Datasheet

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0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
I -LoadCurrent- A
LOAD
V =8V
I
V =12V
I
V =20V
I
h -Efficiency-%
TPS53114EVM-541 Test Data www.ti.com
5.4 Output Ripple Voltage Measurement Procedure
1. Follow Section 5.3 Steps 1-4 to set VIN and LOAD1 to desired operating condition.
2. Connect oscilloscope probe with exposed metal barrel to TP3 and TP4 per Figure 3.
3. Set oscilloscope per Section 5.1.4.
4. Follow Section 5.3 Steps 6 and 7 to power down.
5.5 Equipment Shutdown
1. Shut down oscilloscope.
2. Shut down LOAD1.
3. Shut down VIN.
4. Shut down fan.
6 TPS53114EVM-541 Test Data
Figure 4 through Figure 7 present typical performance curves for the TPS53114EVM-541. Because actual
performance data can be affected by measurement techniques and environmental variables, these curves
are presented for reference and may differ from actual field measurements.
6.1 Efficiency
V
IN
= 8 V – 20 V, V
OUT
= 1.20 V, I
OUT
= 4 A, SW2 = 350 kHz
Figure 4. TPS53114EVM-541 Efficiency Versus Load Current
8
TPS53114EVM-541 SLVU373A–March 2010–Revised May 2012
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