ADP3159/ADP3179 are highly efficient 4-bit programmable synchronous buck controllers with optimized load transient response and compliance with VRM 8.4 specifications. They also feature 1.3V to 2.05V output, two on-board linear regulator controllers, and high-efficiency current-mode operation.
The Analog Devices ADP3159 and ADP3179 are highly efficient output synchronous buck switching regulator controllers optimized for converting a 5 V main supply into the core supply voltage required by high-performance processors. These devices use an internal 4-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 1.3 V and 2.05 V.
The controllers utilize a unique supplemental regulation technique called Analog Devices Optimal Positioning Technology (ADOPT) to enhance load transient performance. Additionally, they include two on-board linear regulator controllers: fixed outputs at 2.5 V and 1.8 V for the ADP3159, and an adjustable output for the ADP3179.
| Output Voltage Range | 1.3 V to 2.05 V |
|---|---|
| Operating Temperature Range | 0°C to 70°C |
| Package Type | 20-lead TSSOP |
| Output Accuracy | +0.8% Over Temperature |
| Supply Voltage Range | -0.3 V to +15 V |
The devices are programmable to set the output voltage between 1.3 V and 2.05 V.
The devices use Analog Devices Optimal Positioning Technology (ADOPT) to adjust the output voltage as a function of load current.
The ADP3159 provides two fixed-output voltage linear regulators at 2.5 V and 1.8 V.