Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
PRODUCTION (Last Updated: 1 week ago) |
Mounting Type |
Surface Mount |
Package / Case |
28-WFQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
28 |
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 |
28 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Additional Feature |
ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 38V |
Subcategory |
Switching Regulator or Controllers |
Technology |
CMOS |
Terminal Position |
QUAD |
Peak Reflow Temperature (Cel) |
225 |
Base Part Number |
LTC3789 |
Function |
Step-Up/Step-Down |
Number of Outputs |
2 |
Output Voltage |
38V |
Output Type |
Transistor Driver |
Max Output Current |
5A |
Input Voltage-Nom |
15V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Output Current |
20A |
Voltage - Supply (Vcc/Vdd) |
4V~38V |
Control Features |
Current Limit, Enable, Frequency Control, Power Good, Soft Start |
Max Output Voltage |
38V |
Topology |
Buck-Boost |
Min Input Voltage |
4V |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
200kHz~640kHz |
Max Input Voltage |
38V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Min Output Voltage |
800mV |
Switcher Configuration |
PHASE-SHIFT |
Max Frequency |
710kHz |
Duty Cycle (Max) |
90% |
Clock Sync |
No |
Output Phases |
1 |
Height |
700μm |
Length |
4mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
LTC3789IUFD#PBF Overview
With a 28-WFQFN Exposed Pad package, the switching controller is suitable for a wide range of applications. There is enough capacity in the dc motor controller to generate the output for the 2 input. Packaged in solid enclosures, this pmic has a Tube rating. With this function, you can deal with Transistor Driver dc switching's outputs (s). 4V~38V is the operating voltage and supply voltage of the dc control. Suitable for a -40°C~125°C TJ dc switcher. With this switching controller, you can switch at 200kHz~640kHz. The Surface Mount value makes it suitable for general dc dc regulator. Featured in the dcdc regulator is Current Limit, Enable, Frequency Control, Power Good, Soft Start which allows efficient switching control. The switch converters are connected to an analog IC with a SWITCHING CONTROLLER output. There are a QUAD terminal on the switching converters. A variety of 28 terminations are available in dc switching. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. It is inputted with a DC switcher's voltage of 15V. LTC3789 can be used to locate other relevant dc to dc converter ics. In total, switching converter has 28 pins. Switching converter is a special type of Switching Regulator or Controllers. A 38V voltage of DC regulator was detected in the test statistics. If you are starting a new project, you should note the dc dc regulator's typical output current is 20A. DC regulator710kHz has the maximum frequency. For better satisfaction, the value of DC to DC voltage regulator is ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 38V. In order to limit the voltage of a dc switcher whose maximum input voltage is 38V, it must be limited by the user. 4V is the required supply voltage. DC switchers cannot produce output currents greater than 5A. Datasheets indicate that the switching converter can output 38V volts at its maximum. Its lowest voltage output is not less than 800mV.
LTC3789IUFD#PBF Features
Transistor Driver Outputs
Switching Frequency: 200kHz~640kHz
Current Limit, Enable, Frequency Control, Power Good, Soft Start
PULSE WIDTH MODULATION
ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 38V
LTC3789IUFD#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC3789IUFD#PBF DC to DC converter applications.
- Direct power supply system
- Milling machines
- Emergency lighting monitoring equipment
- Hydrogen power
- Product testing
- Overvoltage protection circuits in TV sets
- Smoke exhaust equipment
- Remotely powered electric motors
- Hydro power
- Textile machinery