AD releases ADP1612 and ADP1613 converters

The ADP1612 and ADP1613 converters feature wide input-voltage support to enable efficient power management for portable consumer electronics, industrial and instrumentation applications.

The converters allow designers to boost input voltages as low as 1.8V up to output voltages as high as 20V.

This performance, combined with thin-profile packaging and high switching frequency operation, allows the converters to increase battery run times for portable industrial and consumer applications, such as TFT LCDs or cell phones.

Supporting a broad input-voltage range (1.8 to 5.5V for the ADP1612 and 2.5 to 5.5V for the ADP1613), an adjustable output voltage allows the new step-up converters to extend battery life with unregulated input voltage operation.

The boost converters use a PWM (pulse-width modulation) current-mode architecture to regulate the output voltage across load conditions and to help reduce the risk of inrush currents at start-up.

This allows the devices to deliver up to 93 per cent efficiency with fast transient response and stable output-voltage levels for greater system reliability.

The ADP1612 and ADP1613 also feature pin-selectable switching frequencies, allowing them to operate at 650kHz (kilohertz) for maximum efficiency or at 1.3MHz (megahertz), which enables the use of smaller external passive components.