Datasheet

30 33 36 39 42 45
3.0
3.5
4.0
4.5
5.0
5.5
6.0
DC CURRENT LIMIT LEVEL (A)
INPUT VOLTAGE (V)
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
200 300 400 500 600 700 800
0
1
2
3
4
5
6
POWER DISSIPATION (W)
SWITCHING FREQUENCY (kHz)
VIN = 30V
VIN = 36V
VIN = 42V
5 10 15 20 25 30 35 40 45
3.0
3.5
4.0
4.5
5.0
5.5
6.0
DC CURRENT LIMIT LEVEL (A)
INPUT VOLTAGE (V)
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
200 300 400 500 600 700 800
0
1
2
3
4
5
6
POWER DISSIPATION (W)
SWITCHING FREQUENCY (kHz)
VIN = 15V
VIN = 24V
VIN = 36V
VIN = 42V
5 10 15 20 25 30 35 40 45
3.0
3.5
4.0
4.5
5.0
5.5
6.0
DC CURRENT LIMIT LEVEL (A)
INPUT VOLTAGE (V)
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
200 300 400 500 600 700 800
0
1
2
3
4
5
6
POWER DISSIPATION (W)
SWITCHING FREQUENCY (kHz)
VIN = 12V
VIN = 24V
VIN = 36V
VIN = 42V
LMZ14203H
SNVS692D –JANUARY 2011–REVISED OCTOBER 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified, the following conditions apply: V
IN
= 24V; Cin = 10uF X7R Ceramic; C
O
= 47uF; T
AMB
= 25°C.
Current Limit vs Input Voltage Switching Frequency vs Power Dissipation
V
OUT
= 5V V
OUT
= 5V
Figure 43. Figure 44.
Current Limit vs Input Voltage Switching Frequency vs Power Dissipation
V
OUT
= 12V V
OUT
= 12V
Figure 45. Figure 46.
Current Limit vs Input Voltage Switching Frequency vs Power Dissipation
V
OUT
= 24V V
OUT
= 24V
Figure 47. Figure 48.
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