TPS65094: LPDDR4

Kai Hsiao

Guru 12675 points

Part Number: TPS65094

Hi Sir

When I design TPS650940 for APL LPDDR4

Have anything I need to take care ?

Beside VTT pin can be floated and PVINVTT and VTTFB shorted to GND

Thanks

over 7 years ago

0 Kevin LaRosa over 7 years ago

TI__Genius 17380 points

Hi Kenny,

Those are the only differences between a TPS650941 design and a TPS650940 design. If porting from a TPS650942 design, then SWB1_2 needs to be connected to the LPDDR4 (in 942 it could be used for non-DDR).

0 Kai Hsiao over 7 years ago in reply to Kevin LaRosa

Guru 12675 points

HI Kevin

If I follow TPS650942's reference design

You mean below both of +V1P8_PMIC and +V1P8U_PMIC need to connect with +V1.8U_MEM at the same time ? Is it correct?

0 Kevin LaRosa over 7 years ago in reply to Kai Hsiao

TI__Genius 17380 points

Hi Kenny,

You are correct. SWB1 and SWB2 are expected to be shorted together at their output and then connected to V1P8U which is used as VDD1 input for LPDDR4.

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TPS65094: LPDDR4