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  • LTC3857IGN-1#PBF

LTC3857IGN-1#PBF

28 Terminals 4V~38V 28-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-LTC3857IGN-1#PBF
  • Package: 28-SSOP (0.154, 3.90mm Width)
  • Datasheet: PDF
  • Stock: 961
  • Description: 28 Terminals 4V~38V 28-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
Factory Lead Time 8 Weeks
Lifecycle Status PRODUCTION (Last Updated: 3 months ago)
Mounting Type Surface Mount
Package / Case 28-SSOP (0.154, 3.90mm Width)
Surface Mount YES
Number of Pins 28
Operating Temperature -40°C~125°C TJ
Packaging Tube
Published 2012
Series PolyPhase®
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 28
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 0.635mm
Time@Peak Reflow Temperature-Max (s) 30
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 Enable, Frequency 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
Max Frequency 850kHz
Duty Cycle (Max) 99.4%
Clock Sync No
Length 9.9mm
Width 3.9mm
RoHS Status ROHS3 Compliant
Lead Free Lead Free

LTC3857IGN-1#PBF Overview


Capsuled in the 28-SSOP (0.154, 3.90mm Width) package, the switching controller suits most application needs. This dc motor controller can be used to generate outputs with 2 numbers. Packaging for the pmic consists of Tube solid enclosures. With Transistor Driver dc switching's output (s), it is able to handle it. 4V~38V is the operating voltage and supply voltage of the dc control. Qualified to work in a -40°C~125°C TJ dc switcher. Using this switching controller, it is possible to switch at 105kHz~835kHz 350kHz~535kHz. A generalization of dc dc regulator can be made using Surface Mount. Switching control is made easier with the dcdc regulator's Enable, Frequency Control, Power Good, Soft Start, Tracking. Thare switch converters are connected to an analog integrated circuit (IC) of type DUAL SWITCHING CONTROLLER. DUAL are the position of the terminal of the switching converters. There are many different types of terminations for 28. A few of the control techniques these dc dc converter ics adapt include PULSE WIDTH MODULATION. DC switcher's voltage input is 12V. A search for "LTC3857" will reveal other relevant dc to dc converter ics. Switching converter has a total of 28 pins. Particularly, switching converter is a type of Switching Regulator or Controllers. The minimum input voltage of the dc dc voltage regulator should be 4V. DC regulator outputs 24V voltage based on test statistics. It should be noted that the dc to dc regulator only accepts 38V voltage as input voltage. DC regulator has a maximum frequency of 850kHz. The dc to dc voltage regulator is from the PolyPhase? series. There are 1 channels for high-quality communication.

LTC3857IGN-1#PBF Features


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

LTC3857IGN-1#PBF Applications


There are a lot of Linear Technology/Analog Devices LTC3857IGN-1#PBF DC to DC converter applications.

  • Pipe bending machines
  • Printing equipment
  • Cutting machine tools
  • Medical equipment
  • Scientific research
  • Game consoles
  • Medical monitoring systems
  • Flexible manufacturing cells
  • Servo drive system
  • Hydrogen power