Part Details for LT1959IS8#TRPBF by Linear Technology
Results Overview of LT1959IS8#TRPBF by Linear Technology
- Distributor Offerings: (2 listings)
- 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.
Applications
Energy and Power Systems
Transportation and Logistics
Renewable Energy
Automotive
LT1959IS8#TRPBF Information
LT1959IS8#TRPBF by Linear Technology is a Switching Regulator or Controller.
Switching Regulator or Controllers 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 LT1959IS8#TRPBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
2156-LT1959IS8#TRPBF-ND
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DigiKey | IC REG BUCK SEPIC ADJ 4.5A 8SO Min Qty: 35 Lead time: 1 Weeks Container: Bulk MARKETPLACE PRODUCT |
185 In Stock |
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$8.5900 | Buy Now |
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Rochester Electronics | LT1959 - 4.5A, 500kHz Step-Down Switching Regulator RoHS: Compliant Status: Active Min Qty: 1 | 185 |
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$6.6100 / $8.2600 | Buy Now |
Part Details for LT1959IS8#TRPBF
LT1959IS8#TRPBF CAD Models
LT1959IS8#TRPBF Part Data Attributes
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LT1959IS8#TRPBF
Linear Technology
Buy Now
Datasheet
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Compare Parts:
LT1959IS8#TRPBF
Linear Technology
LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
Select a part to compare: |
| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | LINEAR TECHNOLOGY CORP | |
| Part Package Code | SOIC | |
| Package Description | 0.150 INCH, PLASTIC, SO-8 | |
| Pin Count | 8 | |
| Manufacturer Package Code | S8 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Control Mode | CURRENT-MODE | |
| Input Voltage-Max | 15 V | |
| Input Voltage-Min | 4.3 V | |
| Input Voltage-Nom | 5 V | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e3 | |
| Length | 4.9 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Output Current-Max | 8.5 A | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 mm | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK | |
| Switching Frequency-Max | 560 kHz | |
| Technology | BIPOLAR | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Width | 3.9 mm |
Alternate Parts for LT1959IS8#TRPBF
This table gives cross-reference parts and alternative options found for LT1959IS8#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 LT1959IS8#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 |
|---|---|---|---|---|
| LT1959CS8#TR | Linear Technology | Check for Price | LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C | LT1959IS8#TRPBF vs LT1959CS8#TR |
| LT1959IS8 | Linear Technology | Check for Price | LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C | LT1959IS8#TRPBF vs LT1959IS8 |
LT1959IS8#TRPBF Frequently Asked Questions (FAQ)
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A good PCB layout for the LT1959IS8 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a Kelvin connection for the output voltage sense pins to reduce noise and improve accuracy.
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To ensure the LT1959IS8 operates within its SOA, you should monitor the device's junction temperature, input voltage, and output current. Make sure the device is not exposed to excessive temperatures, and that the input voltage and output current are within the recommended operating ranges. You can use thermal modeling and simulation tools to estimate the device's junction temperature.
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The recommended input capacitor type for the LT1959IS8 is a low-ESR ceramic capacitor with a value of 10uF to 22uF. This helps to filter out high-frequency noise and ensure stable operation. However, the optimal input capacitor value may vary depending on the specific application and input voltage ripple requirements.
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To troubleshoot oscillations or instability issues with the LT1959IS8, start by checking the PCB layout and ensuring that it follows the recommended layout guidelines. Next, verify that the input and output capacitors are properly selected and placed. Check for any signs of noise or ringing on the input and output voltage rails, and ensure that the device is not operating near its maximum current or voltage ratings. You can also try adding additional decoupling capacitors or modifying the compensation network to improve stability.
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The maximum allowed output voltage ripple for the LT1959IS8 depends on the specific application requirements. However, as a general guideline, the output voltage ripple should be kept below 1% of the nominal output voltage to ensure reliable operation. You can use output capacitors with low ESR and high capacitance to minimize output voltage ripple.