LM27342SD

• Space-saving 3× 3mm LLC-10&eMSOP-10 package
• Wide input voltage range of 3V to 20V
• The wide output voltage range is from 1V to 18V
• LM27341 can provide a maximum output current of 1.5A
• LM27342 provides a maximum output current of 2A
• High switching frequency of 2 MHz
• 1.00兆赫频率同步西南 2.35 MHz
• 150mΩ NMOS switch internal bootstrap power supply
• 70 nA shut-off current
• Internal voltage reference accuracy of 1%
• Peak current mode, PWM mode
• Thermal shutdown
• LM27341Q and LM27342Q are AEC-Q100 qualifying and in an automotive-grade manufacturing process

illustrate

LM27341 and LM27342 monolithic regulators, high-frequency, PWM step-down DC-DC 10-pin LLP converters and 10-pin eMSOP packages. They contain all the active functions, providing local DC-DC with fast transient response and minimal PCB area for precise adjustment of conversion.

Easy to use with a minimum number of external components LM27341 and LM27342. Capable of driving a 1.5A load or 2A respectively with the inside of a 150mΩ NMOS tube, the switch is at the optimal power density result for a while. The world-class control circuitry allows for on-time as low as 65 nanoseconds, supporting very high frequency conversions. The switching frequency is internally set to 2 MHz and 1 synchronized to 2.35 MHz, which allows for extremely small surface mount inductors and capacitors. Even at very high operating frequencies, efficiencies of up to 90% are easily achievable. Including a low shutdown current of over 70 nA with external shutdown. The LM27341and LM27342 wide operating conditions and high regulation performance by utilizing functions such as peak current mode control and internal compensation. Other features include internal soft-start circuitry to reduce inrush current, pulse through pulse current limiting, thermal shutdown, and output overvoltage protection.

apply

• Local 12V to Vcore step-down converter
• Radio power
• At the heart of the hard drive
• Stb
• Car
• USB-powered devices
• DSL modem