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The LM25143RHAR is a 42V synchronous step-down DC/DC controller for high current single or dual outputs. Derived from a family of wide VIN range controllers, the device features an interleaved, stackable peak current mode control architecture for simple loop compensation, fast transient response, excellent load and line regulation, and precise current sharing through parallel phasing for high output currents. 65 ns ultra-short on-time for the high-side switch facilitates large buck ratios and supports direct buck conversion from 12V or 24V inputs to low voltage rails, reducing system complexity and cost. The ultra-short on-time of the high-side switch helps achieve a large step-down ratio to support direct buck conversion from a 12V or 24V input to a low-voltage rail, reducing system complexity and cost. The LM25143 can continue to operate at nearly 100% duty cycle as needed even after a sudden drop in input voltage to 3.5V.

Features

• Functional Safety-Capable

– Documentation available to aid functional safety system design

• Versatile synchronous buck DC/DC controller

– Wide input voltage range of 3.5 V to 42 V

– 1% accurate, fixed 3.3-V, 5-V, or adjustable outputs from 0.6 V to 36 V

– 150°C maximum junction temperature

– 4-µA typical shutdown mode current

– 15-µA typical no-load standby current

• Two interleaved synchronous buck channels

– Dual channel or single-output multiphase

– 65-ns tON(min) for high VIN/VOUT ratio

– 60-ns tOFF(min) for low dropout

• Inherent protection features for robust design

– Shunt or inductor DCR current sensing

– Hiccup mode overcurrent protection

– Independent ENABLE and PGOOD functions

– Adjustable output voltage soft start

– VCC, VDDA, and gate-drive UVLO protection

– Thermal shutdown protection with hysteresis

• Optimized for CISPR 11 and CISPR 32 class B conducted and radiated EMI requirements

– Slew-rate controlled adaptive gate drivers

– Spread spectrum reduces peak emissions

• 100-kHz to 2.2-MHz switching frequency

– SYNC in and SYNC out capability

– Selectable diode emulation or FPWM modes

• 6-mm × 6-mm VQFN-40 package

• Create a custom design using the LM25143 with WEBENCH® Power Designer

Applications

• Personal electronics: computer peripherals

• Industrial: 24-V bus systems, factory automation and control, robotics, power delivery

• Enterprise systems: high-performance computingance computing

• 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.