Parameters |
Factory Lead Time |
1 Week |
Mounting Type |
Surface Mount |
Package / Case |
38-WFQFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
Published |
2007 |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
38 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Technology |
CMOS |
Terminal Position |
QUAD |
Terminal Pitch |
0.5mm |
Base Part Number |
LTC3859 |
Function |
Step-Down, Step-Up/Step-Down |
Number of Outputs |
3 |
Output Voltage |
5.4V |
Output Type |
Transistor Driver |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
DUAL SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4.5V~38V |
Control Features |
Enable, Frequency Control, Power Good, Soft Start, Tracking |
Input Voltage (Min) |
4.5V |
Topology |
Buck, Buck-Boost, SEPIC |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
115kHz~835kHz 350kHz~535kHz |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PHASE-SHIFT |
Duty Cycle (Max) |
99%, 100% |
Clock Sync |
No |
Output Phases |
2 |
Height Seated (Max) |
0.8mm |
Length |
7mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
LTC3859AIUHF#TRPBF Overview
With a 38-WFQFN Exposed Pad package, the switching controller is suitable for a wide range of applications. The dc motor controller is adquate to generate for 3 outputs. There is a Tape & Reel (TR) solid enclosure around the pmic. There are Transistor Driver dc switching's output (s) that it can handle. 4.5V~38V is the supply voltage and the operating voltage of the dc control. Work well in dc switchers with a -40°C~125°C TJ. Switching can be done at 115kHz~835kHz 350kHz~535kHz with this switching controller. dc dc regulator can be generalized using Surface Mount. DCDC regulator is controlled efficiently by Enable, Frequency Control, Power Good, Soft Start, Tracking. The switch converters are connected to an analog IC with a DUAL SWITCHING CONTROLLER output. Thare switching converters has a terminal (s) at QUAD . 38 terminations with a variety of function. To name a few of the control techniques these dc dc converter ics adapt, it includes PULSE WIDTH MODULATION. It is inputted with a DC switcher's voltage of 12V. In addition to "LTC3859", there are other relevant dc to dc converter ics you can find. Particularly, switching converter is a type of Switching Regulator or Controllers. Input voltage of dc dc voltage regulator should be 4.5V. Statistically, DC regulator outputs 5.4V volts.
LTC3859AIUHF#TRPBF Features
Transistor Driver Outputs
Switching Frequency: 115kHz~835kHz 350kHz~535kHz
Enable, Frequency Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
LTC3859AIUHF#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3859AIUHF#TRPBF DC to DC converter applications.
- Digital display device
- Combined machine tools
- Surge protection circuits
- Nuclear power plants
- Computer-related products
- Computed tomography (CT)
- Access control systems
- Low output voltage switching power supply circuits
- Flaw detection equipment
- SMT equipment