Parameters |
Factory Lead Time |
1 Week |
Mounting Type |
Surface Mount |
Package / Case |
20-TSSOP (0.173, 4.40mm Width) Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~150°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 |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
225 |
Terminal Pitch |
0.65mm |
Base Part Number |
LTC3891 |
JESD-30 Code |
R-PDSO-G20 |
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 |
Length |
6.5mm |
Width |
4.5mm |
RoHS Status |
ROHS3 Compliant |
LTC3891HFE#TRPBF Overview
With its 20-TSSOP (0.173, 4.40mm Width) Exposed Pad package, the switching controller fits the needs of most applications. It is sufficient to generate 1 outputs with this dc motor controller. An enclosure of Tape & Reel (TR) is used to package the PMIC. A total of Transistor Driver dc switching's outputs can be handled by it. This dc control has a supply voltage and operating voltage of 4V~60V. Qualified to work in a -40°C~150°C TJ dc switcher. A switching controller such as this can switch at a value of 105kHz~835kHz 350kHz~535kHz . As it has a Surface Mount value, it can be used for general dc dc regulator. Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking is used for efficient switching control in the dcdc regulator. A SWITCHING CONTROLLER analog integrated circuit is connected to the switch converters. DUAL are the position of the terminal of the switching converters. An array of 20 terminations of dc switching. It includes PULSE WIDTH MODULATION as one of the control techniques dc dc converter ic adapts. DC switcher's input voltageis set to 12V. Other relevant dc to dc converter ics can be found by searching "LTC3891". In particular, switching converter is a type of Switching Regulator or Controllers. It is recommended to use 4V as the minimum input voltage of dc dc voltage regulator. A 5.1V voltage of DC regulator was detected in the test statistics. The dc to dc regulator can only accept a maximum input voltage of 60V. The value of DC to DC voltage regulator is set at ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V in order to fulfill the requirements more effectively.
LTC3891HFE#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
LTC3891HFE#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3891HFE#TRPBF DC to DC converter applications.
- Surface processing equipment
- Computer monitoring equipment of building
- Access control systems
- Flaw detection equipment
- Program control systems
- Planers
- seismic instrument power circuits
- Medical monitoring systems
- Linear guide
- Electrical power transmission