MAX8792ETD+T

The MAX8792ETD+T is a single quick-PWM step-down controller with dynamic REFIN in 14 pin TDFN package. This PWM controller provides high efficiency, excellent transient response and high DC-output accuracy needed for stepping down high-voltage batteries to generate low-voltage core or chipset/RAM bias supplies in notebook computers. The output voltage can be dynamically controlled using dynamic REFIN which supports input voltages between 0V to 2V. The REFIN adjustability combined with a resistive voltage-divider on feedback input allows MAX8792 to be configured for any output voltage between 0 to 0.9VIN. Controller senses current across synchronous rectifier to achieve low cost & highly efficient valley current-limit protection. The adjustable current limit threshold provides high degree of flexibility allowing thermally compensated protection using an NTC or foldback current-limit protection using a voltage divider derived from output. It is used in GPU core & step-down power supply.

• Supply voltage range is 2V to 26V, overvoltage protection
• Operating temperature range from -40°C to 85°C, undervoltage/thermal protection
• Quick-PWM with fast transient response, precision 2V ±10mV reference
• Supports any output capacitor, No compensation required with polymers/tantalum
• Stable with ceramic output capacitors using external compensation
• 0.5% VOUT accuracy over line and load, overvoltage protection
• Adjustable valley current limit protection, thermal compensation with NTC
• Supports foldback current limit, voltage soft start and soft shutdown
• Monotonic power-up with pre-charged output
• Power good window comparator

Notas

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party