ISL6263C 5-Bit VID Single-Phase Voltage Regulator with Current Monitor for GPU Core Power

ISL6263C

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5-Bit VID Single-Phase Voltage Regulator with Current Monitor for GPU Core Power

Datasheets,
Related Docs
& Simulations

Ordering Information

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

Part No.

Design-In
Status

Temp.

Package

MSL

Price
US $

ISL6263CEVAL1

Active

Eval Board

N/A

ISL6263CHRZ

Active

Hi-Temp Comm

32 Ld QFN

3.95

ISL6263CHRZ-T

Active

Hi-Temp Comm

32 Ld QFN T+R

3.95

ISL6263CEVAL1Z

InActive

Eval Board

N/A

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.

MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020

SMD = Standard Microcircuit Drawing

Description

The ISL6263C IC is a Single-Phase Synchronous-Buck PWM voltage regulator for GPU core power application. It features Intersil's Robust Ripple Regulator (R³) Technology™. Integrated current monitor, differential remote sense amplifier, MOSFET driver and bootstrap diode result in smaller implementation area and lower component cost.

Intersil's R³ Technology™ combines the best features of both fixed-frequency PWM and hysteretic PWM, delivering excellent light-load efficiency and superior load transient response by commanding variable switching frequency during the transitory event. For maximum conversion efficiency, the ISL6263C automatically enters diode emulation mode (DEM) when the inductor current attempts to flow negative. DEM is highly configurable and easy to set-up. A PWM filter can be enabled, which prevents the switching frequency from entering the audible spectrum as a result of extremely light load while in DEM.

The GPU core voltage can be dynamically programmed from 0.41200V to 1.28750V by the five VID input pins without requiring sequential stepping of the VID states. The ISL6263C requires only one capacitor for both the soft-start slew-rate and the dynamic VID slew-rate by internally connecting the SOFT pin to the appropriate current source. The voltage Kelvin sensing is accomplished with an integrated unity-gain true differential amplifier.

Key Features

Precise Single-Phase Core Voltage Regulator
- 0.5% System Accuracy 0°C to +100°C
- Differential Remote GPU Die Voltage Sense
Real-Time GPU Current Monitor Output
Applications up to 25A
Input Voltage Range: +5.0V to +25.0V
Programmable PWM Frequency: 200kHz to 500kHz
Pre-Biased Output Start-Up Capability
5-Bit Voltage Identification Input (VID)
- 0.41200V to 1.28750V
- 25.75mV Steps
- Sequential or Non-Sequential VID Change On-the-Fly
Configurable PWM Modes
- Forced Continuous Conduction Mode
- Automatic Entry and Exit of Diode Emulation Mode
- Selectable Audible Frequency PWM Filter
Integrated MOSFET Drivers and Bootstrap Diode
Choice of Current Sense Schemes
- Lossless Inductor DCR Current Sense
- Precise Resistive Current Sense
Overvoltage, Undervoltage and Overcurrent Protection
Pb-Free (RoHS Compliant)

Related Documentation

Datasheet(s):
5-Bit VID Single-Phase Voltage Regulator with Current Monitor for GPU Core Power

Evaluation Board(s):
ISL6263CEVAL1/1Z, ISL6263DEVAL1Z Evaluation Boards User Guide

Technical Homepage:
Automotive

Parametric Data


V_IN (min) (V)		5

V_IN (max) (V)		25

V_OUT (min) (V)		.412

V_OUT (max) (V)		1.2875

I_OUT (max) (A)		25

V_BIAS (V)		5

Applications		GPU core power

Application Block Diagrams

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Parametric Table

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