NXP Semiconductors' updated DC6M60xX6 family consists of 6-MHz, 650-mA step-down dc-dc converters with input voltages between 2.3 V and 5.5 V and fixed output voltages of 1.2 V, 1.5 V, 1.8 V or 2.85 V. The devices of DC6M60xX6 family are optimized for battery-driven applications. Their high efficiency of up to 95 % enables an extended battery life in all portable designs.
Buck operation at a switching frequency of 6 MHz allows using only a small low-cost 470 nH coil and two capacitors. Besides working with standard chip inductors, the DC6M60xX6 family devices also support Printed-Circuit Board (PCB) coils and air coils. Product versions with and without automatic mode selection between Pulse Frequency Modulation (PFM) and Pulse Width Modulation (PWM) are available. Optionally the devices can be switched to forced PWM mode.
These dc-dc converters feature a 1.0 x 1.4 mm BGA-style WLCSP6 package and ultra-low output voltage ripple performance of only 7 mV (typ). Quiescent current in shutdown is 0.2 µA (typ). These dc-dc converters include inrush, short circuit & over- temperature protection.