ADP3293:VR11.1 8-Bit, Programmable 2- to 3-Phase Synchronous Buck Controller
The ADP3293 is a highly efficient, multi-phase, synchronous buck switching regulator controller optimized for converting a 12 V main supply voltage into the core supply voltage of high performance Intel processors. It uses an internal 8-bit DAC to read a voltage identification (VID) code directly from the processor, to set the output voltage between 0.5 V and 1.6 V. This device uses a multi-mode control architecture to drive the logic-level PWM outputs. The switching frequency can be programmed according to VR size and efficiency. The chip can provide 2- or 3-phase operation, allowing for the construction of up to four complementary buck switching stages. The ADP3293 also includes programmable no load offset and load line slope setting function that adjusts the output voltage as a function of the load current, optimally positioning it for a system transient. The ADP3293 also provides accurate and reliable short-circuit protection, adjustable current limit, and a delayed power-good output that accommodates on-the-fly output voltage changes requested by the CPU.
技术特性
- Selectable 2-,or 3-Phase operation at up to 1MHz
- Flexibility for wide range applications
- +/-7mV worse-case differential sensing error
- High precision and accuracy error amplifier
- Logic-level PWM outputs for interface to external high power drivers
- Flexbility to use different gate drivers
- Fast-Enhanced PWM Flexmode
- Excellent load transient performance
- TRDET function
- Load release improvement
- Active current balancing
- Very good load sharing between all phases
- Build-in Power-Good/Crowbar blanking
- Supporting dynamic VID code changes
- Digitally programmable 0.5V to 1.6V output
- Supporting VR11.1 specification
- Programmable Over-Current protection with programmable latch-off delay
- Flexbility
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应用
- Intel Desktop/Server PC power supply
- VRM module
终端产品
- Desktop/server processor
- GPU
封装图 PACKAGE DIMENSIONS
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| ADP3293JCPZ-RL |
Active |
|
VR11.1 8-Bit, Programmable 2- to 3-Phase Synchronous Buck Controller |
LFCSP-40 |
932AC |
3 |
Tape and Reel |
2500 |
$0.8533 |
数据资料DataSheet下载
