TPS6594-Q1: detailed ordering information

Hello Kritika,

thank you for asking this question, naming conventions can be confusing.

The difference between all the variants lies in the non-volatile memory or NVM. The NVM is loaded on powering up on the device and thought of as the default configuration of the device.

The most basic configuration that is necessary for the PMIC to boot up is TPS65940400RWERQ. Note that the device can be configured VIA SPI or I2C after the device receives sufficient power. 

The subsequent part numbers shown as TPS65941XXX are the devices in which alphanumeric characters in the XXX fields describe aspects of the NVM.

Where the XXX denotes phase and product tracking information.

The first X denotes, the phase configuration of the first 4 of the 5 Buck regulators. Which are described below:

1. 1 Output all bucks, 1, 2, 3, & 4 are in multiphase configuration

2: 2 Outputs bucks 1, 2, & 3 are in multiphase configuration and buck 4 acts independently

3: 3 Outputs bucks 1 & 2 are in multiphase configuration, Bucks 3 & 4 act independent of each other.

4.  4 Outputs buck 1,2, 3, & 4 act independently of the other three.

5. 2 Outputs buck 1 & 2 and bucks 3 & 4 are tied together in multiphase configuration for two higher amperage outputs

NOTE: BUCK5 will always be independent no matter what configuration.

For example TPS6594133ARWERQ1 has a configuration where the first three phases (Bucks 1 & 2) are working in conjunction with one another, and Bucks 3 & 4 are independent. A solution is already provided on how to use this one is located here: Powering Jacinto 7 SoC For Isolated Power Groups With TPS6594133A-Q1 + Dual HCPS

Depending on what your customer's solution for powering SoC devices there are different NVM for each solution.

These can be found at Technical Documentation

The datasheet can be found there and here: TPS6594-Q1 Datasheet

Which goes into much more detail about all of the possibilities that the TPS6594 can be configured.

If you can't find a solution from the parts and all of the guides in the Technical Documentation section, please do write back!

Thank you,

Nicholas

Hello Kritika,

1) Yes, you are correct each variant has different NVM (boot up settings or default configuration), but programming in the NVM settings and how it is accomplished is the same for all variants, with some key differences like whether it's done via SPI or I2C.

I hope that helps, with that question, if not, please do not hesitate to write back!

2) Yes, this outlined in the datasheet. Please click the link the above post to read up on this.

3) With the part being highly customizable we would not be able to have a document that highlight every single difference between the each part number (NVM). In the above post in the technical documentation there are plenty of User Guides on which part number is needed to power up various SoC.

Best Regards,

Nicholas