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MAX15569 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX15569 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 41 page  General Description The MAX15569 step-down controller consists of one multiphase regulator. The multiphase CPU regulator uses Maxim’s unique 2-phase QuickTune-PWM constant “on- time” architecture. The 2-phase CPU regulator runs 180° out-of-phase for true interleaved operation, minimizing input capacitance. The device’s VR is controlled by writing appropriate data into a function-mapped register file. Output volt- ages are dynamically changed through a 2-wire, fast I2C interface (clock, data), allowing the switching regula- tor to be programmed to different voltages. A slew- rate controller allows controlled voltage transition and controlled soft-start. The regulator runs in a unique smart, low-power pulse-skipping-state algorithm for best efficiency over the full load range and the best transient response with respect to common pulse- skipping methods. The device includes multiple fault-protection features: Output overvoltage protection (OVP), undervoltage pro- tection (UVP), and thermal protection. When any of these fault-protection features detect a fault condition, the con- troller shuts down. A multifunction INT output monitors output voltage, overcurrent (OC), overrange (VOUTMAX), and thermal faults (VRHOT). The controller has a programmable switching frequency, allowing 300kHz to 1400kHz per each phase of opera- tion. The controller operates with a wide variety of drivers and MOSFETs, such as the MAX15492 MOSFET driver with standard MOSFETs, or with the power stage that integrates the drivers and MOSFETs together in a single device. Applications ● ARMCorePowerSupply ● UltrabooksandTabletCoreSupply ● Voltage-PositionedStep-DownConverter ● MultiphaseDC-DCControllers Benefits and Features ● 2-PhaseQuickTune-PWMCPUCoreRegulator • Transient Phase Overlap Reduces Output Capacitance ● I2C Serial-Interface Control • Output-Voltage Control • System Status Register • Current Monitor Register ● MultifunctionINT Output • Overcurrent, Output Voltage Overrange, Overvoltage, Undervoltage, and Thermal Fault Protection ● ±5mVFBAccuracyOverLineandLoad ● 7-BitDAC(0.5Vto1.6V,10mV/LSB) ● TrueDifferentialRemoteOutputSense ● ActiveLoad-LinewithAdjustableGain ● AccurateCurrentBalanceandCurrentLimit ● 4.5Vto24VBatteryInputRange ● Programmable300kHzto1400kHzSwitching Frequency ● ProgrammableSlewRateandSoft-Start ● PassiveSoft-Shutdown(2kΩDischargeSwitch) Ordering Information appears at end of data sheet. For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX15569.related. MAX15569 2-Phase/1-Phase QuickTune-PWM Controller with Serial I2C Interface 19-6646; Rev 0; 3/13 EVALUATION KIT AVAILABLE |
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