Datasheet

95
90
85
80
75
70
65
60
h - Efficiency - %
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
I - Load Current - A
LOAD
(a) F = 350 kHz
SW
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
I - Load Current - A
LOAD
95
90
85
80
75
70
65
60
h - Efficiency - %
V = 8 V
IN
V = 12 V
IN
V = 22 V
IN
V = 8 V
IN
V = 12 V
IN
V = 22 V
IN
(a) F = 700 kHz
SW
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
I - Load Current - A
LOAD
1.07
1.065
1.06
1.055
1.05
1.045
1.04
1.035
1.03
V - Output Voltage - V
OUT
1.07
1.065
1.06
1.055
1.05
1.045
1.04
1.035
1.03
V - Output Voltage - V
OUT
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
I - Load Current - A
LOAD
V = 8 V
IN
V = 12 V
IN
V = 22 V
IN
V = 12 V
IN
V = 8 V
IN
V = 22 V
IN
(a) F = 350 kHz
SW
(a) F = 700 kHz
SW
www.ti.com Performance Data and Typical Characteristic Curves
Figure 5. Efficiency vs Load (V
IN
= 8 V–22 V, V
OUT2
= 1.8 V, I
OUT2
= 0 A–4 A)
7.2 Line and Load Regulation
Figure 6. Output Voltage vs Load (V
IN
= 8 V–22 V, V
OUT1
= 1.05 V, I
OUT1
= 0 A–4 A)
11
SLVU435–February 2011 TPS53126EVM-600
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