Datasheet
475
480
485
490
495
500
505
510
515
520
525
RT = 400 k ,
Vin = 5 V
W
-50 -25 0 25 50 75 100 125 150
T - Junction Temperature - °C
J
f - Switching Frequency - kHz
s
-50 -25 0 25 50 75 100 125 150
T - Junction Temperature - °C
J
High Side Rdson Vin = 3.3 V
Low Side Rdson Vin = 3.3 V
0.005
0.007
0.009
0.011
0.013
0.015
0.017
0.019
0.021
0.023
0.025
RDSON - Static Drain-Source On-State Resistance - W
High Side Rdson Vin = 5 V
Low Side Rdson Vin = 5 V
4
4.5
5
5.5
6
6.5
7
7.5
8
−50 −25 0 25 50 75 100 125 150
Vin = 2.95 V
Vin = 3.3 V
Vin = 5 V
Vin = 6 V
T
J
- Junction Temperature - °C
High Side Switch Current - A
0.791
0.793
0.795
0.797
0.799
0.801
0.803
0.805
0.807
Vin = 3.3 V
V - Voltage Reference - V
ref
-50 -25 0 25 50 75 100 125 150
T - Junction Temperature - °C
J
200
400
800
1000
1200
1400
1600
1800
2000
80 180
280
380 480 580 680 780 880 980
RT - Resistance - kW
f - Switching Frequency - kHz
s
0
25
50
75
100
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Vsense-V
VsenseFalling
VsenseRising
NominalSwitchingFrequency-%
TPS57112-Q1
SLVSAL8 –DECEMBER 2010
www.ti.com
TYPICAL CHARACTERISTICS CURVES
HIGH SIDE AND LOW SIDE R
DS(ON)
vs TEMPERATURE FREQUENCY vs TEMPERATURE
Figure 1. Figure 2.
HIGH SIDE CURRENT LIMIT vs TEMPERATURE VOLTAGE REFERENCE vs TEMPERATURE
Figure 3. Figure 4.
SWITCHING FREQUENCY vs
RT RESISTANCE LOW FREQUENCY RANGE SWITCHING FREQUENCY vs VSENSE
Figure 5. Figure 6.
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