Part Details for LTC1735IS-1 by Analog Devices Inc
Results Overview of LTC1735IS-1 by Analog Devices Inc
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (1 replacement)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (9 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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LTC1735IS-1 Information
LTC1735IS-1 by Analog Devices Inc 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 LTC1735IS-1
LTC1735IS-1 CAD Models
LTC1735IS-1 Part Data Attributes
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LTC1735IS-1
Analog Devices Inc
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Datasheet
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LTC1735IS-1
Analog Devices Inc
Switching Controller, Current-mode, 3A, 550kHz Switching Freq-Max, CMOS, PDSO16
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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 | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Control Mode | CURRENT-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 36 V | |
| Input Voltage-Min | 3.5 V | |
| Input Voltage-Nom | 15 V | |
| JESD-30 Code | R-PDSO-G16 | |
| JESD-609 Code | e0 | |
| Length | 9.9 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 16 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 3 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 | PUSH-PULL | |
| Switching Frequency-Max | 550 kHz | |
| Technology | CMOS | |
| Temperature Grade | INDUSTRIAL | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Width | 3.9 mm |
Alternate Parts for LTC1735IS-1
This table gives cross-reference parts and alternative options found for LTC1735IS-1. 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 LTC1735IS-1, 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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| LTC1735CS-1 | Analog Devices Inc | Check for Price | Switching Controller, Current-mode, 3A, 550kHz Switching Freq-Max, CMOS, PDSO16 | LTC1735IS-1 vs LTC1735CS-1 |
LTC1735IS-1 Frequently Asked Questions (FAQ)
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The datasheet provides some general guidelines, but a good rule of thumb is to keep the input and output capacitors close to the IC, use a solid ground plane, and keep the switching node (SW pin) away from sensitive analog nodes. Additionally, use a Kelvin connection for the sense resistors and keep the layout symmetrical to minimize noise.
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The sense resistors (RSENSE) should be chosen based on the maximum current you expect in your application. A good starting point is to use the formula RSENSE = 0.1V / IMAX, where IMAX is the maximum expected current. You should also consider the power rating and tolerance of the resistors.
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The input capacitors should be rated for at least 1.5 times the maximum input voltage to ensure reliable operation. For example, if the maximum input voltage is 15V, the input capacitors should be rated for at least 22.5V.
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You can synchronize the switching frequency by connecting the SYNC pin of each device to a common clock signal. This ensures that all devices switch at the same frequency, reducing EMI and noise.
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The LTC1735IS-1 has a thermal pad on the bottom of the package, which should be connected to a solid ground plane or a thermal heatsink to dissipate heat. You should also ensure good airflow around the device and avoid blocking the airflow with components or PCB features.