Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 3 weeks ago) |
Mounting Type |
Surface Mount |
Package / Case |
20-WFQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
20 |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
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 |
QUAD |
Peak Reflow Temperature (Cel) |
225 |
Terminal Pitch |
0.5mm |
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 |
Height Seated (Max) |
0.8mm |
Length |
4mm |
Width |
3mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
LTC3891EUDC#TRPBF Overview
Capsuled in the 20-WFQFN Exposed Pad package, the switching controller can be used for a wide range of applications. The dc motor controller is adquate to generate for 1 outputs. A solid enclosure of Tape & Reel (TR) surrounds pmic. A total of Transistor Driver dc switching's outputs can be handled by it. dc control's supply and operating voltages are 4V~60V. Worked in a -40°C~125°C TJ dc switcher before. It can switch at 105kHz~835kHz 350kHz~535kHz. The Surface Mount value makes it suitable for general dc dc regulator. DCDC regulator is controlled efficiently by Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking. The switch converters are connected to an analog IC with a SWITCHING CONTROLLER output. There are a QUAD terminal on the switching converters. The 20 terminations can be used for a wide range of dc switching. These dc dc converter ics adapt a variety of control techniques, including PULSE WIDTH MODULATION. There is a DC switcher's nominal voltage of 12V. A search for "LTC3891" will reveal other relevant dc to dc converter ics. Switching converter has a total of 20 pins. Specifically, switching converter falls under the Switching Regulator or Controllers category. 4V should be the minimum input voltage for the dc dc voltage regulator. Test statistics indicate DC regulator outputs 24V voltage. It should be fully noted that the dc to dc regulator only accepts 60V input voltage at most. If you are starting a new project, you should note the dc dc regulator's typical output current is 5A. 835kHz is the maximum frequency of this dc regulators. As a result, DC to DC voltage regulator has a value of ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V so that the need can be met more directly.
LTC3891EUDC#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
LTC3891EUDC#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3891EUDC#TRPBF DC to DC converter applications.
- Die casting equipment
- Network technology
- Sensitive electronic devices
- Grinders
- Post equipment
- Window air conditioners
- Printing equipment
- Smart grid
- Computer rooms
- Direct power supply system