Datasheet

JP3

VOUT1

selected

VIN

selected

VO1

VIN

VO1

VIN

JP3

VIN2

VIN selected VOUT1 selected

VIN

VOUT1

VIN2

VIN

VOUT1

JP5

external supply

JP5

VOUT1

ROSC

240 KHz

ROSC ROSC

400 KHz 600 KHz

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Setup

JP3 – VINLR1 is the jumper used to select the power supply source for the linear regulator. The jumper

selects the output of the switch-mode regulator 1 or the protected battery input (VIN). The user can leave

the jumper open and use an external supply via the VINLR1 test point.

Figure 3. VINLR1 Jumper Setting

JP4 – VIN2 is the jumper used to select the power supply source for the switch-mode regulator 2. The

jumper selects the output of the switch-mode regulator 1 or the protected battery input (VIN).

Figure 4. VIN2 Jumper Setting

JP5 – VSUP is the jumper used to select the power supply source for the switch-mode regulator 3. The

jumper selects the output of the switch-mode regulator 1 or the VSUP input (J6).

Figure 5. VSUP Jumper Setting

JP6 – ROSC is the jumper used to select the operating switching frequency for the switch-mode

regulators. The jumper places a pulldown resistor in the circuit to set the frequency to approximately 240

kHz, 400 kHz, or 600 kHz.

Figure 6. ROSC Jumper Settings

SLVU463–July 2011 TPS4334xEVM Evaluation Module

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