 Buy Now

Part Details for LT1129MPST-3.3#PBF

LT1129MPST-3.3#PBF CAD Models

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LT1129MPST-3.3#PBF Part Data Attributes

Parametric Data
LT1129MPST-3.3#PBF Analog Devices Inc
Buy Now Datasheet
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LT1129MPST-3.3#PBF Analog Devices Inc Micropower Low Dropout Regulators with Shutdown
Pbfree Code No
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ANALOG DEVICES INC
Package Description LEAD FREE , PLASTIC, SOT-223, 3 PIN
Pin Count 3
Manufacturer Package Code 05-08-1630
Reach Compliance Code not_compliant
Samacsys Manufacturer Analog Devices
Dropout Voltage1-Max 0.7 V
Input Voltage-Max 20 V
Input Voltage-Min 3.8 V
JESD-30 Code R-PSSO-G3
JESD-609 Code e3
Length 6.505 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -55 °C
Output Current1-Max 0.7 A
Output Voltage1-Max 3.4 V
Output Voltage1-Min 3.2 V
Output Voltage1-Nom 3.3 V
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOT-223
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 1.8 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 2.3 mm
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tolerance-Max 3%
Width 3.505 mm

Alternate Parts for LT1129MPST-3.3#PBF

This table gives cross-reference parts and alternative options found for LT1129MPST-3.3#PBF. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LT1129MPST-3.3#PBF, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LT1129MPST-3.3 Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: -55°C to 125°C LT1129MPST-3.3#PBF vs LT1129MPST-3.3
LT1129MPST-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 LT1129MPST-3.3#PBF vs LT1129MPST-3.3
Part Number Manufacturer Composite Price Description Compare
LT1129CS8-3.3#PBF Analog Devices Inc $4.2231 Micropower Low Dropout Regulators with Shutdown LT1129MPST-3.3#PBF vs LT1129CS8-3.3#PBF
LT1129IS8-3.3#PBF Analog Devices Inc $5.8771 Micropower Low Dropout Regulators with Shutdown LT1129MPST-3.3#PBF vs LT1129IS8-3.3#PBF
LT1129IT-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSFM5 LT1129MPST-3.3#PBF vs LT1129IT-3.3
TC1265-3.3VOA Telcom Semiconductor Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, CMOS, PDSO8, SOIC-8 LT1129MPST-3.3#PBF vs TC1265-3.3VOA
SPX1129M3-3.3-L Exar Corporation Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PDSO4, LEAD FREE, SOT-223, 3 PIN LT1129MPST-3.3#PBF vs SPX1129M3-3.3-L
LT1129MPST-3.3#TR Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 LT1129MPST-3.3#PBF vs LT1129MPST-3.3#TR
LT1129IST-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 LT1129MPST-3.3#PBF vs LT1129IST-3.3
LT1129IS8-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PDSO8 LT1129MPST-3.3#PBF vs LT1129IS8-3.3
LT1129IT-3.3#PBF Analog Devices Inc Check for Price Micropower Low Dropout Regulators with Shutdown LT1129MPST-3.3#PBF vs LT1129IT-3.3#PBF
SPX1129R-3.3-L/TR Exar Corporation Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO2, LEAD FREE, TO-252, 3 PIN LT1129MPST-3.3#PBF vs SPX1129R-3.3-L/TR

LT1129MPST-3.3#PBF Frequently Asked Questions (FAQ)

  • A good PCB layout for the LT1129 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce noise and EMI.

  • To ensure stability, make sure to follow the recommended compensation network values, use a minimum output capacitance of 10uF, and avoid using capacitors with high ESR values.

  • The LT1129 can handle input voltages up to 15V, but it's recommended to keep the input voltage below 12V for optimal performance and reliability.

  • The LT1129 is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures to ensure reliability.

  • The output voltage ripple of the LT1129 can be calculated using the formula: ΔVout = (Iout x Rload) / (fsw x Cout), where Iout is the output current, Rload is the load resistance, fsw is the switching frequency, and Cout is the output capacitance.

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