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60V, 4A Synchronous Step-Down Regulator with Rail-to-Rail Programmable Output
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.
LTC3649IUFD#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 #
50AK3190
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Newark | Dc/Dc Conv, Sync Buck, 3Mhz, 125Deg C, No. Of Outputs:1Outputs, Topology:Synchronous Buck (Step Do... more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 63 |
|
$9.8000 / $17.5500 | Buy Now |
DISTI #
505-LTC3649IUFD#PBF-ND
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DigiKey | IC REG BUCK ADJ 4A 28QFN Min Qty: 1 Lead time: 10 Weeks Container: Tube |
512 In Stock |
|
$9.6625 / $17.5500 | Buy Now |
DISTI #
584-LTC3649IUFD#PBF
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Mouser Electronics | Switching Voltage Regulators 60V, 4A Sync Buck Reg w/ R2R Progmable O RoHS: Compliant | 0 |
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$10.1100 / $16.6600 | Order Now |
DISTI #
V36:1790_14076153
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Arrow Electronics | Conv DC-DC 3.1V to 60V Synchronous Step Down Single-Out 0V to 59.5V 4A 28-Pin QFN EP Tube RoHS: Compliant Min Qty: 73 Package Multiple: 73 Lead time: 20 Weeks Date Code: 2308 | Americas - 15 |
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$9.6400 / $9.7450 | Buy Now |
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Analog Devices Inc | 60V, 4A Sync Buck Reg w/ R2R P Package Multiple: 73 | 103 |
|
$7.7300 / $17.5500 | Buy Now |
DISTI #
67580780
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Verical | Conv DC-DC 3.1V to 60V Synchronous Step Down Single-Out 0V to 59.5V 4A 28-Pin QFN EP Tube RoHS: Compliant Min Qty: 15 Package Multiple: 15 Date Code: 2308 | Americas - 15 |
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$9.6400 / $9.7450 | Buy Now |
DISTI #
30741818
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Verical | Conv DC-DC 3.1V to 60V Synchronous Step Down Single-Out 0V to 59.5V 4A 28-Pin QFN EP Tube RoHS: Compliant Min Qty: 6 Package Multiple: 6 | Americas - 6 |
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$9.2900 | Buy Now |
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NexGen Digital | 100 |
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RFQ | ||
DISTI #
LTC3649IUFD#PBF
|
Richardson RFPD | DC TO DC CONVERTER RoHS: Compliant Min Qty: 73 | 0 |
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$9.9800 / $11.6000 | Buy Now |
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LTC3649IUFD#PBF
Analog Devices Inc
Buy Now
Datasheet
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Compare Parts:
LTC3649IUFD#PBF
Analog Devices Inc
60V, 4A Synchronous Step-Down Regulator with Rail-to-Rail Programmable Output
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Pbfree Code | No | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | ANALOG DEVICES INC | |
Package Description | QFN-28 | |
Pin Count | 28 | |
Manufacturer Package Code | 05-08-1712 | |
Reach Compliance Code | compliant | |
Samacsys Manufacturer | Analog Devices | |
Analog IC - Other Type | SWITCHING REGULATOR | |
Control Mode | CURRENT-MODE | |
Input Voltage-Max | 60 V | |
Input Voltage-Min | 3.1 V | |
Input Voltage-Nom | 24 V | |
JESD-30 Code | R-PQCC-N28 | |
JESD-609 Code | e3 | |
Length | 5 mm | |
Number of Functions | 1 | |
Number of Terminals | 28 | |
Operating Temperature-Max | 125 °C | |
Operating Temperature-Min | -40 °C | |
Output Current-Max | 6.6 A | |
Output Voltage-Max | 60 V | |
Output Voltage-Min | 0.05 V | |
Package Body Material | PLASTIC/EPOXY | |
Package Code | HVQCCN | |
Package Equivalence Code | SOLCC28,.15,20 | |
Package Shape | RECTANGULAR | |
Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | |
Seated Height-Max | 0.8 mm | |
Surface Mount | YES | |
Switcher Configuration | BUCK | |
Switching Frequency-Max | 3000 kHz | |
Technology | CMOS | |
Temperature Grade | AUTOMOTIVE | |
Terminal Finish | Matte Tin (Sn) | |
Terminal Form | NO LEAD | |
Terminal Pitch | 0.5 mm | |
Terminal Position | QUAD | |
Width | 4 mm |
The maximum input voltage that can be applied to the VIN pin is 28V, but it's recommended to keep it below 24V for optimal performance and reliability.
To optimize the inductor selection, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current rating above the peak current of the converter, and a DC resistance that minimizes power loss.
The RUN pin is an active-high enable input that allows the user to turn the converter on and off. To use it, simply tie the RUN pin to VIN through a resistor (e.g., 10kΩ) to enable the converter, or tie it to GND to disable it.
The output voltage of the LTC3649 can be adjusted by changing the resistor divider network connected to the FB pin. Use the formula VOUT = 0.8V × (R1 + R2) / R2 to calculate the desired resistor values.
The maximum output current that the LTC3649 can deliver depends on the input voltage and the inductor selection. Typically, it can deliver up to 2A of output current, but this may vary depending on the specific application and design.