Datasheet

www.ti.com Bench Test Setup Conditions
5.1 Headers Description
Header
Function LOC Placement Comment
Number
For immediate start-up fit jumper to V3V
JP11 BUCK1 enable (EN1) SW For sequencing do not fit jumper Fit according to test requirement
To disable converter fit jumper to GND
For immediate start-up fit jumper to V3V
JP20 BUCK2 enable (EN2) SW For sequencing do not fit jumper Fit according to test requirement
To disable converter fit jumper to GND
For immediate start-up fit jumper to V3V
JP3 BUCK3 enable (EN3) SW For sequencing do not fit jumper Fit according to test requirement
To disable converter fit jumper to GND
For forced PWM operation fit jumper to Do not leave this header open.
V3V Use a jumper to set either
JP25 Forced PWM (F_PWM) S
For automatic PFM/PWM operation fit forced PWM mode or automatic
jumper to GND PFM/PWM mode
JP26 Test S Used for test purposes Jumper must be fitted
JP27 PGOOD S PGOOD indicated pulled to 3V3 Fit according to test requirement
5.2 Test Points and Placement
Buck converter outputs are white and have a label for easy location. Close to any of these test points
there are black ground test points to allow for DVM measurement or to use a metal exposed scope probe
to reduce common mode noise measurements. All test points are described in the following table:
Test Point Name Signal COLOR Comment
TP1 GND GND Black
TP2 GND GND Black
TP3 GND GND Black
TP4 Vin Vin Black
TP5 GND GND Black
TP6 GND GND Black
TP7 GND GND Black
TP14 Vout1 Output voltage Buck1 Not fitted
Injection Point gain-phase measurement Normally not
TP14a Not fitted
buck1 used
TP17 Vout1 Output voltage Buck2 Not fitted
Injection Point gain-phase measurement Normally not
TP17a Not fitted
buck2 used
TP37 Vout1 Output voltage Buck3 Not fitted
Injection Point gain-phase measurement Normally not
TP37a Not fitted
buck3 used
7
SLVU570– September 2011 TPS652510 High Current, Synchronous Step Down Three Buck Switcher
Evaluation Module
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