Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 3 weeks ago) |
Mounting Type |
Surface Mount |
Package / Case |
28-SSOP (0.154, 3.90mm Width) |
Surface Mount |
YES |
Number of Pins |
28 |
Operating Temperature |
-40°C~150°C TJ |
Packaging |
Tube |
Published |
2013 |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
28 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Technology |
CMOS |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Terminal Pitch |
0.635mm |
Base Part Number |
LTC3890 |
Function |
Step-Down, Step-Up/Step-Down |
Number of Outputs |
2 |
Output Type |
Transistor Driver |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
DUAL SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4V~60V |
Control Features |
Enable, Frequency Control, Power Good, Soft Start, Tracking |
Input Voltage (Min) |
4V |
Topology |
Buck, SEPIC |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
105kHz~835kHz 350kHz~535kHz |
Input Voltage (Max) |
60V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Max Duty Cycle |
99 % |
Clock Sync |
No |
Height Seated (Max) |
1.75mm |
Length |
9.893mm |
Width |
3.899mm |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
LTC3890HGN-3#PBF Overview
With its 28-SSOP (0.154, 3.90mm Width) package, the switching controller fits the needs of most applications. It is sufficient to generate 2 outputs with this dc motor controller. Tube solid enclosure protects the pmic. There are Transistor Driver dc switching's output (s) that it can handle. A 4V~60V voltage is supplied to the dc control and used for operating it. Worked in an dc switcher with a -40°C~150°C TJ rating. There is a switch at 105kHz~835kHz 350kHz~535kHz that can be used with this controller. As it has a Surface Mount value, it can be used for general dc dc regulator. Featured in the dcdc regulator is Enable, Frequency Control, Power Good, Soft Start, Tracking which allows efficient switching control. The switch converters are connected to an analog IC with a DUAL SWITCHING CONTROLLER output. Thare switching converters has a terminal (s) at DUAL . A variety of 28 terminations are available in dc switching. Some of the control techniques used by these dc dc converter ics are PULSE WIDTH MODULATION. DC switcher's input voltageis set to 12V. You can find other relevant dc to dc converter ics by searching "LTC3890". There are only 28 pins on switching converter. Switching converter is a type of Switching Regulator or Controllers in particular. It is recommended that the dc dc voltage regulator's minimum input voltage be 4V. This dc to dc regulator accepts only 60V input voltage at most. Power-up and power-down reliability is ensured voltage regulator dc to dc by setting the maximum duty cycle to 99 %.
LTC3890HGN-3#PBF Features
Transistor Driver Outputs
Switching Frequency: 105kHz~835kHz 350kHz~535kHz
Enable, Frequency Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
Max Duty Cycle: 99 %
LTC3890HGN-3#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC3890HGN-3#PBF DC to DC converter applications.
- Electrical power transmission
- Smart grid
- Sink circuits
- Power supplies of electronic gadgets
- Driver circuits
- Telecommunications equipment
- Large fire protection systems
- Emergency lighting monitoring equipment
- Hydro power
- USB circuits