Part Details for LTC1148CS#PBF by Linear Technology
Results Overview of LTC1148CS#PBF by Linear Technology
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (1 replacement)
- 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
Industrial Automation
Energy and Power Systems
Renewable Energy
LTC1148CS#PBF Information
LTC1148CS#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.
Price & Stock for LTC1148CS#PBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 110 |
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RFQ | ||
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Quest Components | 88 |
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$11.6760 / $15.0120 | Buy Now |
Part Details for LTC1148CS#PBF
LTC1148CS#PBF CAD Models
LTC1148CS#PBF Part Data Attributes
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LTC1148CS#PBF
Linear Technology
Buy Now
Datasheet
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LTC1148CS#PBF
Linear Technology
LTC1148 - High Efficiency Synchronous Step-Down Switching Regulators; Package: SO; Pins: 14; 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, PLASTIC, SO-14 | |
| Pin Count | 14 | |
| Manufacturer Package Code | S | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Control Mode | CURRENT-MODE | |
| Control Technique | CONSTANT OFF TIME | |
| Input Voltage-Max | 18 V | |
| Input Voltage-Min | 4 V | |
| Input Voltage-Nom | 10 V | |
| JESD-30 Code | R-PDSO-G14 | |
| JESD-609 Code | e3 | |
| Length | 8.65 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 14 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Current-Max | 0.05 A | |
| Output Voltage-Nom | 1.25 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP14,.25 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 mm | |
| Supply Current-Max (Isup) | 2.1 mA | |
| Surface Mount | YES | |
| Switcher Configuration | PUSH-PULL | |
| Switching Frequency-Max | 250 kHz | |
| Technology | CMOS | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3.9 mm |
Alternate Parts for LTC1148CS#PBF
This table gives cross-reference parts and alternative options found for LTC1148CS#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 LTC1148CS#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 |
|---|---|---|---|---|
| LTC1148CS#TRPBF | Analog Devices Inc | Check for Price | High Efficiency Synchronous Step-Down Switching Regulators | LTC1148CS#PBF vs LTC1148CS#TRPBF |
LTC1148CS#PBF 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 traces short and away from each other, use a solid ground plane, and place the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
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To ensure stability, make sure to follow the datasheet's recommended compensation network values and placement. Additionally, use a low-ESR output capacitor, and ensure the output voltage is within the recommended range. It's also important to minimize the loop area and keep the feedback traces short and away from noise sources.
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The datasheet specifies a maximum input voltage of 15V, but it's recommended to derate this value by 10-20% to ensure reliable operation. Additionally, it's important to consider the maximum voltage rating of the input capacitors and ensure they can handle the maximum input voltage.
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The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where Iout is the output current, ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency. The datasheet provides some guidance on how to estimate these values.
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The thermal derating of the LTC1148CS#PBF is typically around 1.5°C/W. This means that for every 1°C increase in junction temperature, the maximum output current must be derated by 1.5%. The datasheet provides a thermal derating curve that can be used to estimate the maximum output current at a given temperature.