Part Details for LTC3859IUHF#PBF by Linear Technology
Results Overview of LTC3859IUHF#PBF by Linear Technology
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (7 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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Energy and Power Systems
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LTC3859IUHF#PBF Information
LTC3859IUHF#PBF 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.
Part Details for LTC3859IUHF#PBF
LTC3859IUHF#PBF CAD Models
LTC3859IUHF#PBF Part Data Attributes
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LTC3859IUHF#PBF
Linear Technology
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Datasheet
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LTC3859IUHF#PBF
Linear Technology
LTC3859 - Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller; Package: QFN; Pins: 38; Temperature Range: -40°C to 85°C
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| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | LINEAR TECHNOLOGY CORP | |
| Part Package Code | QFN | |
| Package Description | 5 X 7 MM, LEAD FREE, PLASTIC, MO-220WHKD, QFN-38 | |
| Pin Count | 38 | |
| Manufacturer Package Code | UHF | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 24V | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Control Mode | CURRENT-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 38 V | |
| Input Voltage-Min | 4.5 V | |
| Input Voltage-Nom | 12 V | |
| JESD-30 Code | R-PQCC-N38 | |
| JESD-609 Code | e3 | |
| Length | 7 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 38 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Voltage-Nom | 5.4 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | HVQCCN | |
| Package Equivalence Code | LCC38,.2X.28,20 | |
| Package Shape | RECTANGULAR | |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 0.8 mm | |
| Surface Mount | YES | |
| Switcher Configuration | PUSH-PULL | |
| Switching Frequency-Max | 900 kHz | |
| Technology | CMOS | |
| Temperature Grade | AUTOMOTIVE | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | NO LEAD | |
| Terminal Pitch | 0.5 mm | |
| Terminal Position | QUAD | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 5 mm |
Alternate Parts for LTC3859IUHF#PBF
This table gives cross-reference parts and alternative options found for LTC3859IUHF#PBF. 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 LTC3859IUHF#PBF, 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 |
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| LTC3859EUHF#PBF | Analog Devices Inc | $6.2155 | Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller | LTC3859IUHF#PBF vs LTC3859EUHF#PBF |
| LTC3859IUHF#PBF | Analog Devices Inc | $7.0765 | Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller | LTC3859IUHF#PBF vs LTC3859IUHF#PBF |
| LTC3859EUHF#TRPBF | Analog Devices Inc | Check for Price | Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller | LTC3859IUHF#PBF vs LTC3859EUHF#TRPBF |
| LTC3859IUHF#TRPBF | Analog Devices Inc | Check for Price | Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller | LTC3859IUHF#PBF vs LTC3859IUHF#TRPBF |
| LTC3859EUHF#TRPBF | Linear Technology | Check for Price | LTC3859 - Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller; Package: QFN; Pins: 38; Temperature Range: -40°C to 85°C | LTC3859IUHF#PBF vs LTC3859EUHF#TRPBF |
| LTC3859IUHF#TRPBF | Linear Technology | Check for Price | LTC3859 - Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller; Package: QFN; Pins: 38; Temperature Range: -40°C to 85°C | LTC3859IUHF#PBF vs LTC3859IUHF#TRPBF |
| LTC3859EUHF#PBF | Linear Technology | Check for Price | LTC3859 - Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller; Package: QFN; Pins: 38; Temperature Range: -40°C to 85°C | LTC3859IUHF#PBF vs LTC3859EUHF#PBF |
LTC3859IUHF#PBF Frequently Asked Questions (FAQ)
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The maximum input voltage that can be applied to the LTC3859IUHF is 28V, but it's recommended to keep it below 24V for reliable operation.
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The compensation network can be optimized by following the guidelines in the datasheet and using the provided equations to calculate the values of the compensation components. Additionally, simulation tools such as LTspice can be used to fine-tune the compensation network.
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The recommended layout and placement for the LTC3859IUHF involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the traces between the device and the capacitors. A 4-layer PCB with a dedicated power plane is also recommended.
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Thermal management of the LTC3859IUHF involves providing adequate heat sinking, such as using a thermal pad or a heat sink, and ensuring good airflow around the device. The device's thermal resistance and maximum junction temperature should also be considered when designing the thermal management system.
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The LTC3859IUHF has a higher input voltage range and a lower quiescent current compared to other similar devices from Linear Technology. It also has a more comprehensive set of protection features, including overvoltage protection and undervoltage lockout.