Part Details for LT1129CS8-5#TRPBF by Linear Technology
Results Overview of LT1129CS8-5#TRPBF by Linear Technology
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (2 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.
LT1129CS8-5#TRPBF Information
LT1129CS8-5#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.
Price & Stock for LT1129CS8-5#TRPBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 32 |
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RFQ |
Part Details for LT1129CS8-5#TRPBF
LT1129CS8-5#TRPBF CAD Models
LT1129CS8-5#TRPBF Part Data Attributes
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LT1129CS8-5#TRPBF
Linear Technology
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Datasheet
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LT1129CS8-5#TRPBF
Linear Technology
LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C
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| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | LINEAR TECHNOLOGY CORP | |
| Part Package Code | SOIC | |
| Package Description | 0.150 INCH, LEAD FREE, PLASTIC, SO-8 | |
| Pin Count | 8 | |
| Manufacturer Package Code | S8 | |
| Reach Compliance Code | 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 | 5.5 V | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e3 | |
| Length | 4.9025 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 | 8 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | ||
| Output Current1-Max | 0.7 A | |
| Output Voltage1-Max | 5.15 V | |
| Output Voltage1-Min | 4.85 V | |
| Output Voltage1-Nom | 5 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| 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 | 1.752 mm | |
| Surface Mount | YES | |
| Technology | BIPOLAR | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Voltage Tolerance-Max | 3% | |
| Width | 3.899 mm |
Alternate Parts for LT1129CS8-5#TRPBF
This table gives cross-reference parts and alternative options found for LT1129CS8-5#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 LT1129CS8-5#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 |
|---|---|---|---|---|
| LT1129CS8-5#TR | Linear Technology | Check for Price | LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C | LT1129CS8-5#TRPBF vs LT1129CS8-5#TR |
| LT1129CS8-5#TR | Analog Devices Inc | Check for Price | Fixed Positive LDO Regulator, 5V, 0.7V Dropout, PDSO8 | LT1129CS8-5#TRPBF vs LT1129CS8-5#TR |
LT1129CS8-5#TRPBF Frequently Asked Questions (FAQ)
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The recommended PCB layout for the LT1129CS8-5#TRPBF involves keeping the input and output traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is also recommended.
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To ensure stability and prevent oscillations, it's essential to follow the recommended compensation network and component values, ensure a low-ESR output capacitor, and minimize the loop area of the feedback network. Additionally, a small ceramic capacitor (e.g., 10nF) can be added between the VOUT and GND pins to improve stability.
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The maximum ambient temperature for reliable operation of the LT1129CS8-5#TRPBF is 85°C. However, the device can operate up to 125°C with derating. It's essential to ensure proper thermal management and heat sinking to maintain a safe operating temperature.
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While the datasheet recommends a specific output capacitor type and value, it's possible to use a different type or value. However, this may affect the regulator's stability and performance. It's essential to evaluate the capacitor's ESR, ESL, and capacitance value to ensure it meets the recommended specifications.
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To protect the LT1129CS8-5#TRPBF from input voltage transients and surges, it's recommended to add a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit at the input. This will help absorb or clamp voltage spikes and prevent damage to the device.