ISL80030DEMO1Z

The ISL80030 ishighly efficient, monolithic, synchronous step-down DC/DC converters that can deliver up to 3A of continuous output current from a 2.7V to 5.5V input supply. They use peak current mode control architecture to allow very low duty cycle operation. They operate at either a 1MHz or 2MHz switching frequency, thereby providing superior transient response and allowing for the use of small inductors. They have excellent stability. The ISL80030 integrate very low rDS(ON) MOSFETs in order to maximize efficiency. In addition, since the high-side MOSFET is a PMOS, the need for a Boot capacitor is eliminated, thereby reducing external component count. They can operate at 100% duty cycle. The ISL80030 configured for PFM discontinuous conduction operation, provides high efficiency by reducing switching losses at light loads. ISL80030 configured for PWM pulse width modulation operation, provides a fast transient response, which helps reduce the output noise and RF interference. These devices are offered in a space saving 8 pin 2mmx2mm DFN lead-free package with exposed pad for improved thermal performance. The complete converter occupies less than 64mm2 area.

• VIN range 2.7V to 5.5V
• Up to 3A of output current
• Switching frequency is 1MHz or 2MHz
• 35µA quiescent current (ISL80031/A)
• Overcurrent and short-circuit protection
• Over-temperature/thermal protection
• Negative current protection
• Power-good and enable
• 100% duty cycle
• Internal soft-start and soft-stop
• VIN under voltage lockout and VOUT overvoltage protection
• Up to 95% peak efficiency