Datasheets
LTC3891IFE#TRPBF by:
Analog Devices Inc

Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20

Part Details for LTC3891IFE#TRPBF by Analog Devices Inc

Results Overview of LTC3891IFE#TRPBF by Analog Devices Inc

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LTC3891IFE#TRPBF Information

LTC3891IFE#TRPBF 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 LTC3891IFE#TRPBF

Part # Distributor Description Stock Price Buy
DISTI # 505-LTC3891IFE#TRPBFCT-ND
DigiKey IC REG CTRLR BUCK 20TSSOP Min Qty: 1 Lead time: 10 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 1573
In Stock
  • 1 $11.1900
  • 10 $8.7600
  • 25 $8.1532
  • 100 $7.6347
  • 2,500 $6.6537
$6.6537 / $11.1900 Buy Now
DISTI # 584-LTC3891IFE#TRPBF
Mouser Electronics Switching Voltage Regulators L IQ, 60V Sync Buck Cntr RoHS: Compliant 0
  • 2,500 $6.2300
$6.2300 Order Now
Analog Devices Inc L IQ, 60V Sync Buck Cntr Min Qty: 1 Package Multiple: 2500 2815
  • 1 $12.6000
  • 10 $8.6780
  • 25 $7.6568
  • 100 $6.5024
  • 250 $6.2375
  • 1,000 $4.9900
  • 2,500 $6.2375
$4.9900 / $12.6000 Buy Now
DISTI # LTC3891IFETRPBF
TME PMIC, DC/DC converter, Uin: 4÷60VDC, Uout: 0.8÷24VDC, 10A, TSSOP20 Min Qty: 2500 0
  • 2,500 $5.5100
$5.5100 RFQ
DISTI # LTC3891IFETRPBF
Richardson RFPD POWER MANAGEMENT IC RoHS: Compliant Min Qty: 2500 0
  • 2,500 $6.7000
  • 5,000 $6.4500
$6.4500 / $6.7000 Buy Now
Win Source Electronics IC REG CTRLR BUCK 20TSSOP 2320
  • 4 $13.5417
  • 10 $11.1111
  • 14 $10.7639
  • 20 $10.4167
  • 25 $10.0695
  • 34 $9.0278
$9.0278 / $13.5417 Buy Now

US Tariff Estimator: LTC3891IFE#TRPBF by Analog Devices Inc

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LTC3891IFE#TRPBF
Analog Devices Inc
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Part Details for LTC3891IFE#TRPBF

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LTC3891IFE#TRPBF Part Data Attributes

LTC3891IFE#TRPBF Analog Devices Inc
Buy Now Datasheet
Compare Parts:
LTC3891IFE#TRPBF Analog Devices Inc Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20
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 0.80v To 24v
Analog IC - Other Type Switching Controller
Control Mode Current-Mode
Control Technique Pulse Width Modulation
Input Voltage-Max 60 V
Input Voltage-Min 4 V
Input Voltage-Nom 12 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 125 °C
Operating Temperature-Min -40 °C
Output Voltage-Max 24 V
Output Voltage-Min 0.8 V
Output Voltage-Nom 5.1 V
Package Body Material Plastic/Epoxy
Package Code HTSSOP
Package Equivalence Code TSSOP20,.25
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 Push-Pull
Switching Frequency-Max 900 Khz
Technology Cmos
Temperature Grade Automotive
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 4.5 Mm

Alternate Parts for LTC3891IFE#TRPBF

This table gives cross-reference parts and alternative options found for LTC3891IFE#TRPBF. 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 LTC3891IFE#TRPBF, 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
LTC3891EFE#TRPBF Analog Devices Inc $4.6901 Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20 LTC3891IFE#TRPBF vs LTC3891EFE#TRPBF
LTC3891HFE#PBF Analog Devices Inc $6.0297 Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20 LTC3891IFE#TRPBF vs LTC3891HFE#PBF
LTC3891IFE#PBF Analog Devices Inc $6.0395 Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20 LTC3891IFE#TRPBF vs LTC3891IFE#PBF
LTC3891EFE#PBF Analog Devices Inc $6.2557 Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20 LTC3891IFE#TRPBF vs LTC3891EFE#PBF
LTC3891HFE#TRPBF Analog Devices Inc Check for Price Switching Controller, Current-mode, 900kHz Switching Freq-Max, CMOS, PDSO20 LTC3891IFE#TRPBF vs LTC3891HFE#TRPBF
equivalents icon

LTC3891IFE#TRPBF Related Parts

LTC3891IFE#TRPBF Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the VIN pin is 60V, but it's recommended to keep it below 50V for reliable operation.

  • To ensure stability, make sure to follow the recommended layout and component selection guidelines, including the use of a suitable output capacitor and a low-ESR input capacitor. Additionally, ensure that the feedback network is properly compensated.

  • Yes, the LTC3891 can be used as a synchronous buck converter by connecting the SYNC pin to the clock signal and using the internal FET drivers to control the high-side and low-side FETs.

  • The maximum switching frequency of the LTC3891 is 2.25MHz, but it's recommended to operate at a frequency below 1.5MHz for optimal performance and efficiency.

  • The output voltage of the LTC3891 can be programmed using an external resistor divider network connected to the VFB pin. The output voltage is determined by the ratio of the resistors and the internal reference voltage.

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