Datasheet

0.75
0.755
0.76
0.765
0.77
0.775
0.78
-50 0 50 100 150
T - Junction Temperature C
J
- °
V - Vfb Voltage - V
FBTH
0
100
200
300
400
500
600
700
800
0.01 0.1 1 10
fsw - Switching Frequency - kHz
I - Output Current - A
O
V = 3.3 V
O
V = 1.8 V
O
V = 1.05 V
O
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1
Efficiency - %
I - Output Current - A
O
V = 3.3 V
O
V = 2.5 V
O
V = 1.8 V
O
V = 3.3 V
O
V = 2.5 V
O
V = 1.8 V
O
V = 1.05 V
O
V = 1.2 V
O
V = 1.5 V
O
400
450
500
550
600
650
700
750
800
850
900
fsw - Switching Frequency - kHz
0 5 10 15 20
V - Input Voltage - V
I
V = 5 V
O
1.04
1.05
1.06
1.07
1.08
V - Output Voltage - V
O
0 5 10 15 20
V - Input Voltage - V
I
I = 1 A
O
I = 10 mA
O
V = 3.3 V
O
V = 2.5 V
O
V = 1.8 V
O
40
50
60
70
80
90
100
Efficiency - %
0 1 2 3 4 5
I - Output Current - A
O
TPS54528
www.ti.com SLVSAY4C –JULY 2011–REVISED MARCH 2014
Typical Characteristics (continued)
VIN = 12 V, T
A
= 25°C (unless otherwise noted).
Figure 5. 1.05-V Output Voltage vs Input Voltage Figure 6. Efficiency vs Output Current
I
O
= 1 A
Figure 8. Switching Frequency vs Input Voltage
Figure 7. LIght Load Efficiency vs Output Current
V
I
= 12 V
Figure 9. Switching Frequency vs Output Current
Figure 10. VFB Voltage vs Junction Temperature
Copyright © 2011–2014, Texas Instruments Incorporated 7
Product Folder Links: TPS54528