Liner Technology LT3581IMSE#PBF, LT3581EMSE#PBF, LT3581IMSE#TRPBF, LT3581EMSE#TRPBF 3.3A Boost/Inverting DC/DC Converter with Fault Protection
FEATURES
• 3.3A, 42V Combined Power Switch
• Master/Slave (1.9A/1.4A) Switch Design
• Output Short Circuit Protection
• Wide Input Range: 2.5V to 22V Operating, 40V Maximum Transient
• Switching Frequency Up to 2.5MHz
• Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter
• User Configurable Undervoltage Lockout
• Low VCESAT Switch: 250mV at 2.75A (Typical)
• Can be Synchronized to External Clock
• Can Be Synchronized to other Switching Regulators
• High Gain SHDN Pin Accepts Slowly Varying Input Signals
• 14-Pin 4mm × 3mm DFN and 16-Lead MSE Packages
APPLICATIONS
• Local Power Supply
• Vacuum Fluorescent Display (VFD) Bias Supplies
• TFT-LCD Bias Supplies
• Automotive Engine Control Unit (ECU) Power
DESCRIPTION
The LT®3581 is a PWM DC/DC converter with built-in fault protection features to aid in protecting against output shorts, input/output overvoltages, and vertemperature conditions. The part consists of a 42V master switch, and a 42V slave switch that can be tied together for a total current limit of 3.3A.
The LT3581 is ideal for many local power supply designs. It can be easily configured in Boost, SEPIC, Inverting or Flyback configurations, and is capable of generating 12V at 830mA, or -12V at 625mA from a 5V input. In addition, the LT3581's slave switch allows the part to be configured in high voltage, high power charge pump topologies that are very efficient and require fewer components than traditional circuits.
The LT3581's switching frequency range can be set between 200kHz and 2.5MHz. The part may be clocked internally at a frequency set by the resistor from the RT pin to ground, or it may be synchronized to an external clock. A buffered version of the clock signal is driven out of the CLKOUT pin, and may be used to synchronize other compatible switching regulator ICs to the LT3581.
The LT3581 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function. Additional features such as frequency foldback and soft-start are integrated. The LT3581 is available in 14-Pin 4mm × 3mm DFN and 16-Lead MSE packages.
| Lifecycle Status |
Production |
| Manufacturer Lifecycle Status |
PRODUCTION |
| Physical |
| Case/Package |
SOP |
| Number of Pins |
16 |
| Technical |
| Max Operating Temperature |
125 °C |
| Min Input Voltage |
2.5 V |
| Min Operating Temperature |
-40 °C |
| Number of Outputs |
1 |
| Output Current |
3.3 A |
| Output Type |
Adjustable |
| Output Voltage |
42 V |
| Switching Frequency |
2.5 MHz |
| Synchronous Rectifier |
No |
| Compliance |
Linear Technology Corporation was an American semiconductor company that designed, manufactured and marketed high performance analog integrated circuits. Applications for the company's products included telecommunications, cellular telephones, networking products, notebook and desktop computers, video/multimedia, industrial instrumentation, automotive electronics, factory automation, process control,and space systems.
Notice:
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Company Profile
TELEFLY Telecommunications Equipment Co., Ltd. is a leading Chinese Telecommunications Equipment manufacturer and a semiconductor chip and other electronic component distributor founded in 2004, certified by SGS, CFL Certification Center. We provide high quality and price competitive semiconductor chips and other electronic components, Ethernet switch ,SFP transceiver,media converter ,patch cable, Fiber Optic Splitter and so on. Up till now, our products and solutions have been deployed in over 60 countries and regions, TELEFLY is looking forward to strengthening friendly cooperative relationships with all clients, creating benefits together and sharing the joy of success!
Company Profile
Our Advantages
Why you choose TELEFLY be one of your partner?
1.Customer get satisfied quality and service with competitive price and punctual delivery.
2.OEM service with 13-year experiences, free samples are available.
3.Prompt answer for any question and inquiry in the shortest time.
4.Factory directly,reduce your cost and save time.
1.Customer get satisfied quality and service with competitive price and punctual delivery.
2.OEM service with 13-year experiences, free samples are available.
3.Prompt answer for any question and inquiry in the shortest time.
4.Factory directly,reduce your cost and save time.
FAQ
Q1 . What your MOQ?
A1 .If not specified, 1 pcs is ok,whatever how many you need,and we will also give you the best service.
Q2.What certification did you get?
A2 : Our product strictly operate the ISO9001:2008 quality control system and we passed the CE,FCC,ROHS and SGS test,you can trust us.
Q3 :What about your package and delivery,will it broke during shipping?
A3:You don't need to worry about the package,we will use shockproof case for delivering.
Q4.What your common delivery way?
A4:By air, by sea or express(UPS,DHL,Fedex,TNT,EMS...)We will make a perfect delivery plan for you.
Q5.Tell me some detail about warrant time.
A5:We give you the promise if any question during 1 year and not cause by human factors,we will fix it.
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