Datasheet

V (10mV/div)
O
V =1.05V
O
SW(5V/div)
V =1.05V
O
V (50mV/div)
IN
SW(5V/div)
400
450
500
550
600
650
700
750
800
850
900
0 5 10 15 20
V -InputVoltage-V
IN
f -SwitchingFrequency-kHz
s
V =1.8V
O
V =1.05V
O
I =1 A
O
V =3.3V
O
400
450
500
550
600
650
700
750
800
850
900
0 0.5 1 1.5 2 2.5 3
I -OutputCurrent- A
O
f -SwitchingFrequency-kHz
s
V =3.3V
O
V =1.8V
O
V =1.05V
O
EN(10V/div)
VREG5(5V/div)
1ms/div)
Vout(0.5V/div)
40
50
60
70
80
90
100
0.0 0.5 1.0 1.5 2.0 2.5 3.0
V = 1.8 V
OUT
V = 2.5 V
OUT
V = 3.3 V
OUT
I - Output Current - A
OUT
Efficiency - %
TPS54327
SLVSAG1B –DECEMBER 2010–REVISED JUNE 2013 www.ti.com
TYPICAL CHARACTERISTICS (continued)
VIN = 12 V, T
A
= 25°C (unless otherwise noted)
spacer
Figure 7. START-UP WAVE FORM Figure 8. EFFICIENCY vs OUTPUT CURRENT
Figure 9. SWITCHING FREQUENCY vs INPUT VOLTAGE Figure 10. SWITCHING FREQUENCY vs OUTPUT CURRENT
Figure 11. VOLTAGE RIPPLE AT OUTPUT (I
O
= 3 A) Figure 12. VOLTAGE RIPPLE AT INPUT (I
O
= 3 A)
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