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  • LTC3857IUH#TRPBF

LTC3857IUH#TRPBF

32 Terminals 4V~38V 32-Pin LTC3857 DC to DC converter ICDUAL SWITCHING CONTROLLER 2 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver


  • Manufacturer: Linear Technology/Analog Devices
  • Origchip NO: 471-LTC3857IUH#TRPBF
  • Package: 32-WFQFN Exposed Pad
  • Datasheet: PDF
  • Stock: 217
  • Description: 32 Terminals 4V~38V 32-Pin LTC3857 DC to DC converter ICDUAL SWITCHING CONTROLLER 2 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Max Frequency 850kHz
Duty Cycle (Max) 99.4%
Clock Sync No
Height Seated (Max) 0.8mm
Length 5mm
Width 5mm
RoHS Status ROHS3 Compliant
Factory Lead Time 26 Weeks
Lifecycle Status PRODUCTION (Last Updated: 3 months ago)
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Surface Mount YES
Number of Pins 32
Operating Temperature -40°C~125°C TJ
Packaging Tape & Reel (TR)
Published 2012
Series PolyPhase®
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 32
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Subcategory Switching Regulator or Controllers
Technology CMOS
Terminal Position QUAD
Peak Reflow Temperature (Cel) 260
Terminal Pitch 0.5mm
Base Part Number LTC3857
Function Step-Down
Number of Outputs 2
Output Voltage 24V
Output Type Transistor Driver
Input Voltage-Nom 12V
Number of Channels 1
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Output Configuration Positive
Voltage - Supply (Vcc/Vdd) 4V~38V
Control Features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
Input Voltage (Min) 4V
Topology Buck
Control Mode CURRENT-MODE
Frequency - Switching 105kHz~835kHz 350kHz~535kHz
Input Voltage (Max) 38V
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes
Switcher Configuration PHASE-SHIFT

LTC3857IUH#TRPBF Overview


It comes in the 32-WFQFN Exposed Pad package, which makes switching controller suitable for most applications. This dc motor controller can be used to generate outputs with 2 numbers. An enclosure of Tape & Reel (TR) is used to package the PMIC. Transistor Driver dc switching's outputs (s) can be handled by it. 4V~38V is the operating voltage and supply voltage of the dc control. Qualified to work in an dc switcher with -40°C~125°C TJ. With this switching controller, you can switch at 105kHz~835kHz 350kHz~535kHz. dc dc regulators can be carried out with Surface Mount. Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking provides dcdc regulator efficient switching control. An analog IC with the DUAL SWITCHING CONTROLLER signal is connected to the switch converters. A switching converters's terminal (s) sits at the QUAD position. A variety of terminations with 32 of dc switching. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. DC switcher's voltage input is 12V. You can find other relevant dc to dc converter ics by searching "LTC3857". There are a total of 32 pins on switching converter. In particular, switching converter is a type of Switching Regulator or Controllers. 4V should be the minimum input voltage for the dc dc voltage regulator. According to the test statistics, DC regulator outputs 24V voltage. It should be fully noted that the dc to dc regulator only accepts 38V input voltage at most. The max frequency of the pmic can reach 850kHz. A dc to dc voltage regulator in the PolyPhase? series, it belongs to this family. Channels are 1 for high-quality communication.

LTC3857IUH#TRPBF Features


Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION

LTC3857IUH#TRPBF Applications


There are a lot of Linear Technology/Analog Devices LTC3857IUH#TRPBF DC to DC converter applications.

  • Industrial controllers
  • Servo drive system
  • Digital precision reference circuits
  • Electrical distribution systems
  • Electrical power transmission
  • Nuclear power plants
  • Computed tomography (CT)
  • Textile machinery
  • Scientific research
  • Experimental setup