LMZ14201H_13 Datasheet, PDF (12/28 Pages) Texas Instruments – LMZ14201H 1A SIMPLE SWITCHER® Power Module for High Output Voltage

LMZ14201H
SNVS690D – JANUARY 2011 – REVISED FEBRUARY 2013
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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
V_OUT = 5V
3.5
3.0
Switching Frequency
vs.
Power Dissipation
V_OUT = 5V
1.8
VIN = 12V
VIN = 24V
1.5
VIN = 36V
VIN = 42V
1.2
2.5
0.9
2.0
0.6
1.5
1.0
5
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Figure 39.
0.3
0.0
200 300 400 500 600 700 800
SWITCHING FREQUENCY (kHz)
Figure 40.
Current Limit
vs.
Input Voltage
V_OUT = 12V
3.5
3.0
2.5
2.0
1.5
1.0
5
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Figure 41.
Switching Frequency
vs.
Power Dissipation
V_OUT = 12V
1.8
VIN = 15V
VIN = 24V
1.5
VIN = 36V
VIN = 42V
1.2
0.9
0.6
0.3
0.0
200 300 400 500 600 700 800
SWITCHING FREQUENCY (kHz)
Figure 42.
Current Limit
vs.
Input Voltage
V_OUT = 24V
3.5
3.0
2.5
2.0
1.5
1.0
30
Fsw = 250kHz
Fsw = 400kHz
Fsw = 600kHz
33 36 39 42 45
INPUT VOLTAGE (V)
Figure 43.
Switching Frequency
vs.
Power Dissipation
V_OUT = 24V
1.8
1.6
1.4
1.2
1.0
0.8
0.6
VIN = 30V
0.4
VIN = 36V
VIN = 42V
0.2
0.0
200 300 400 500 600 700 800
SWITCHING FREQUENCY (kHz)
Figure 44.
12
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