TPS53314 Datasheet, PDF (9/31 Pages) Texas Instruments – 6-A Step-Down Regulator with Integrated Switcher

TPS53314
www.ti.com
SLUSAK3 – MAY 2011
TYPICAL CHARACTERISTICS
700
6
600
500
400
300
200
100
0
−40 −25 −10 5
V_EN = 5 V
V_VDD = 12 V
V_VFB = 0.63 V
No Load
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 1. VDD Supply Current vs. Temperature
5
4
3
2
1
0
−40 −25 −10 5
V_EN = 0 V
V_VDD = 12 V
No Load
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 2. VDD Shutdown Current vs. Temperature
140
120
100
80
60
40
20
0
−40 −25 −10 5
OVP
UVP
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 3. OVP/UVP Trip Threshold vs. Temperature
16
15
14
13
12
11
10
9
8
7
6
−40 −25 −10 5
V_VDD = 12 V
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 4. Trip Pin Current vs. Temperature
1000
1000
100
f_SET = 300 kHz
10
V_IN = 12 V
V_OUT = 1.1 V
1
0.01
0.1
1
Output Current (µA)
FCCM
Skip Mode
6
Figure 5. Frequency vs. Temperature (f_SET = 300 kHz)
100
f_SET = 500 kHz
10
V_IN = 12 V
V_OUT = 1.1 V
1
0.01
0.1
1
Output Current (A)
FCCM
Skip Mode
6
Figure 6. Frequency vs. Temperature (f_SET = 500 kHz)
Copyright © 2011, Texas Instruments Incorporated
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