Datasheet

0
100
200
300
400
500
600
700
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
VDD Supply Current (µA)
V
EN
= 5 V
V
VDD
= 12 V
V
VFB
= 0.63 V
No Load
0
1
2
3
4
5
6
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
VDD Shutdown Current (µA)
V
EN
= 0 V
V
VDD
= 12 V
No Load
0
20
40
60
80
100
120
140
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
OVP/UVP Trip Threshold (%)
OVP
UVP
6
7
8
9
10
11
12
13
14
15
16
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
TRIP Pin Current (µA)
V
VDD
= 12 V
1
10
100
1000
0.01 0.1 1 10 100
Output Current (µA)
Switching Frequency (kHz)
FCCM
Skip Mode
f
SET
= 300 kHz
V
IN
= 12 V
V
OUT
= 1.1 V
1
10
100
1000
0.01 0.1 1 10 100
Output Current (A)
Switching Frequency (kHz)
FCCM
Skip Mode
f
SET
= 500 kHz
V
IN
= 12 V
V
OUT
= 1.1 V
TPS53315
www.ti.com SLUSAE6 –DECEMBER 2010
TYPICAL CHARACTERISTICS
Figure 1. VDD Supply Current vs. Temperature Figure 2. VDD Shutdown Current vs. Temperature
Figure 3. OVP/UVP Trip Threshold vs. Temperature Figure 4. Trip Pin Current vs. Temperature
Figure 5. Frequency vs. Temperature (f
SET
= 300 kHz) Figure 6. Frequency vs. Temperature (f
SET
= 500 kHz)
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