LTC3306CACBZ-R7

The LTC3306 is a very small, high efficiency, low noise, monolithic synchronous step-down DC/DC converter capable of providing as much as 1.75A average output current from a 2.25V to 5.5V input supply. Using constant frequency, peak current mode control at 2MHz switching frequency, and with a minimum on-time of 22ns, this regulator achieves fast transient response and precise regulation in an extremely small solution size. The LTC3306 is available in forced continuous mode for lower noise, or low-ripple Burst Mode operation for higher efficiency at light load. The LTC3306 is available with an external resistor programmable output or with fixed output voltages from 500mV to 3.65V in 50mV increments, and 100% duty cycle operation delivers very low drop out voltage. Other features include a high precision PGOOD output, a precision enable threshold, output overvoltage protection, thermal shutdown, and output short-circuit protection. This device is available in a 6-pin 1.6mm × 1mm, 0.5mm pitch WLCSP package.

Applications

• General Purpose
• Industrial
• GSM Supplies
• Distributed DC Power Systems (POL)
• FPGA, ASIC, µP Core Supplies

Key features

• VOUT Range: 0.5V to 3.65V
• 2MHz Switching Frequency
• Low Ripple Burst Mode or Forced Continuous Mode of Operation
• High Efficiency: 30mΩ NMOS, 100mΩ PMOS
• Peak Current Mode Control
• 22ns Minimum On-Time
• Wide Bandwidth, Fast Transient Response
• Safely Tolerates Inductor Saturation in Overload
• VIN Range: 2.25V to 5.5V
• VOUT Accuracy: ±1.0%
• Precision 400mV Enable Threshold
• Low Shutdown Current (1μA)
• Internal Compensation
• Internal Soft-Start
• Power Good Output
• Tiny WLCSP Package and Few Tiny External Components Yield a Complete Solution Size of 9mm