Part Details for LT1129CST-3.3#TR by Analog Devices Inc
Results Overview of LT1129CST-3.3#TR by Analog Devices Inc
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (9 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LT1129CST-3.3#TR Information
LT1129CST-3.3#TR 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 LT1129CST-3.3#TR
| Part # | Distributor | Description | Stock | Price | Buy | |
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Vyrian | Peripheral ICs | 751 |
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RFQ |
Part Details for LT1129CST-3.3#TR
LT1129CST-3.3#TR CAD Models
LT1129CST-3.3#TR Part Data Attributes
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LT1129CST-3.3#TR
Analog Devices Inc
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Datasheet
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LT1129CST-3.3#TR
Analog Devices Inc
Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | ANALOG DEVICES INC | |
| Package Description | SOP, | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| 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 | e0 | |
| 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 | ||
| 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) | 235 | |
| 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 | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 2.3 mm | |
| Terminal Position | SINGLE | |
| Time@Peak Reflow Temperature-Max (s) | 20 | |
| Voltage Tolerance-Max | 3% | |
| Width | 3.505 mm |
Alternate Parts for LT1129CST-3.3#TR
This table gives cross-reference parts and alternative options found for LT1129CST-3.3#TR. 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#TR, 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 |
|---|---|---|---|---|
| LT1129CST-3.3#TRPBF | Analog Devices Inc | $4.4387 | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3#TR vs LT1129CST-3.3#TRPBF |
| LT1129IST-3.3#PBF | Analog Devices Inc | $7.0766 | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3#TR 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#TR vs LT1129IST-3.3 |
| LT1129CST-3.3 | 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#TR vs LT1129CST-3.3 |
| LT1129IST-3.3#TRPBF | Analog Devices Inc | Check for Price | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3#TR vs LT1129IST-3.3#TRPBF |
| LT1129CST-3.3#TRPBF | 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#TR vs LT1129CST-3.3#TRPBF |
| 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#TR vs LT1129IST-3.3#PBF |
| 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#TR vs LT1129IST-3.3#TR |
| LT1129CST-3.3 | Analog Devices Inc | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 | LT1129CST-3.3#TR vs LT1129CST-3.3 |
LT1129CST-3.3#TR Frequently Asked Questions (FAQ)
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A good PCB layout for the LT1129CST-3.3#TR 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.
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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 doesn't introduce unwanted inductances or capacitances.
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The maximum input voltage that the LT1129CST-3.3#TR can handle is 15V, but it's recommended to keep the input voltage below 12V to ensure reliable operation and to prevent damage to the device.
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The LT1129CST-3.3#TR 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 reliable operation. Additionally, ensure that the device is properly heatsinked and that the PCB is designed to handle high temperatures.
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To troubleshoot issues with the LT1129CST-3.3#TR, start by checking the input and output voltages, and the output current. Verify that the input voltage is within the recommended range, and that the output voltage is within the specified tolerance. Check for signs of overheating, and ensure that the device is properly heatsinked. Also, check the PCB layout for any signs of noise or EMI, and ensure that the capacitors are properly selected and placed.