ISL95870BIRZ-T

ISL95870BIRZ-T is a PWM DC/DC controller with VID inputs for portable GPU core-voltage regulator. It 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 four resistor-programmed setpoint reference voltages that directly set the output voltage of the converter between 0.5V and 1.5V, and up to 5V with a feedback voltage divider. Compared with R modulator, the R4 modulator has equivalent light-load efficiency, faster transient performance, accurately regulated frequency control and all internal compensation. Applications include mobile PC graphical processing unit VCC rail, mobile PC I/O controller hub VCC rail, mobile PC memory controller hub VCC rail.

• Precision regulation, proprietary R4™ frequency control loop
• Optimal transient response, intersil’s R4™ modulator technology
• Output remote sense
• Extremely flexible output voltage programmability
• 2-Bit VID selects four independent setpoint voltages
• Simple resistor programming of setpoint voltages
• Automatic diode emulation mode for highest efficiency
• Power-good monitor for soft-start and fault detection
• Switching frequency accuracy range from -15 to +15% (PWM Mode = CCM)
• 20 lead QFN package, temperature range from -40 to +100°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.