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  • LTC3891IFE#PBF

LTC3891IFE#PBF

20 Terminals 4V~60V 20-Pin LTC3891 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 105kHz~835kHz 350kHz~535kHz Transistor Driver


  • Manufacturer: Linear Technology/Analog Devices
  • Origchip NO: 471-LTC3891IFE#PBF
  • Package: 20-TSSOP (0.173, 4.40mm Width) Exposed Pad
  • Datasheet: PDF
  • Stock: 469
  • Description: 20 Terminals 4V~60V 20-Pin LTC3891 DC to DC converter ICSWITCHING CONTROLLER 1 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: 1 week ago)
Mounting Type Surface Mount
Package / Case 20-TSSOP (0.173, 4.40mm Width) Exposed Pad
Surface Mount YES
Number of Pins 20
Operating Temperature -40°C~125°C TJ
Packaging Tube
Published 2011
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 20
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Additional Feature ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V
Subcategory Switching Regulator or Controllers
Technology CMOS
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 225
Terminal Pitch 0.65mm
Base Part Number LTC3891
Function Step-Down
Number of Outputs 1
Output Voltage 24V
Output Type Transistor Driver
Input Voltage-Nom 12V
Analog IC - Other Type SWITCHING CONTROLLER
Output Configuration Positive
Output Current 5A
Voltage - Supply (Vcc/Vdd) 4V~60V
Control Features Current Limit, 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) 60V
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes
Switcher Configuration PUSH-PULL
Max Frequency 835kHz
Duty Cycle (Max) 99%
Clock Sync No
Length 6.5mm
Width 4.5mm
RoHS Status ROHS3 Compliant

LTC3891IFE#PBF Overview


The switching controller fits in the 20-TSSOP (0.173, 4.40mm Width) Exposed Pad package and is ideal for most applications. This dc motor controller can be used to generate outputs with 1 numbers. The pmic is packaged in Tube solid enclosure. It is capable of dealing with Transistor Driver dc switching's output (s). dc switching'sdc control's supply and operating voltages are 4V~60V. Workable in an dc switcher where -40°C~125°C TJ is the -40°C~125°C TJrm. A switching controller such as this can switch at a value of 105kHz~835kHz 350kHz~535kHz . dc dc regulator can be generalized using Surface Mount. For efficient switching control, the dcdc regulator features Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking. Thare switch converters are connected to an analog integrated circuit (IC) of type SWITCHING CONTROLLER. There are a DUAL terminal on the switching converters. Various 20 terminations. Some of the control techniques adapted by these dc dc converter ics include PULSE WIDTH MODULATION. DC switcher's input voltageis set to 12V. A search for "LTC3891" will reveal other relevant dc to dc converter ics. Pins number 20 of switching converter in total. Specially, switching converter corresponds to type Switching Regulator or Controllers. An input voltage of 4V is the minimum required for the dc dc voltage regulator. A 24V voltage of DC regulator was detected in the test statistics. A maximum voltage of 60V is accepted by the dc to dc regulator as an input voltage. If you are starting a new project, you should note the dc dc regulator's typical output current is 5A. This dc regulatorhas a max frequency of 835kHz. The value of DC to DC voltage regulator is set to ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V in order to better satisfy the requirement.

LTC3891IFE#PBF Features


Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V

LTC3891IFE#PBF Applications


There are a lot of Linear Technology/Analog Devices LTC3891IFE#PBF DC to DC converter applications.

  • Lathes
  • Constant current circuits
  • Low output voltage switching power supply circuits
  • Various CNC machine tools
  • USB circuits
  • Milling machines
  • Production lines
  • Access control systems
  • Household control circuits
  • Radio equipment