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LTC3855EFE#PBF

38 Terminals 4.5V~38V 38-Pin LTC3855 DC to DC converter ICDUAL SWITCHING CONTROLLER 2 Outputs 250kHz~770kHz Transistor Driver


  • Manufacturer: Linear Technology/Analog Devices
  • Origchip NO: 471-LTC3855EFE#PBF
  • Package: 38-TFSOP (0.173, 4.40mm Width) Exposed Pad
  • Datasheet: PDF
  • Stock: 627
  • Description: 38 Terminals 4.5V~38V 38-Pin LTC3855 DC to DC converter ICDUAL SWITCHING CONTROLLER 2 Outputs 250kHz~770kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Factory Lead Time 8 Weeks
Lifecycle Status PRODUCTION (Last Updated: 3 weeks ago)
Mounting Type Surface Mount
Package / Case 38-TFSOP (0.173, 4.40mm Width) Exposed Pad
Surface Mount YES
Number of Pins 38
Operating Temperature -40°C~85°C TA
Packaging Tube
Published 2009
Series PolyPhase®
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 38
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Subcategory Switching Regulator or Controllers
Technology CMOS
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Terminal Pitch 0.5mm
Time@Peak Reflow Temperature-Max (s) 30
Base Part Number LTC3855
Function Step-Down
Number of Outputs 2
Output Voltage 12.5V
Output Type Transistor Driver
Input Voltage-Nom 15V
Number of Channels 1
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Output Configuration Positive
Voltage - Supply (Vcc/Vdd) 4.5V~38V
Control Features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
Input Voltage (Min) 4.5V
Topology Buck
Control Mode CURRENT-MODE
Frequency - Switching 250kHz~770kHz
Control Technique PHASE-SHIFT CONTROL
Synchronous Rectifier Yes
Switcher Configuration PHASE-SHIFT
Max Frequency 850kHz
Duty Cycle (Max) 95%
Clock Sync No
Length 9.7mm
Width 4.4mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant

LTC3855EFE#PBF Overview


As a result of 38-TFSOP (0.173, 4.40mm Width) Exposed Pad compact design, the switching controller is compatible with most applications. It is sufficient to generate 2 outputs with this dc motor controller. An enclosure of Tube is used to package the PMIC. The system can process Transistor Driver dc switching's outputs (s). dc control's supply and operating voltages are 4.5V~38V. Workable in an dc switcher where -40°C~85°C TA is the -40°C~85°C TArm. A switching controller such as this can switch at a value of 250kHz~770kHz . dc dc regulator can be generalized using Surface Mount. DCDC regulator is controlled efficiently by Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking. Thare switch converters are connected to an analog integrated circuit (IC) of type DUAL SWITCHING CONTROLLER. There are a DUAL terminal on the switching converters. A variety of terminations with 38 of dc switching. The control methods that these dc dc converter ics use include PHASE-SHIFT CONTROL. DC switcher's input voltageis set to 15V. Other relevant dc to dc converter ics will be returned if you search "LTC3855". The switching converter has a total of 38 pins. Particularly, switching converter is a type of Switching Regulator or Controllers. dc dc voltage regulators should have a minimum input voltage of 4.5V. Based on the test statistics, DC regulator outputs voltage 12.5V. DC regulator850kHz has the maximum frequency. Thare are switch converters of the PolyPhase? series. A high-quality communication requires 1 channels.

LTC3855EFE#PBF Features


Transistor Driver Outputs
Switching Frequency: 250kHz~770kHz
Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
PHASE-SHIFT CONTROL

LTC3855EFE#PBF Applications


There are a lot of Linear Technology/Analog Devices LTC3855EFE#PBF DC to DC converter applications.

  • Textile machinery
  • Cutting machine tools
  • Series voltage regulation circuits
  • Printing equipment
  • Game consoles
  • Combined machine tools
  • Constant current circuits
  • Smoke prevention equipment
  • Geothermal power
  • Machining centers