Datasheet
V
SW
10 V/div
V
O
50 mV/div
V
I
= 3.3 V
V
O
= 10 V/10 mA
I
L
500 mA/div
250 ns/div
Vo1
100 mV/div
V
I
= 3.3 V
Vo1 = 10 V, C
O
= 2*22 µF
I
O
50 mA to 250 mA
100 µs/div
Vo1
200 mV/div
V
I
= 3.3 V
Vo1 = 10 V, C
O
= 22 µF
I
O
50 mA to 250 mA
100 µs/div
1.3
1.4
1.5
1.6
1.7
1.8
1.9
−40 −20 0 20 40 60 80 100
T
A
− Free-Air Temperature − °C
Switching Frequency − MHz
V
I
= 2.7 V
V
I
= 3.3 V
V
I
= 5.8 V
100
150
200
250
300
350
−40 −20 0 20 40 60 80 100
− N−Channel Main Switch − mΩ
T
A
− Free-Air Temperature − °C
Vo1 = 5 V
Vo1 = 15 V
Vo1 = 10 V
r
DS(on)
V
SW
10 V/div
V
O
50 mV/div
V
I
= 3.3 V
V
O
= 10 V/300 mA
I
L
1 A/div
250 ns/div
10
20
30
40
50
60
70
80
90
100
1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
Vo1 = 15 V
Vo1 = 10 V
V
I
= 5 V
Vo2, Vo3 = No Load, Switching
70
75
80
85
90
95
100
2.5 3 3.5 4 4.5 5 5.5 6
Vo1=6V
Vo1=15V
Vo1=10V
ILoadatVo1=100mA
Vo2,Vo3=NoLoad,Switching
V
I
-InputVoltage-V
Efficiency-%
10
20
30
40
50
60
70
80
90
100
1 10 100 1 k
Vo1 = 6 V
I
L
− Load Current − mA
Efficiency − %
Vo1 = 15 V
Vo1 = 10 V
V
I
= 3.3 V
Vo2, Vo3 = No Load, Switching
TPS65140, TPS65141
TPS65145
www.ti.com
SLVS497E –SEPTEMBER 2003–REVISED NOVEMBER 2012
TYPICAL CHARACTERISTICS
EFFICIENCY EFFICIENCY EFFICIENCY
vs vs vs
LOAD CURRENT LOAD CURRENT INPUT VOLTAGE
Figure 1. Figure 2. Figure 3.
SWITCHING FREQUENCY r
DS(on)
N-CHANNEL MAIN SWITCH
vs vs
PWM OPERATION CONTINUOUS
FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE MODE
Figure 4. Figure 5. Figure 6.
PWM OPERATION AT LIGHT LOAD LOAD TRANSIENT RESPONSE LOAD TRANSIENT RESPONSE
Figure 7. Figure 8. Figure 9.
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