Parameters |
Factory Lead Time |
1 Week |
Mounting Type |
Surface Mount |
Package / Case |
20-WFQFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
Published |
2012 |
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 |
QUAD |
Peak Reflow Temperature (Cel) |
225 |
Terminal Pitch |
0.5mm |
Base Part Number |
LTC3891 |
JESD-30 Code |
S-PQCC-N20 |
Function |
Step-Down |
Number of Outputs |
1 |
Output Voltage |
5.1V |
Output Type |
Transistor Driver |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
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 |
Duty Cycle (Max) |
99% |
Clock Sync |
No |
Height Seated (Max) |
0.8mm |
Length |
4mm |
Width |
3mm |
RoHS Status |
ROHS3 Compliant |
LTC3891IUDC#TRPBF Overview
With a 20-WFQFN Exposed Pad package, the switching controller is suitable for a wide range of applications. It is sufficient to generate 1 outputs with this dc motor controller. Tape & Reel (TR) is the solid enclosure in which PMIC is packaged. With this function, you can deal with Transistor Driver dc switching's outputs (s). dc controls with 4V~60V voltage are supplied and operated. Qualified to work in an dc switcher with -40°C~125°C TJ. It can switch at 105kHz~835kHz 350kHz~535kHz. dc dc regulators can be carried out with Surface Mount. Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking is used for efficient switching control in the dcdc regulator. SWITCHING CONTROLLER analog IC connects the switch converters. The switching converters's terminals (s) are designed at QUAD. 20 terminations with various dc switching's functions. Some of the control techniques used by these dc dc converter ics are PULSE WIDTH MODULATION. A DC switcher's nominal voltage of 12V is input. Other relevant dc to dc converter ics can be found by searching "LTC3891". Switching converter type is specifically Switching Regulator or Controllers. It is recommended that the input voltage of the dc dc voltage regulator be 4V. Test statistics indicate DC regulator outputs 5.1V voltage. This dc to dc regulator accepts only 60V input voltage at most. For better satisfaction, the value of DC to DC voltage regulator is ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V.
LTC3891IUDC#TRPBF 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
LTC3891IUDC#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3891IUDC#TRPBF DC to DC converter applications.
- Electrical distribution systems
- Constant current circuits
- Sink circuits
- Radio equipment
- Automatic testing equipment
- Product burn-in
- Electrical power transmission
- Photovoltaic power
- Packaging
- Computer application technology