Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The L3751PUR synchronous buck controller is a 6V to 75V wide input voltage range controller. It features a very high voltage conversion ratio over the 100kHz to 1MHz switching frequency range, thanks to a minimum on-time of 40ns. The diode emulation (DEM) uses a pulse hopping mode to maximise efficiency at light loads and provide controlled output voltage ripple. Forced PWM (FPWM) over the load range keeps the switching frequency constant and minimises output voltage ripple.

Product Attributes

Output Type: Transistor Driver

Function: Buck

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Output Stage: 1

Voltage - Supply (Vcc/Vdd): 6V ~ 75V

Frequency - Switching; 100kHz ~ 1MHz

Duty Cycle (Maximum): 99%

Synchronous Rectifier: Yes

Clock Synchronisation: Yes

Control Characteristics: Current Limit, No-Load Time Control, Enable, Frequency Control, Power Good, Soft Start, Synchronisation, Tracking

Operating Temperature: -40°C ~ 125°C (TJ)

Mounting Type: Surface Mount, Wettable Sides

Package/Housing: 20-VFQFN Exposed Pad

Supplier Device Package: 20-QFN (3.5x4.5)

Applications

● Telecommunications, networking and industrial applications

● Fail-safe systems

● Unregulated 24V and 48V input voltage buses

● Conversion from high voltage batteries to 12V and 5V power rails

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.