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ISL62873 Datasheet Pwm DC/dc Controller

Manufacturer: Renesas

Overview: ISL62873 NcO1oN-T8nO8Rt8aRE-cICEtNCOoTuOEMrRMMTSMeEIcLNEhNDonDEricDEwaDwlFSwORu.ERipnPpNtLeoEArrWstCiClE.DceMEonEmSteNI/GrtTsaNctS DATASHEET FN6930 PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator Rev 1.00 August 31, 2010 The ISL62873 is a Single-Phase Synchronous-Buck PWM voltage regulator featuring Intersil’s Robust Ripple Regulator (R3) Technology™. The wide 3.3V to 25V input voltage range is ideal for systems that run on battery or AC-adapter power sources. The ISL62873 is a low-cost solution for applications requiring dynamically selected slew-rate controlled output voltages. The soft-start and dynamic setpoint slew-rates are capacitor programmed. Voltage identification logic-inputs select two resistor-programmed setpoint reference voltages that directly set the output voltage of the converter between 0.5V to 1.5V, and up to 3.3V using a feedback voltage divider.

Key Features

  • Robust integrated MOSFET drivers and Schottky bootstrap diode reduce the implementation area and lower component cost. Intersil’s R3 Technology™ combines the best features of both fixed-frequency and hysteretic PWM control. The PWM frequency is 300kHz during static operation, becoming variable during changes in load, setpoint voltage, and input voltage when changing between battery and AC-adapter power. The modulators ability to change the PWM switching frequency during these events in conjunct.

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