Datasheets
LT1129MPST-3.3#TRPBF by:

Micropower Low Dropout Regulators with Shutdown

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

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

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LT1129MPST-3.3#TRPBF Information

LT1129MPST-3.3#TRPBF 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#TRPBF

Part # Distributor Description Stock Price Buy
DISTI # LT1129MPST-3.3#TRPBF-ND
DigiKey IC REG LIN 3.3V 700MA SOT-223-3 Min Qty: 2000 Lead time: 10 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 2,000 $13.0625
$13.0625 Buy Now
DISTI # 584-1129MPST-3.3TPF
Mouser Electronics LDO Voltage Regulators uP L Drop Regs w/ SD RoHS: Compliant 0
  • 2,000 $13.0600
$13.0600 Order Now
Analog Devices Inc uP L Drop Regs w/ SD Min Qty: 2000 Package Multiple: 2000 0
  • 1 $14.8100
  • 1,000 $10.4500
  • 2,000 $13.0625
$10.4500 / $14.8100 Buy Now
DISTI # LT1129MPST-3.3T
Richardson RFPD VOLTAGE REGULATOR RoHS: Compliant Min Qty: 2000 0
  • 2,000 $14.0300
  • 5,000 $13.4900
$13.4900 / $14.0300 Buy Now
Vyrian Peripheral ICs 1153
RFQ

Part Details for LT1129MPST-3.3#TRPBF

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LT1129MPST-3.3#TRPBF Part Data Attributes

LT1129MPST-3.3#TRPBF Analog Devices Inc
Buy Now Datasheet
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LT1129MPST-3.3#TRPBF 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
Packing Method TR
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#TRPBF

This table gives cross-reference parts and alternative options found for LT1129MPST-3.3#TRPBF. 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#TRPBF, 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#TR 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#TRPBF vs LT1129MPST-3.3#TR
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#TRPBF vs LT1129CS8-3.3#PBF
LT1129IS8-3.3#PBF Analog Devices Inc $5.8771 Micropower Low Dropout Regulators with Shutdown LT1129MPST-3.3#TRPBF vs LT1129IS8-3.3#PBF
LT1129MPST-3.3#TR Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 LT1129MPST-3.3#TRPBF vs LT1129MPST-3.3#TR
LT1129IT-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSFM5 LT1129MPST-3.3#TRPBF 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#TRPBF 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#TRPBF vs SPX1129M3-3.3-L
LT1129IST-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 LT1129MPST-3.3#TRPBF 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#TRPBF vs LT1129IS8-3.3
LT1129IT-3.3#PBF Analog Devices Inc Check for Price Micropower Low Dropout Regulators with Shutdown LT1129MPST-3.3#TRPBF 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#TRPBF vs SPX1129R-3.3-L/TR

LT1129MPST-3.3#TRPBF Frequently Asked Questions (FAQ)

  • A good PCB layout for the LT1129MPST-3.3 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. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.

  • To ensure stability, make sure to follow the recommended capacitor values and types, and keep the output capacitor ESR within the recommended range. Also, avoid using capacitors with high ESL or ESR, and keep the input and output capacitors close to the device. Additionally, ensure that the PCB layout is well-designed and does not introduce unwanted inductance or capacitance.

  • The maximum input voltage that can be applied to the LT1129MPST-3.3 is 15V, but it's recommended to keep the input voltage below 12V to ensure reliable operation and to prevent damage to the device.

  • The LT1129MPST-3.3 is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures, and to ensure good thermal design and heat sinking to keep the device temperature within the recommended range.

  • To troubleshoot issues with the LT1129MPST-3.3, start by checking the input voltage, output voltage, and output current. Verify that the input and output capacitors are properly connected and meet the recommended specifications. Check the PCB layout for any signs of noise or EMI, and ensure that the device is properly soldered and connected. If the issue persists, consult the datasheet and application notes, or contact Analog Devices' technical support for further assistance.

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