Datasheet

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Test Procedure

7.3 List of Test Points

Table 4. The Functions of Each Test Points

TEST POINTS NAME DESCRIPTION

TP1 CHA Input A for Loop Injection

TP2 CHB Input B for Loop Injection

TP3 VREG3 3.3-V Internal LDO Output

TP4 GND GND

TP5 GND GND

TP6 VIN Input Voltage

TP7 VOUT Output Voltage

TP8 SW Switching Node

TP9 GND GND

TP10 GND GND

TP11 EN Enable Pin

TP12 PGD Power Good Output

7.4 Equipment Shutdown

1. Shut down VIN.

2. Shut down Load.

3. Shut down FAN.

SLUU671–December 2011 5-A Step-Down Regulator with Integrated Switcher

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