TPS5120-EP Datasheet, PDF (12/23 Pages) Texas Instruments – DUAL OUTPUT, TWO-PHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

TPS5120ĆEP
DUAL OUTPUT, TWOĆPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER
SGLS224A − JANUARY 2004 − REVISED APRIL 2006
TYPICAL CHARACTERISTICS
QUIESCENT CURRENT
vs
JUNCTION TEMPERATURE
1.30
1200
QUIESCENT CURRENT (SHUTDOWN)
vs
JUNCTION TEMPERATURE
1.25
VCC = 28 V
1.20
1.15
1.10
VCC = 7 V
VCC = 4.5 V
1.05
−50
0
50
100
150
TJ − Junction Temperature − °C
Figure 3
−1.80
DRIVE OUTPUT CURRENT (OUT_u)
vs
DRIVE OUTPUT VOLTAGE
−1.70
−1.60
T_J = −40 °C
−1.50
−1.40
−1.30
−1.20
T_J = 25 °C
−1.10
−1.00
−0.90
−0.80
0.5
T_J = 85 °C
T_J = 125 °C
T_J = −20 °C
1
1.5
2
2.5
3
3.5
VO − Drive Output Voltage (OUT_u) − V
Figure 5
1000
800
600
V_CC = 28 V
V_CC = 7 V
400
V_CC = 4.5 V
200
0
−50
0
50
100
150
TJ − Junction Temperature − °C
Figure 4
DRIVE OUTPUT CURRENT (OUT_u)
vs
DRIVE OUTPUT VOLTAGE
1.50
1.40 ^{TJ = −40 °C}
1.30
1.20
1.10
1.00
0.90
0.80
0.70 ^TJ ^{= −20 °C}
T_J = 85 °C
T_J = 25 °C
T_J = 125 °C
0.60
1.5
2
2.5
3
3.5
4
4.5
VO − Drive Output Voltage (OUT_u) − V
Figure 6
12
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