Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 1 week 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 |
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 |
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 |
LTC3891IUDC#PBF Overview
It comes in the 20-WFQFN Exposed Pad package, which makes switching controller suitable for most applications. This dc motor controller can be used to generate outputs with 1 numbers. Packaged in solid enclosures, this pmic has a Tube rating. A total of Transistor Driver dc switching's outputs can be handled by it. dc controls with 4V~60V voltage are supplied and operated. A -40°C~125°C TJ dc switcher is not a problem. In this switching controller, the switch can be set to 105kHz~835kHz 350kHz~535kHz. The Surface Mount makes it ideal for general dc dc regulator. For efficient switching control, the dcdc regulator features Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking. Connected to a SWITCHING CONTROLLER analog IC, the switch converters are connected to a power supply. Switching converters are designed with the terminal (s) at position QUAD . Different dc switching's functions can be applied to 20 terminations. Some of the control techniques adapted by these dc dc converter ics include PULSE WIDTH MODULATION. DC switcher's voltage input of 12V. LTC3891 can be searched for other relevant dc to dc converter ics. 20 pins are on switching converter. 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. Statistically, DC regulator outputs 24V volts. It should be noted that the dc to dc regulator only accepts 60V voltage as input voltage. In most cases, the output current of the dc dc regulator will be 5A, so note that when you start the project. DC regulator835kHz has the maximum frequency. To better satisfy the need, DC to DC voltage regulator has a value of ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V.
LTC3891IUDC#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
LTC3891IUDC#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC3891IUDC#PBF DC to DC converter applications.
- Power supplies of electronic gadgets
- Electrical distribution systems
- Computed tomography (CT)
- Gear/thread machining machines
- Television equipment
- Balance equipment
- Direct power supply system
- Automation technology
- Printing
- Electric heating, lighting