TPS55332-Q1 Datasheet, PDF (6/29 Pages) Texas Instruments – 2.2-MHz, 60-V OUTPUT STEP UP DC/DC CONVERTER

TPS55332-Q1
SLVS939A – JUNE 2009 – REVISED JUNE 2010
www.ti.com
100
90
80
70
60
50
40
30
0.0
TYPICAL CHARACTERISTICS
EFFICIENCY (%)
vs
LOAD CURRENT (A)
EFFICIENCY (%)
vs
LOAD CURRENT (A)
100
V_IN = 18V
90
V_IN = 18V
80
V_IN = 8V
V_IN = 13.5V
Vout = 25.5V
C_O = 10mF
f_sw = 2MHz
L = 22mH
T_A = 25°C
0.1
0.2
0.3
0.4
I_L − Load Current − A
Figure 2.
0.5
G001A
70
60
50
40
30
20
0.0
V_IN = 13.5V
Vout = 25.5V
C_O = 10mF
f_sw = 180kHz
L = 22mH
T_A = 25°C
0.1
0.2
0.3
0.4
I_L − Load Current − A
Figure 3.
0.5
G002A
2.520
2.515
2.510
VSENSE Ref VOLTAGE (V)
vs
TEMPERATURE (°C)
48V
24V
2.505
2.500
2.495
7V
2.490
2.485
−40 −20 0
20 40 60 80 100 120
TA − Free-Air Temperature − °C
G003
Figure 4.
VIN LEAKAGE CURRENT (mA)
vs
TEMPERATURE (°C)
9
8
7
24V
6
5
4
3
2
1
12V
0
−40 −20 0
20 40 60 80 100 120
TA − Free-Air Temperature − °C
G004
Figure 5.
6
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