Datasheet

TPS54110−Q1
SLVS837 − JULY 2008
www.ti.com
13
PERFORMANCE GRAPHS
All performance data shown for V
I
= 5 V, V
O
= 3.3 V, f
s
= 700 kHz, T
A
= 25°C, Figure 9
Figure 11
50
55
60
65
70
75
80
85
90
95
100
0 0.25 0.5 0.75 1 1.25 1.5
I
O
− Output Current − A
Efficiency − %
EFFICIENCY
vs
OUTPUT CURRENT
Figure 12
0
0.2
0.4
0.6
0.8
1
1.2
0 0.25 0.5 0.75 1 1.25 1.5
POWER DISSIPATION
vs
OUTPUT CURRENT
− Power Dissipation − W
P
D
I
O
− Output Current − A
Figure 13
−0.05
−0.04
−0.03
−0.02
−0.01
0
0.01
0.02
0.03
0.04
0.05
0 0.25 0.5 0.75 1 1.25 1.5
Output Voltage Varistion − %
LOAD REGULATION
vs
OUTPUT CURRENT
I
O
− Output Current − A
Figure 14
−0.02
−0.015
−0.01
−0.005
0
0.005
0.01
0.015
0.02
4.5 4.75 5 5.25 5.5
V
I
− Input Voltage − V
LINE REGULATION
vs
INPUT VOLTAGE
Output Voltage Varistion − %
I
O
= 1.5 A
I
O
= 0.75 A
I
O
= 0 A
Figure 15
V
I
= 50 mV/div (AC)
V
(phase)
= 2 V/div
Time = 500 ns/div
INPUT VOLTAGE RIPPLE
Figure 16
V
O
= 10 mV/div (AC)
V
(phase)
= 2 V/div
Time = 500 ns/div
OUTPUT VOLTAGE RIPPLE
Figure 17
V
O
= 10 mV/div (AC)
I
O
= 1 V/div
Time = 200 ms/div
OUTPUT VOLTAGE TRANSIENT
RESPONSE
Figure 18
V
I
= 2 V/div
V
O
= 1 V/div
Time = 5 ms/div
START UP WAVEFORM
Figure 19
−40
−30
−20
−10
10
20
30
40
50
60
100 1 k 10 k 100 k 1 M
−180
−150
−120
−90
−60
−30
0
30
60
90
120
150
180
Gain
Phase
f − Frequency − Hz
0
−50
Gain − dB
MEASURED LOOP RESPONSE
−60
Phase − Degrees