Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 1 month 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 |
Tube |
Published |
2012 |
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 |
Terminal Pitch |
0.5mm |
Base Part Number |
LTC3890 |
Function |
Step-Down, Step-Up/Step-Down |
Number of Outputs |
2 |
Output Type |
Transistor Driver |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
DUAL SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4V~60V |
Control Features |
Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking |
Input Voltage (Min) |
4V |
Topology |
Buck, SEPIC |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
105kHz~835kHz 350kHz~535kHz |
Input Voltage (Max) |
60V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Max Duty Cycle |
99 % |
Clock Sync |
No |
Height Seated (Max) |
0.8mm |
Length |
5mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
LTC3890EUH-2#PBF Overview
In the 32-WFQFN Exposed Pad package, the switching controller meets most application requirements. For 2 outputs, the dc motor controller is appropriate. Tube solid enclosure protects the pmic. It is capable of dealing with Transistor Driver dc switching's output (s). dc switching'sdc controls with 4V~60V voltage are supplied and operated. Worked in an dc switcher with a -40°C~125°C TJ rating. In this switching controller, the switch can be set to 105kHz~835kHz 350kHz~535kHz. Surface Mount makes it suitable for general dc dc regulator. Switching control is made easier with the dcdc regulator's Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking. An analog IC DUAL SWITCHING CONTROLLER is connected to the switch converters. The switching converters's terminal (s) are designed at QUAD . 32 terminations with a variety of function. To name a few of the control techniques these dc dc converter ics adapt, it includes PULSE WIDTH MODULATION. DC switcher's voltage input is 12V. Search for "LTC3890" to find other relevant dc to dc converter ics. Switching converter has a total of 32 pins. Particularly, switching converter is a type of Switching Regulator or Controllers. It is recommended that the dc dc voltage regulator's minimum input voltage be 4V. It should be noted that the dc to dc regulator only accepts 60V voltage as input voltage. The maximum duty cycle of this voltage regulator dc to dc is set to 99 % to ensure reliability during power-up and power-down.
LTC3890EUH-2#PBF Features
Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
Max Duty Cycle: 99 %
LTC3890EUH-2#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC3890EUH-2#PBF DC to DC converter applications.
- Milling machines
- Surface processing equipment
- Balance equipment
- Motor controller circuits
- Thermal power
- Computed tomography (CT)
- Remotely powered electric motors
- Various CNC machine tools
- Constant current circuits
- Refrigerators of central air conditioners