MAX16930AGLR/VY+

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MAX16930AGLR/VY+ is a power management integrated circuit (PMIC) specifically designed to provide a flexible, efficient, and cost-effective voltage regulation solution for dual-supply and single-supply mobile power supplies. It is a DC-DC switching controller that offers low quiescent current, low-noise switching, and regulation accuracy over a wide input and output voltage range. The chip is available in the small TQFN-6 3 mm2 package and integrates a number of features, such as a wide programmable voltage range, an adjustable operating frequency, an adaptive on-time, an automatic loop compensation approach, a versatile power-good indicator, and an on-chip overtemperature protection.

The MAX16930AGLR/VY+ is especially suitable for 1S to 4S Li-ion/Li-polymer battery management, laptop power supply, and other mobile applications. It offers the flexibility to program and configure the input, output, and switching characteristics of the underlying DC-DC switching converter to match the specific requirements of the application. The MAX16930AGLR/VY+ offers unparalleled flexibility by featuring a wide input voltage range of 2.5V to 6V and an output voltage range of 0.8V to 5V. The typical output current is 0.7A and the output ripple is 0.25mV.

The MAX16930AGLR/VY+ uses a pulse-width modulation (PWM) approach to regulate the output voltage. The PWM control is based on an adaptive-on-time technique, which provides a higher efficiency rating over its predecessor, the MAX16930H. The PWM frequency is adjustable from 300kHz to 1.2MHz, which allows for higher degrees of efficiency when lower frequency is used for high output current applications. The switching frequency is adjusted in a linear manner by increasing or decreasing the on-time of the internal oscillator.

The MAX16930AGLR/VY+ includes a power-good indicator, which provides an output signal when the regulated output voltage is within the specified range. The power-good indicator is configurable and is typically used to control the enable/disable of the processor. Another important feature of the chip is the built-in Overtemperature Protection (OTP) circuit, which prevents damage to the system in case of over temperature conditions. The OTP has two thresholds; when the chip temperature rises above 85°C, the output voltage is disabled and when the temperature reaches 90°C, the chip is put into its thermal protection Mode.

The stability loop compensation of the MAX16930AGLR/VY+ is automatically adjusted to maintain the DC output voltage within the specified range. The MAX16930AGLR/VY+ can be used in either discontinuous mode or continuous mode, depending on the load conditions. With low-current loads, the chip operates in discontinuous mode, which results in higher efficiency. With high-current loads, the device switches over to continuous mode for improved noise performance.

In summary, the MAX16930AGLR/VY+ is an ideal solution for applications that require efficient, high-accuracy voltage regulation and a flexible selection of voltage and operating frequency. The wide range of features and operating modes provides the system designer with a cost-effective and highly-flexible solution that meets the most demanding application requirements.

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