Datasheet

4.5 Test Points
4.6 Equipment Shutdown
Test Setup www.ti.com
Several test points are located around the board. Table 3 lists these various test points and the respective
uses of each.
Table 3. Test Points
TEST POINT LABEL DESCRIPTION
VIN Input voltage positive sense point
GND_VIN Input voltage negative sense point
VIN5 5-V input voltage for switch over
VIN3.3 3.3-V input voltage for switch over
5V_OUT 5-V LDO output positive sense point
GND_5V 5-V LDO output negative sense point
3.3V_OUT 3.3-V LDO output positive sense point
GND_3.3V 3.3-V LDO output negative sense point
15V_OUT Charge pump output positive sense point
3.3V_RTC 3.3-V LDO output for real time clock
CLOCK 250-kHz clock for charge pump
Follow these procedures to properly shut down the EVM.
Step 1. Shut down LOAD.
Step 2. Shut down all input voltage sources.
Step 3. Restore the default positions of all switches.
Using the TPS51103EVM Integrated 3.3-V/5-V Power LDO with Clock Output8 SLUU303A – JUNE 2008 – Revised SEPTEMBER 2008
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