Datasheet

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2.1.4 J4 –VIN Converter 2

2.1.5 J5 – GND Converter 2

2.1.6 J6 – I

C™ Input Converter 2

2.1.7 J7 – VOUT Converter 1

2.1.8 J8 – GND Converter 1

2.1.9 J9 –VOUT Converter 2

2.1.10 J10 – GND Converter 2

2.1.11 J11 – SYNC INPUT Converter 2

2.1.12 JP1 –SDA Converter 1

2.1.13 JP2 – SDA Converter 2

Setup

This is the positive input supply voltage to converter 2. The leads to the input supply should be twisted,

and kept as short as possible to minimize EMI transmission.

This is the return connection for the input power supply of converter 2.

This connector is the I

C™ input for converter 2.

This is the positive connection for the output of converter 1. Connect this pin to the positive input of the

load.

This is the return connection for the output of converter 1.

This is the positive connection for the output of converter 2. Connect this pin to the positive input of the

load.

This is the return connection for the output of converter 2.

This connector is used to synchronize the switching of the TPS62351 to an external clock source. Pin 1 of

J4 connects to the SYNC pin of the TPS62351 on converter 2. Pin 2 of J4 is connected to the ground of

the TPS62351 on converter 2. The SYNC input has a 1-m Ω pull-down resistor installed on the EVM board.

This jumper is used to tie the I

C™ SDA pin of the TPS62351 to either a 10-k Ω pull-up resistor to the

input voltage or to short the SDA pin to ground. The shunt can be removed if the I

C™ master has its own

pull up or operates from a voltage that is different than the input voltage of the TPS62351. The Texas

Instruments USB Interface Adapter provides an active pull up so no jumper should be installed when using

the adapter supplied with the EVM.