MAX8720 Datasheet PDF | Maxim Integrated

Maxim Integrated MAX8720

The MAX8720 step-down controller is intended for core CPU DC-DC converters in notebook computers. It features a dynamically adjustable output, ultra-fast transient response, high DC accuracy, and the high efficiency needed for leading-edge CPU core power supplies. The output voltage can be dynamically adjusted through the 6-bit digital-to-analog converter (DAC) over a 0.275V to 1.850V range in 25mV steps.

Part No.	MAX8720
Datasheet	MAX8720 Download
Manufacturer	Maxim Integrated
Description	Dynamically Adjustable 6-Bit VID Step-Down Controller
Buy	Stock & Price

FEATURES

♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Quick-PWM Architecture ±1% VOUT Accuracy Over Line and Load 6-Bit On-Board DAC with Input Muxes Precision-Adjustable VOUT Slew Control 0.275V to 1.850V Output Adjust Range Remote Feedback and Ground Sense Supports Voltage-Positioned

APPLICATIONS

2V to 28V Battery Input Range 200kHz/300kHz/550kHz/1000kHz Switching Frequency Over/Undervoltage Protection Drives Large Synchronous-Rectifier FETs 800µA (typ) ICC Supply Current 10µA (typ) Shutdown Supply Current 2V ±0.75% Reference Output PGOOD Blanking During Transition

GENERAL DESCRIPTION

MAXIM’s proprietary Quick-PWM™ quick-response, constant-on-time, PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX8720 has independent four-level logic inputs for setting the suspend voltage (S0-S1). Precision slew-rate control provides “just-in-time” arrival at the new DAC setting, minimizing surge currents to and from the battery.