LT8642SEV#PBF

LT8642S is a synchronous step-down regulator features second generation Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. This includes the integration of bypass capacitors to optimize all the fast current loops inside and make it easy to achieve advertised EMI performance by eliminating layout sensitivity. The fast, clean, low-overshoot switching edges enable high efficiency operation even at high switching frequencies, leading to a small overall solution size. Peak current mode control with a 20ns minimum on-time allows high step down ratios even at high switching frequencies. External compensation via the VC pin allows for fast transient response at high switching frequencies. A CLKOUT pin enables synchronizing other regulators to the device. It is used in application such as server power applications, automotive and industrial supplies, general purpose step-down etc.

• Ultralow EMI emissions on any PCB, eliminates PCB layout sensitivity
• Internal bypass capacitors reduce radiated EMI, optional spread spectrum modulation
• Wide input voltage range is 2.8V to 18V
• 10A output current, external compensation: fast transient response and current sharing
• Output ripple is 10mVP-P, forced continuous mode
• 240µA IQ regulating 12VIN to 1.2VOUT
• Output soft-start and power good, fast minimum switch on-time is 20ns typical
• Adjustable and synchronizable frequency is 200KHz to 3MHz
• Operating junction temperature is -40°C to 125°C
• Package style is 24-lead LQFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party