Part Details for LTC3521EFE#PBF by Analog Devices Inc
Results Overview of LTC3521EFE#PBF by Analog Devices Inc
- Distributor Offerings: (11 listings)
- Number of FFF Equivalents: (1 replacement)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (1 option)
- CAD Models: (Request Part)
- 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
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Renewable Energy
Automotive
LTC3521EFE#PBF Information
LTC3521EFE#PBF 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.
Price & Stock for LTC3521EFE#PBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
505-LTC3521EFE#PBF-ND
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DigiKey | IC REG BUCK BST ADJ TRPL 20TSSOP Min Qty: 1 Lead time: 10 Weeks Container: Tube |
362 In Stock |
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$5.6620 / $9.4200 | Buy Now |
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DISTI #
584-LTC3521EFE#PBF
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Mouser Electronics | Switching Voltage Regulators 1A Buck-Boost DC/DC & 2x 600mA Buck DC/D RoHS: Compliant | 74 |
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$5.1600 / $10.9300 | Buy Now |
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DISTI #
V36:1790_06469498
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Arrow Electronics | Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Triple-Out 1.8V to 5.25V/0.6V to 5.5V 0.6A/1A 20-Pin TSSOP EP Tube COO: Thailand RoHS: Compliant Min Qty: 74 Package Multiple: 74 Lead time: 10 Weeks Date Code: 1112 | Americas - 1 |
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$4.8220 | Buy Now |
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Analog Devices Inc | 1A Buck-Boost DC/DC & 2x 600mA Package Multiple: 74 | 1553 |
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$4.1300 / $10.9300 | Buy Now |
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DISTI #
35216197
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Verical | Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Triple-Out 1.8V to 5.25V/0.6V to 5.5V 0.6A/1A 20-Pin TSSOP EP Tube RoHS: Compliant Min Qty: 74 Package Multiple: 74 | Americas - 1480 |
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$5.1082 | Buy Now |
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DISTI #
V36:1790_06469498
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Arrow Electronics | Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Triple-Out 1.8V to 5.25V/0.6V to 5.5V 0.6A/1A 20-Pin TSSOP EP Tube COO: Thailand RoHS: Compliant Min Qty: 74 Package Multiple: 74 Lead time: 10 Weeks Date Code: 1112 | Americas - 1 |
|
$4.8220 | Buy Now |
|
DISTI #
35216197
|
Verical | Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Triple-Out 1.8V to 5.25V/0.6V to 5.5V 0.6A/1A 20-Pin TSSOP EP Tube RoHS: Compliant Min Qty: 74 Package Multiple: 74 | Americas - 1480 |
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$5.1082 | Buy Now |
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DISTI #
LTC3521EFEPBF
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TME | PMIC, DC/DC converter, Uin: 1.8÷5.5VDC, Uout: 1.8÷5.25VDC, TSSOP20 Min Qty: 1 | 0 |
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$6.8500 / $7.9200 | RFQ |
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DISTI #
V36:1790_06469498
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Arrow Electronics | Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Triple-Out 1.8V to 5.25V/0.6V to 5.5V 0.6A/1A 20-Pin TSSOP EP Tube COO: Thailand RoHS: Compliant Min Qty: 74 Package Multiple: 74 Lead time: 10 Weeks Date Code: 1112 | Americas - 1 |
|
$4.8220 | Buy Now |
|
DISTI #
LTC3521EFE#PBF
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Richardson RFPD | POWER MANAGEMENT IC RoHS: Compliant Min Qty: 74 | 0 |
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$5.3300 / $6.1900 | Buy Now |
US Tariff Estimator: LTC3521EFE#PBF by Analog Devices Inc
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
Part Details for LTC3521EFE#PBF
LTC3521EFE#PBF Part Data Attributes
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LTC3521EFE#PBF
Analog Devices Inc
Buy Now
Datasheet
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Compare Parts:
LTC3521EFE#PBF
Analog Devices Inc
Switching Regulator, Voltage-mode, 1A, 1350kHz Switching Freq-Max, CMOS, PDSO20
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| Pbfree Code | No | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Package Description | 4.40 Mm, Lead Free, Plastic, Tssop-20 | |
| Pin Count | 20 | |
| Manufacturer Package Code | 05-08-1663 (CB) | |
| Reach Compliance Code | Compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Additional Feature | Also Operates In Adjustable Mode From 1.8 To 5.25 V; Also Operates In Current Mode | |
| Analog IC - Other Type | Switching Regulator | |
| Control Mode | Voltage-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 5.5 V | |
| Input Voltage-Min | 1.8 V | |
| Input Voltage-Nom | 3.6 V | |
| JESD-30 Code | R-PDSO-G20 | |
| JESD-609 Code | e3 | |
| Length | 6.5 Mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 20 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | ||
| Output Current-Max | 1 A | |
| Output Voltage-Max | 5.25 V | |
| Output Voltage-Min | 1.8 V | |
| Output Voltage-Nom | 3.3 V | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | HTSSOP | |
| Package Shape | Rectangular | |
| Package Style | Small Outline, Heat Sink/Slug, Thin Profile, Shrink Pitch | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.2 Mm | |
| Surface Mount | Yes | |
| Switcher Configuration | Buck-Boost | |
| Switching Frequency-Max | 1350 Khz | |
| Technology | Cmos | |
| Temperature Grade | Other | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 0.65 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 4.4 Mm |
Alternate Parts for LTC3521EFE#PBF
This table gives cross-reference parts and alternative options found for LTC3521EFE#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 LTC3521EFE#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 |
|---|---|---|---|---|
| LTC3521IFE#PBF | Analog Devices Inc | $7.0703 | Switching Regulator, Voltage-mode, 1A, 1350kHz Switching Freq-Max, CMOS, PDSO20 | LTC3521EFE#PBF vs LTC3521IFE#PBF |
LTC3521EFE#PBF Frequently Asked Questions (FAQ)
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The maximum input voltage that can be applied to the LTC3521EFE is 18V, but it's recommended to keep it below 15V for optimal performance and reliability.
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To optimize inductor selection, consider the inductor's saturation current, DC resistance, and core loss. A good starting point is to choose an inductor with a saturation current at least 1.5 times the peak current, and a DC resistance less than 100mΩ. Also, consider using a shielded inductor to reduce EMI.
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For optimal performance, keep the input and output capacitors close to the IC, and use a solid ground plane to reduce noise and EMI. Also, keep the high-frequency switching nodes (e.g., LX and SW) away from sensitive analog nodes, and use a Kelvin connection for the output voltage sense lines.
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The output voltage of the LTC3521EFE can be adjusted by changing the resistive divider ratio of the feedback network (R1 and R2). Use the formula VOUT = 0.8V x (1 + R2/R1) to calculate the desired resistor values.
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The LTC3521EFE has a thermal derating of 30°C/W, which means that for every 1W of power dissipation, the junction temperature will increase by 30°C. Make sure to provide adequate heat sinking and thermal management to keep the junction temperature below 125°C.