Datasheet

JP1

active

JP1

shorted

JP2

enabled

JP2

disabled

Setup

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SW2EN – Used to control Switched Regulator 2 on the TPS43331. The switch can be moved at any time

after power has been applied to the EVM.

Table 4. Switched Regulator 2 Switch Setting

Switcher 2 SW2EN

Disabled Position 1

Enabled Position 2

VLREN – Used to control the switched linear regulator on the TPS43331. The switch can be moved at any

time after power has been applied to the EVM.

Table 5. Switched Linear Regulator Switch Setting

Switched Linear VLREN

Disabled Position 1

Enabled Position 2

HSDEN – Used to control the high-side switch on the TPS43331. The switch can be moved at any time

after power has been applied to the EVM.

Table 6. High-Side Driver Switch Setting

High-Side Driver HSDEN

Disabled Position 1

Enabled Position 2

JP1 – Zener Bypass is the jumper used to bypass the reverse battery protection diode.

Figure 2. Reverse Battery Protection Diode Bypass Jumper Settings

JP2 – MSP430 Power is the jumper used to enable the power supply to the MSP430. Power must be

enabled to the MSP430 to control the TPS43331. The MSP430 can be disabled and maintain the state of

the its outputs for EMC testing using the procedure listed under the SYNCH jumper settings, but power

must be supplied to the MSP430.

Figure 3. MSP430 Regulator Jumper Settings

TPS43331EVM SLVU349–October 2009

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