Parameters |
Factory Lead Time |
1 Week |
Mounting Type |
Surface Mount |
Package / Case |
20-WFQFN 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 |
QUAD |
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 |
LTC3891HUDC#TRPBF Overview
With its 20-WFQFN Exposed Pad package, the switching controller fits the needs of most applications. 1 outputs can be generated with the dc motor controller. Packaged in solid enclosures, this pmic has a Tape & Reel (TR) rating. The program can handle Transistor Driver dc switching's outputs (s). dc controls with 4V~60V voltage are supplied and operated. Worked in a -40°C~150°C TJ dc switcher before. 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. Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking is used for efficient switching control in the dcdc regulator. An analog IC with the SWITCHING CONTROLLER signal is connected to the switch converters. The switching converters's terminals (s) are designed at QUAD. An array of 20 terminations of dc switching. This dc dc converter ic uses a variety of control techniques, including PULSE WIDTH MODULATION. DC switcher's input voltageis 12V volts. LTC3891 can be used to locate other relevant dc to dc converter ics. Switching converter is a special type of Switching Regulator or Controllers. 4V should be the minimum input voltage for the dc dc voltage regulator. The test statistics indicate that DC regulator outputs a voltage of 5.1V. The dc to dc regulator can only accept a maximum input voltage of 60V. 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.
LTC3891HUDC#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
LTC3891HUDC#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3891HUDC#TRPBF DC to DC converter applications.
- Correction machines
- Computer-related products
- Alternators
- USB circuits
- Various CNC machine tools
- Large fire protection systems
- Balance equipment
- Series voltage regulation circuits
- Motor controller circuits
- Current source circuits