ANALOG DEVICES LT8608IDC#TRMPBF DC-DC Switching Synchronous Buck Regulator, Adjustable, 2.5 to 42V in, 0.778V / 1.5A Out, DFN-EP-8

LT8608IDC#TRMPBF is a compact, high-efficiency, high-speed synchronous monolithic step-down switching regulator, consuming only 1.7µA of quiescent current. Capable of delivering 1.5A of continuous current, the LT8608 employs low ripple burst mode operation, enabling high efficiency even at very low output currents, with output ripple typically below 10mV. Internal compensation with peak current mode topology allows for the use of small inductors, resulting in fast transient response and good loop stability. The EN/UV pin features an accurate 1V threshold and can be utilized to program VIN undervoltage lockout or to shut down the LT8608. Additionally, the PG flag signals when VOUT is within ±8.5% of the programmed output voltage as well as fault conditions. Applications for this regulator include general-purpose step-down and low EMI step-down applications.

• Wide input voltage range from 3.0V to 42V, output soft-start and tracking
• Spread spectrum frequency modulation for low EMI, internal compensation
• Low dropout, peak current mode operation, accurate 1V enable pin threshold
• VIN quiescent current is 1µA typical at (VEN/UV = 0V, VSYNC = 0V, TA = 25°C)
• Oscillator frequency is 200KHz typical at (RT = 221k, ILOAD = 500mA, TA = 25°C)
• Minimum on-time is 35ns typical at (ILOAD = 1A, SYNC = 0V)
• SW leakage current is 15µA maximum
• Top power NMOS on-resistance is 350mohm typical at (ILOAD = 0.5A, TA = 25°C)
• Feedback pin input current is ±20nA maximum at VFB = 1V
• Operating junction temperature range from -40°C to 125°C, 8-lead plastic DFN package

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