Datasheet
78
90
94
74
70
82
86
0
Efficiency (%)
98
2 4 6 8 10 12
Output Current (A)
V
IN
= 12 V
FCCM
f
SW
= 300 kHz
1.0
1.1
1.2
1.5
1.8
3.3
5.0
V
OUT
(V)
78
90
94
74
70
82
86
0
Efficiency (%)
98
2 4 6 8 10 12
Output Current (A)
V
IN
= 12 V
Skip Mode
f
SW
= 300 kHz
1.0
1.1
1.2
1.5
1.8
3.3
5.0
V
OUT
(V)
78
90
94
74
70
82
86
0
Efficiency (%)
98
2 4 6 8 10 12
Output Current (A)
1.0
1.1
1.2
1.5
1.8
3.3
5.0
V
OUT
(V)
V
IN
= 12 V
FCCM
f
SW
= 500 kHz
78
90
94
74
70
82
86
0
Efficiency (%)
98
2 4 6 8 10 12
Output Current (A)
V
OUT
(V)
1.0
1.1
1.2
1.5
1.8
3.3
5.0
V
IN
= 12 V
Skip Mode
f
SW
= 500 kHz
78
90
94
74
70
82
86
0
Efficiency (%)
98
2 4 6 8 10 12
Output Current (A)
V
IN
= 5 V
FCCM
f
SW
= 500 kHz
V
OUT
(V)
1.0
1.1
1.2
1.5
1.8
3.3
78
90
94
74
70
82
86
0
Efficiency (%)
98
2 4 6 8 10 12
Output Current (A)
V
IN
= 5 V
Skip Mode
f
SW
= 500 kHz
V
OUT
(V)
1.0
1.1
1.2
1.5
1.8
3.3
TPS53315
www.ti.com
SLUSAE6 –DECEMBER 2010
TYPICAL CHARACTERISTICS
Inductor Values
IN06155: 1 µH, 2.3 mΩ, HCB1175-501: 0.5 µH, 0.29 mΩ
Figure 13. Efficiency vs Output Current, Figure 14. Efficiency vs Output Current,
Inductors: V
OUT
≤ 1.8 V: HCB1175-501, V
OUT
≥ 3.3 V: Inductors: V
OUT
≤ 1.8 V: HCB1175-501, V
OUT
≥ 3.3 V:
IN06155 IN06155
Figure 15. Efficiency vs Output Current, Figure 16. Efficiency vs Output Current,
Inductors: V
OUT
≤ 1.8 V: HCB1175-501, V
OUT
≥ 3.3 V: Inductors: V
OUT
≤ 1.8 V: HCB1175-501, V
OUT
≥ 3.3 V:
IN06155 IN06155
Figure 17. Efficiency vs Output Current, Figure 18. Efficiency vs Output Current,
Inductor: HCB1175-501 Inductor: HCB1175-501
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