ISL62884CIRTZ Intersil, ISL62884CIRTZ Datasheet - Page 5

• Manufacturer Part Number: ISL62884CIRTZ
• Description: IC REG PWM SGL PHASE 28TQFN
• Manufacturer: Intersil

Specifications of ISL62884CIRTZ

• Applications: Controller, Intel IMVP-6
• Voltage - Input: 4.5 ~ 25 V
• Number Of Outputs: 1
• Voltage - Output: 0.0125 ~ 1.5 V
• Operating Temperature: -40°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 28-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table of Contents
Ordering Information ......................................................................................................................... 2
Pin Configuration ................................................................................................................................ 2
Pin Function Description ..................................................................................................................... 3
Block Diagram .................................................................................................................................... 4
Absolute Maximum Ratings ................................................................................................................ 6
Thermal Information .......................................................................................................................... 6
Recommended Operating Conditions .................................................................................................. 6
Electrical Specifiactions ...................................................................................................................... 6
Gate Driver Timing Diagram ............................................................................................................... 9
Simplified Application Circuits ............................................................................................................ 9
Theory of Operation .......................................................................................................................... 11
Key Component Selection ................................................................................................................. 17
Layout Guidelines ............................................................................................................................. 22
Reference Design Bill of Materials .................................................................................................... 25
Typical Performance ......................................................................................................................... 26
Revision History ............................................................................................................................... 29
Products ........................................................................................................................................... 29
Package Outline Drawing ................................................................................................................. 30
Multiphase R3™ Modulator ............................................................................................................... 11
Diode Emulation and Period Stretching ............................................................................................... 12
Start-Up Timing .............................................................................................................................. 12
Voltage Regulation and Load Line Implementation ............................................................................... 12
Differential Sensing ......................................................................................................................... 15
CCM Switching Frequency ................................................................................................................ 15
Modes of Operation ......................................................................................................................... 15
Dynamic Operation .......................................................................................................................... 15
Protections ..................................................................................................................................... 15
Adaptive Body Diode Conduction Time Reduction ................................................................................. 16
Overshoot Reduction Function ........................................................................................................... 16
R
Inductor DCR Current-Sensing Network .............................................................................................. 17
Resistor Current-Sensing Network ..................................................................................................... 19
Overcurrent Protection ..................................................................................................................... 19
Load Line Slope .............................................................................................................................. 20
Compensator .................................................................................................................................. 20
Optional Slew Rate Compensation Circuit For 1-Tick VID Transition ........................................................ 21
BIAS
............................................................................................................................................ 17
5
ISL62884C
March 16, 2010
FN7591.0