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Part Details for LTC2945IUD-1#PBF by Analog Devices Inc
Results Overview of LTC2945IUD-1#PBF by Analog Devices Inc
- Distributor Offerings: (6 listings)
- Number of FFF Equivalents: (1 replacement)
- CAD Models: (Available)
- 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.
LTC2945IUD-1#PBF Information
LTC2945IUD-1#PBF by Analog Devices Inc is a Power Management Circuit.
Power Management Circuits 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 LTC2945IUD-1#PBF
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
02AM2263
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Newark | Supervisor, 80V, Qfn-Ep-12 Rohs Compliant: Yes |Analog Devices LTC2945IUD-1#PBF RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 0 |
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$6.1400 / $12.4400 | Buy Now |
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DISTI #
LTC2945IUD-1#PBF-ND
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DigiKey | IC POWER MONITOR I2C 12-QFN Min Qty: 1 Lead time: 10 Weeks Container: Tube |
171 In Stock |
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$6.1375 / $12.4400 | Buy Now |
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DISTI #
584-LTC2945IUD-1#PBF
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Mouser Electronics | Current & Power Monitors & Regulators Wide Rng I2C Pwr Mon RoHS: Compliant | 768 |
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$6.1300 / $11.6600 | Buy Now |
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Analog Devices Inc | Wide Rng I2C Pwr Mon Package Multiple: 121 | 2213 |
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$4.9100 / $12.4400 | Buy Now |
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DISTI #
35215785
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Verical | Monitor 4V to 80V 12-Pin QFN EP Tube RoHS: Compliant Min Qty: 121 Package Multiple: 121 | Americas - 2178 |
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$6.0730 | Buy Now |
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DISTI #
LTC2945IUD-1PBF
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Richardson RFPD | POWER MANAGEMENT IC RoHS: Compliant Min Qty: 121 | 0 |
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$6.3400 / $6.9600 | Buy Now |
Part Details for LTC2945IUD-1#PBF
LTC2945IUD-1#PBF CAD Models
LTC2945IUD-1#PBF Part Data Attributes
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LTC2945IUD-1#PBF
Analog Devices Inc
Buy Now
Datasheet
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Compare Parts:
LTC2945IUD-1#PBF
Analog Devices Inc
Wide Range I<sup>2</sup>C Power Monitor
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| Pbfree Code | No | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | ANALOG DEVICES INC | |
| Package Description | 3 X 3 MM, LEAD FREE, PLASTIC, MO-220WEED-1, QFN-12 | |
| Pin Count | 12 | |
| Manufacturer Package Code | 05-08-1855 | |
| Reach Compliance Code | compliant | |
| Samacsys Manufacturer | Analog Devices | |
| Adjustable Threshold | YES | |
| Analog IC - Other Type | POWER SUPPLY SUPPORT CIRCUIT | |
| JESD-30 Code | S-PQCC-N12 | |
| JESD-609 Code | e3 | |
| Length | 3 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Channels | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 12 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | HVQCCN | |
| Package Shape | SQUARE | |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Seated Height-Max | 0.8 mm | |
| Supply Voltage-Max (Vsup) | 80 V | |
| Supply Voltage-Min (Vsup) | 2.7 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | INDUSTRIAL | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | NO LEAD | |
| Terminal Pitch | 0.5 mm | |
| Terminal Position | QUAD | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3 mm |
Alternate Parts for LTC2945IUD-1#PBF
This table gives cross-reference parts and alternative options found for LTC2945IUD-1#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 LTC2945IUD-1#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 |
|---|---|---|---|---|
| LTC2945CUD-1#TRPBF | Linear Technology | Check for Price | LTC2945 - Wide Range I2C Power Monitor; Package: QFN; Pins: 12; Temperature Range: 0°C to 70°C | LTC2945IUD-1#PBF vs LTC2945CUD-1#TRPBF |
LTC2945IUD-1#PBF Frequently Asked Questions (FAQ)
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A good PCB layout for the LTC2945 involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes (e.g., VOUT and ISENSE). Use a solid ground plane, and keep the input and output capacitors close to the IC. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
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Choose an inductor with a high saturation current rating, low DC resistance, and a high self-resonant frequency. The inductor value should be between 1.5μH and 3.3μH. A shielded inductor is recommended to reduce EMI. Consult the datasheet for specific inductor recommendations.
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The LTC2945 is rated for operation from -40°C to 125°C. However, the maximum ambient temperature range depends on the specific application and the thermal design of the system. Consult the datasheet for thermal design considerations.
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The LTC2945 has a built-in overcurrent protection feature. Connect a sense resistor (RSENSE) between the ISENSE pin and ground. The IC will limit the output current to a maximum of 1.5A (typical) when the voltage across RSENSE exceeds 50mV. Adjust RSENSE to set the desired overcurrent threshold.
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Yes, the LTC2945 can be used in a synchronous buck configuration. Connect the SYNC pin to the drain of an external N-channel MOSFET. This allows the IC to control the external MOSFET as a synchronous rectifier, improving efficiency at light loads.