Datasheets
LT1129CST-3.3#TRPBF by:

LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: 0°C to 70°C

Part Details for LT1129CST-3.3#TRPBF by Linear Technology

Results Overview of LT1129CST-3.3#TRPBF by Linear Technology

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LT1129CST-3.3#TRPBF Information

LT1129CST-3.3#TRPBF by Linear Technology 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.

Part Details for LT1129CST-3.3#TRPBF

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LT1129CST-3.3#TRPBF Part Data Attributes

LT1129CST-3.3#TRPBF Linear Technology
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LT1129CST-3.3#TRPBF Linear Technology LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: 0°C to 70°C
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer LINEAR TECHNOLOGY CORP
Part Package Code SOT
Package Description LEAD FREE , PLASTIC, SOT-223, 3 PIN
Pin Count 3
Manufacturer Package Code ST
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Adjustability FIXED
Dropout Voltage1-Max 0.7 V
Dropout Voltage1-Nom 0.45 V
Input Voltage Absolute-Max 30 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
Line Regulation-Max 0.01%
Load Regulation-Max 0.03%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min
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 3.03%
Width 3.505 mm

Alternate Parts for LT1129CST-3.3#TRPBF

This table gives cross-reference parts and alternative options found for LT1129CST-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 LT1129CST-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
LT1129IST-3.3#PBF Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IST-3.3#PBF
LT1129IST-3.3 Linear Technology $9.7138 LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IST-3.3
LT1129CST-3.3#TRPBF Analog Devices Inc $4.3904 Micropower Low Dropout Regulators with Shutdown LT1129CST-3.3#TRPBF vs LT1129CST-3.3#TRPBF
LT1129CST-3.3#TR Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: 0°C to 70°C LT1129CST-3.3#TRPBF vs LT1129CST-3.3#TR
LT1129IST-3.3#PBF Analog Devices Inc $6.8809 Micropower Low Dropout Regulators with Shutdown LT1129CST-3.3#TRPBF vs LT1129IST-3.3#PBF
LT1129IST-3.3 Analog Devices Inc Check for Price Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 LT1129CST-3.3#TRPBF vs LT1129IST-3.3
LT1129IST-3.3#TRPBF Analog Devices Inc $4.9209 Micropower Low Dropout Regulators with Shutdown LT1129CST-3.3#TRPBF vs LT1129IST-3.3#TRPBF
Part Number Manufacturer Composite Price Description Compare
LT1129IST-3.3#TRPBF Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IST-3.3#TRPBF
LT1129IST-3.3#TR Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IST-3.3#TR
LT1129IS8-3.3 Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IS8-3.3
LT1129CQ-3.3#PBF Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temperature Range: 0°C to 70°C LT1129CST-3.3#TRPBF vs LT1129CQ-3.3#PBF
LT1129CS8-3.3#TR Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C LT1129CST-3.3#TRPBF vs LT1129CS8-3.3#TR
LT1129IT-3.3#PBF Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: TO-220; Pins: 5; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IT-3.3#PBF
LT1129CQ-3.3 Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temperature Range: 0°C to 70°C LT1129CST-3.3#TRPBF vs LT1129CQ-3.3
LT1129IQ-3.3 Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IQ-3.3
LT1129IT-3.3 Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: TO-220; Pins: 5; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IT-3.3
LT1129IQ-3.3#TRPBF Linear Technology Check for Price LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temperature Range: -40°C to 85°C LT1129CST-3.3#TRPBF vs LT1129IQ-3.3#TRPBF

LT1129CST-3.3#TRPBF Related Parts

LT1129CST-3.3#TRPBF Frequently Asked Questions (FAQ)

  • The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and reliability.

  • To ensure a stable and accurate output voltage, make sure to use a high-quality output capacitor with a low ESR, and follow the recommended PCB layout guidelines in the datasheet.

  • The minimum input voltage required is 3.5V, but it's recommended to keep it above 4V for optimal performance.

  • The LT1129CST-3.3#TRPBF is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliability.

  • The output voltage tolerance is typically ±2% over the entire operating temperature range. You can calculate the output voltage tolerance by multiplying the nominal output voltage (3.3V) by the tolerance percentage (2%).

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