SLUU420A
May 2010 – February 2022
TPS51217
Trademarks
1
Description
1.1
Typical Applications
1.2
Features
2
Electrical Performance Specifications
3
Schematic
4
Test Setup
4.1
Test Equipment
4.1.1
Voltage Source
4.1.2
Multimeters
4.1.3
Pulse Generator
4.1.4
Output Load
4.1.5
Oscilloscope
4.1.6
Fan
4.1.7
Recommended Wire Gauge
4.2
Recommended Test Setup
4.2.1
Input Connections
4.2.2
Output Connections
4.2.3
Other Connections
4.3
List of Test Points
5
Test Procedure
5.1
Line/Load Regulation and Efficiency Measurement Procedure
5.2
Dynamic Output Voltage Transition Measurement Procedure
5.3
Equipment Shutdown
6
Performance and Typical Characteristic Curves
6.1
Efficiency
6.2
Load Regulation
6.3
Line Regulation
6.4
Transient Response
6.5
Output Ripple
6.6
Switch-Node Voltage
6.7
Start and Stop
6.8
Dymamic Output Voltage Transitions
7
EVM Assembly Drawing and PCB Layouts
8
List of Materials
9
References
10
Revision History
5.2
Dynamic Output Voltage Transition Measurement Procedure
Follow steps 1 to 5 of
Section 5.1
.
Ensure pulse configuration is return-to-zero (RZ) with 50% duty ratio.
Run the pulse generator. V
OUT
steps down from 1.2 V to 0.9 V as shown in
Figure 6-14
.
Stop the pulse generator. Change the configuration as inverted.
Run the pulse generator again. V
OUT
steps up from 0.9 V to 1.2 V as shown in
Figure 6-15
.
Stop the pulse generator.
Follow steps 11 to 13 of
Section 5.1
.