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Part Number: ADP3166*
Description: The ADP3166 is a highly efficient, multiphase, synchronous buck switching regulator controller optimiz...
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ADP3166*
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DataSheet
General Description
ADP3166* General Description
The ADP3166 is a highly efficient, multiphase, synchronous buck switching regulator controller optimized for converting a 12 V main supply into the core supply voltage required by high performance AMD processors. It uses an internal 5-bit DAC to read a voltage identification (VID) code directly from the pro-
cessor, which is used to set the output voltage between 0.8 V and 1.55 V. The ADP3166 also uses a multimode PWM architecture to drive the logic-level outputs at a programmable switching frequency that can be optimized for VRM size and efficiency. The phase relationship of the output signals can be programmed to provide 2-, 3-, or 4-phase operation, allowing for the construction of up to four complementary buck switching stages.
The ADP3166 includes programmable no-load offset and slope functions to adjust the output voltage as a function of the load current so that it is always optimally positioned for a system transient. The ADP3166 also provides accurate and reliable short-circuit protection, adjustable current limiting, and a delayed power good output that accommodates on-the-fly output voltage changes requested by the CPU. ADP3166 is specified over the commercial temperature range of 0°C to 85°C and is available in a 28-lead TSSOP package.
ADP3166* Maximum Ratings
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +15 V
FBRTN . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +0.3 V
VID0 to VID4, EN, DELAY, ILIMIT, CSCOMP, RT, COMP,
CROWBAR, PWM1 to PWM4 . . . . . . . . . 0.3 V to +5.5 V
SW1 to SW4 . . . . . . . . . . . . . . . . . . . . . . . . . .5 V to +25 V
All Other Inputs and Outputs . . . . . . 0.3 V to VCC + 0.3 V
Operating Ambient Temperature Range . . . . . 0°C to 85°C
Operating Junction Temperature . . . . . . . . . . . . . . . 125°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . .. . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
FBRTN . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +0.3 V
VID0 to VID4, EN, DELAY, ILIMIT, CSCOMP, RT, COMP,
CROWBAR, PWM1 to PWM4 . . . . . . . . . 0.3 V to +5.5 V
SW1 to SW4 . . . . . . . . . . . . . . . . . . . . . . . . . .5 V to +25 V
All Other Inputs and Outputs . . . . . . 0.3 V to VCC + 0.3 V
Operating Ambient Temperature Range . . . . . 0°C to 85°C
Operating Junction Temperature . . . . . . . . . . . . . . . 125°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . .. . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
ADP3166* Features
Selectable 2-, 3- or 4-Phase Operation at up to1 MHz per Phase
Differential Sensing Error ±1% over Temperature
Logic-Level PWM Outputs for Interface to External High Power Drivers
Active Current Balancing between All Output Phases
Built-in Power Good Blanking Supports On-the-Fly VID Code Changes
5-Bit Digitally Programmable 0.8 V to 1.55 V Output
Short-Circuit Protection with Programmable Latch-Off Delay
Overvoltage Protection Crowbar Logic Output
Differential Sensing Error ±1% over Temperature
Logic-Level PWM Outputs for Interface to External High Power Drivers
Active Current Balancing between All Output Phases
Built-in Power Good Blanking Supports On-the-Fly VID Code Changes
5-Bit Digitally Programmable 0.8 V to 1.55 V Output
Short-Circuit Protection with Programmable Latch-Off Delay
Overvoltage Protection Crowbar Logic Output
ADP3166* Typical Application
Desktop PC Power Supplies
Next-Generation AMD Processors
VRM Modules
Next-Generation AMD Processors
VRM Modules
ADP3166* Connection Diagram
ADP1
PDF/DataSheet Download
- Datasheet: ADP1
- File Size: 73864 KB
- Manufacturer: ETC [ETC]
- Click here to Download
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