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Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA
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.
LTC3544EUD#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.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
51AK6889
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Newark | Dc/Dc Conv, 4 O/P, 85Deg C, Qfn-Ep-16, No. Of Outputs:4Outputs, Topology:Synchronous Buck (Step Do... more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 23 |
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$4.4300 / $9.7500 | Buy Now |
DISTI #
LTC3544EUD#PBF-ND
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DigiKey | IC REG BUCK ADJ QUAD 16QFN Min Qty: 1 Lead time: 20 Weeks Container: Tube |
121 In Stock |
|
$4.4250 / $9.7500 | Buy Now |
DISTI #
584-LTC3544EUD#PBF
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Mouser Electronics | Switching Voltage Regulators 4x Sync Buck Reg: 2.25MHz, 300mA, 200mA, RoHS: Compliant | 0 |
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$4.5900 / $8.1900 | Order Now |
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Analog Devices Inc | 4x Sync Buck Reg: 2.25MHz, 300 Package Multiple: 121 | 630 |
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$3.5400 / $9.7500 | Buy Now |
DISTI #
35216907
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Verical | Conv DC-DC 2.25V to 5.5V Synchronous Step Down Quad-Out 0.8V to 5.5V 0.3A/0.2A/0.1A 16-Pin QFN EP Tu... more RoHS: Compliant Min Qty: 121 Package Multiple: 121 | Americas - 605 |
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$4.4528 | Buy Now |
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Rochester Electronics | LTC3544 - Quad 2.25MHz Synchronous Step-Down DC/DC Converter in QFN RoHS: Compliant Status: Active Min Qty: 1 | 13 |
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$3.7200 / $4.6500 | Buy Now |
DISTI #
LTC3544EUDPBF
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TME | PMIC, DC/DC converter, Uin: 2.25÷5.5VDC, Uout: 0.8÷5.5VDC, 0.6A Min Qty: 1 | 0 |
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$4.9700 / $6.5700 | RFQ |
DISTI #
LTC3544EUD#PBF
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Richardson RFPD | DC TO DC CONVERTER RoHS: Compliant Min Qty: 121 | 0 |
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$4.5700 / $5.0200 | Buy Now |
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LTC3544EUD#PBF
Analog Devices Inc
Buy Now
Datasheet
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Compare Parts:
LTC3544EUD#PBF
Analog Devices Inc
Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA
Select a part to compare: |
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, MO220WEED-2, QFN-16 | |
Pin Count | 16 | |
Manufacturer Package Code | 05-08-1691 | |
Reach Compliance Code | compliant | |
Samacsys Manufacturer | Analog Devices | |
Analog IC - Other Type | SWITCHING REGULATOR | |
Control Mode | CURRENT-MODE | |
Control Technique | FREQUENCY MODULATION | |
Input Voltage-Max | 5.5 V | |
Input Voltage-Min | 2.25 V | |
Input Voltage-Nom | 3.6 V | |
JESD-30 Code | S-PQCC-N16 | |
JESD-609 Code | e3 | |
Length | 3 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 | 0.8 A | |
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 | |
Qualification Status | Not Qualified | |
Seated Height-Max | 0.8 mm | |
Surface Mount | YES | |
Switcher Configuration | BUCK | |
Switching Frequency-Max | 2700 kHz | |
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 |
This table gives cross-reference parts and alternative options found for LTC3544EUD#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 LTC3544EUD#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 |
---|---|---|---|---|
LTC3544EUD#PBF | Linear Technology | Check for Price | LTC3544 - Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA; Package: QFN; Pins: 16; Temperature Range: -40°C to 85°C | LTC3544EUD#PBF vs LTC3544EUD#PBF |
LTC3544EUD | Analog Devices Inc | Check for Price | Switching Regulator, Current-mode, 0.8A, 2700kHz Switching Freq-Max, PQCC16 | LTC3544EUD#PBF vs LTC3544EUD |
A good PCB layout for the LTC3544EUD involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To optimize the inductor selection, consider the inductor's saturation current, DC resistance, and core material. Choose an inductor with a saturation current rating above the peak current of the converter, and a DC resistance that minimizes losses. Ferrite or iron powder cores are suitable for the LTC3544EUD.
The maximum ambient temperature for the LTC3544EUD is 85°C. However, the junction temperature (TJ) should not exceed 125°C. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
Yes, the LTC3544EUD can be used in a synchronous buck configuration. This can improve efficiency by reducing the power losses in the external Schottky diode. However, ensure that the external FET is properly selected and driven to avoid shoot-through currents.
To troubleshoot the LTC3544EUD, start by verifying the input voltage, output voltage, and feedback voltage. Check for proper component selection, PCB layout, and soldering. Use an oscilloscope to inspect the waveforms and identify any anomalies. Consult the datasheet and application notes for guidance.