ISL6310

Features:

* Integrated Multi-Phase Power Conversion
- 1 or 2 Phase Operation
* Precision Output Voltage Regulation
- Differential Remote Voltage Sensing
- ±0.8% System Accuracy Over Temperature (for REF=0.6V and 0.9V)
- ±0.5% System Accuracy Over Temperature (for REF=1.2V and 1.5V)
- Usable for output voltages not exceeding 2.3V
- Adjustable Reference-Voltage Offset
* Precision Channel Current Sharing
- Uses Loss-Less r Current Sampling DS(ON)
* Optional Load Line (Droop) Programming
- Uses Loss-Less Inductor DCR Current Sampling
* Variable Gate-Drive Bias - 5V to 12V
* Internal or External Reference Voltage Setting
- On-Chip Adjustable Fixed DAC Reference voltage with 2-bit Logic Input Selects from Four Fixed Reference Voltages (0.6V, 0.9V, 1.2V, 1.5V)
- Reference can be Changed Dynamically
- Can use an External Voltage Reference
* Overcurrent Protection
* Multi-tiered Overvoltage Protection
- OVP Pin to Drive Optional Crowbar Device
* Selectable Operation Frequency up to 1.5MHz per phase
* Digital Soft-Start
* Capable of Start-up in a Pre-Biased Load
* Pb-Free Plus Anneal Available (RoHS Compliant)




Application

* High Current DDR/Chipset core voltage regulators
* High Current, Low voltage DC/DC converters
* High Current, Low voltage FPGA/ASIC DC/DC converters




Pinout






Specifications

Supply Voltage, VCC. . . . . . . . . . . . . . ............ . . . . . . . . . . . .-0.3V to +6V
Supply Voltage, PVCC. . . . . . . . . . . ............ . . . . . . . . . . . . .-0.3V to +15V
Absolute Boot Voltage, V_BOOT . . .............. . . . . .GND - 0.3V to GND + 36V
Phase Voltage, V_PHASE . . ............... . . . . . GND - 0.3V to 15V (PVCC = 12)
GND - 8V (<400ns, 20J) to 24V (<200ns, V_BOOT-PHASE = 12V)
Upper Gate Voltage, V_UGATE . ............. . .V_{PHASE BOOT} - 0.3V to V + 0.3V
V_{PHASE BOOT} - 3.5V (<100ns Pulse Width, 2J) to V + 0.3V
Lower Gate Voltage, V_LGATE . . . . .............. . . . GND - 0.3V to PVCC + 0.3V
GND - 5V (<100ns Pulse Width, 2J) to PVCC+ 0.3V
Input, Output, or I/O Voltage . . ............ . . . . . . GND - 0.3V to VCC + 0.3V
ESD Classification. . . . . . . . . . . . . . . . . . . ............... . . .Class I JEDEC STD




Description

The ISL6310 is a two-phase PWM control IC with integrated MOSFET drivers. It provides a precision voltage regulation system for multiple applications including, but not limited to, high current low voltage point-of-load converters, embedded applications and other general purpose low voltage medium to high current applications. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multi-phase product families. By reducing the number of external parts, this integration allows for a cost and space saving power management solution.