Datasheet
20
30
40
50
60
70
80
90
0 0.3 0.6 0.9 1.2 1.5 1.8
Output Current (A)
Ambient Temperature (°C)
400 LFM
200 LFM
Natural Convection
V
O
= –12 V
G000
20
30
40
50
60
70
80
90
0 0.25 0.5 0.75 1 1.25
Output Current (A)
Ambient Temperature (°C)
400 LFM
200 LFM
Natural Convection
V
O
= –15 V
G000
0
1
2
3
4
5
0 0.4 0.8 1.2 1.6 2
Output Current (A)
Power Dissipation (W)
V
O
= –15 V, f
sw
= 800 kHz
V
O
= –12 V, f
sw
= 800 kHz
V
O
= –5.0 V, f
sw
= 500 kHz
V
O
= –3.3 V, f
sw
= 500 kHz
G000
20
30
40
50
60
70
80
90
0 0.4 0.8 1.2 1.6 2
Output Current (A)
Ambient Temperature (°C)
400 LFM
200 LFM
Natural Convection
V
O
= –5 V
G000
50
55
60
65
70
75
80
85
90
95
100
0 0.4 0.8 1.2 1.6 2
Output Current (A)
Efficiency (%)
V
O
= –15 V, f
sw
= 800 kHz
V
O
= –12 V, f
sw
= 800 kHz
V
O
= –5.0 V, f
sw
= 500 kHz
V
O
= –3.3 V, f
sw
= 500 kHz
G000
0
5
10
15
20
25
30
35
40
45
50
0 0.4 0.8 1.2 1.6 2
Output Current (A)
Output Voltage Ripple (mV)
V
O
= –15 V, f
sw
= 800 kHz
V
O
= –12 V, f
sw
= 800 kHz
V
O
= –5.0 V, f
sw
= 500 kHz
V
O
= –3.3 V, f
sw
= 500 kHz
G000
LMZ34002
SNVS989A –JULY 2013–REVISED SEPT 2013
www.ti.com
TYPICAL CHARACTERISTICS (VIN = 36 V)
(1) (2) (3)
Figure 19. Efficiency vs. Output Current Figure 20. Voltage Ripple vs. Output Current
Figure 21. Power Dissipation vs. Output Current Figure 22. Safe Operating Area
Figure 23. Safe Operating Area Figure 24. Safe Operating Area
(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the
converter. Applies to Figure 19, Figure 20, and Figure 21.
(2) At light load the output voltage ripple may increase due to pulse skipping. See Light-Load Behavior for more information. Applies to
Figure 20.
(3) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum
operating temperatures. Derating limits apply to devices soldered directly to a 100 mm × 100 mm, 4-layer, double-sided PCB with 1 oz.
copper. Applies to Figure 22, Figure 23, and Figure 24.
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