View source for OpenVReg

{{Short description|Power supply specification}}
{{Multiple issues|
{{Orphan|date=June 2023}}
{{more citations needed|date=June 2023}}
}}
'''OpenVReg''' (short for '''Open Voltage Regulator''') is a [[Nvidia]] power supply specification. It is an industrial first attempt to standardize both the [[Chip carrier|package]] and [[pinout]] for low voltage DC-DC switching regulators.<ref name=":0">{{Cite web |title=OpenVReg - Open Voltage Regulator {{!}} NVIDIA |url=https://www.nvidia.com/en-us/drivers/openvreg/ |access-date=2023-05-21 |website=www.nvidia.com}}</ref>
The goal of OpenVReg is to enable [[Integrated circuit packaging|packaging]] and [[pinout]] compatibility across multiple sources of similar devices with a single common [[Printed circuit board|PCB]] footprint and layout. OpenVReg defines the basic operation, the minimum set of features, the electrical interface and the mechanical requirements necessary to implement compliant devices.
OpenVReg compliant devices have:
* Non-conflicting [[pinout]] definitions: additional features are allowed but do not conflict with the base feature set.
* Circuit compatibility: devices function within the predefined [[reference circuit]].
* Common layout: devices are [[Pin-compatibility|footprint]] compatible.
* Mechanically compatible [[IC package|package]]: devices do not exceed the volume defined in the mechanical specification.
The current OpenVreg development focuses exclusively on [[DC-DC]] [[Voltage regulator|regulators]] and controllers. Future version may add definition for other types of devices. The current three OpenVReg regulator types are Type 0, Type 2 and Type2+1.{{citation needed|date=May 2023}}
== Types ==
{{Small|''Sources''}}<ref name=":0" /><ref>{{Cite web |title=RICHTEK |url=https://www.richtek.com/assets/product_file/RT5771A/DS5771A-02.pdf}}</ref>
===Type 0===
OpenVReg Type 0 is a step down [[DC-DC converter]] with integrated power stage.
Type 0 defines three subtypes targeting different applications:
{| class="wikitable"
! Type0 SubType || Input voltage (V)<ref>{{Cite web |title=TPS51313 data sheet, product information and support {{!}} TI.com |url=https://www.ti.com/product/TPS51313 |access-date=2023-05-21 |website=www.ti.com}}</ref>|| Application ||note
|-
| Type 0-LV || 1.2 ~5.5  ||Secondary converters in two stage architectures and [[Mobile device|battery operated devices]] ||fixed input
|-
| Type 0-DT || 12&nbsp;V || Generic [[Desktop computer|desktop]] and [[consumer electronics]] || fixed input
|-
| Type 0-BT  || 7–20&nbsp;V || Battery operated devices with 3 or more cells battery packs || dynamic input
|}
Note: Regulators must be stable with either [[polymer capacitor]] or MLCC ([[Multi-layer ceramic capacitor]]) input and output [[capacitor]].
===Type 2===
OpenVReg Type 2 is a dual phase DC-DC controller. Type 2 defines two subtypes targeting different applications:
{| class="wikitable"
! Type0 SubType || Input voltage (V)|| Application ||note
|-
| Type 2-DT || 12&nbsp;V || Generic [[Desktop computer|desktop]] and [[consumer electronics]] || fixed input
|-
| Type 2-BT  || 7–20&nbsp;V || Battery operated devices with 3 or more cells battery packs || dynamic input
|}
===Type 2+1===
OpenVReg Type 2+1 is a multi-phase [[Pulse-width modulation|PWM]] [[Buck converter|buck switching regulator]] controller with two integrated gate drivers and an external gate driver to provide the third phase PWM signal output. OpenVReg Type 2+1 is programmable for 1-, 2-, or 3-phase operation.  Two subtypes are defined targeting different applications:
{| class="wikitable"
! Type0 SubType || Input voltage (V)|| Application ||note
|-
| Type 2+1-DT || 12&nbsp;V || Generic [[Desktop computer|desktop]] and [[consumer electronics]]  || fixed input
|-
| Type 2+1-BT  || 7–20&nbsp;V || Battery operated devices with 3 or more cells battery packs || dynamic input
|}
==References==
{{Reflist|2}}
==External links==
*[http://www.nvidia.com/object/openvreg OpenVReg - Open Voltage Regulator] ''www.nvidia.com''
[[Category:Electrical power control]]
[[Category:Nvidia]]
[[Category:Open standards]]