Datasheet

-120
-90
-60
-30
0
30
60
90
120
±40
±30
±20
±10
0
10
20
30
40
1000 10k 100k
Gain (dB)
Frequency (kHz)
Gain
Phase
C001 C001 C001
Phase (°)
0.0
0.4
0.8
1.2
1.6
2.0
0 1 2 3 4
Power Dissipation (W)
Output Current (A)
Vo = 5.0V, fsw = 1MHz
Vo = 3.3V, fsw = 750kHz
Vo = 2.5V, fsw = 750kHz
Vo = 1.8V, fsw = 500kHz
Vo = 1.2V, fsw = 300kHz
Vo = 0.9V, fsw = 250kHz
C004
20
30
40
50
60
70
80
90
0 1 2 3 4
Ambient Temperature (C)
Output Current (A)
All Output Voltages
C001
Airflow = 0 LFM
40
50
60
70
80
90
100
0 1 2 3 4
Efficiency (%)
Output Current (A)
Vo = 5.0V, fsw = 1MHz
Vo = 3.3V, fsw = 750kHz
Vo = 2.5V, fsw = 750kHz
Vo = 1.8V, fsw = 500kHz
Vo = 1.2V, fsw = 300kHz
Vo = 0.9V, fsw = 250kHz
C001
5
10
15
20
25
30
0 1 2 3 4
Output Ripple Voltage (mV)
Output Current (A)
Vo = 5.0V, fsw = 1MHz
Vo = 3.3V, fsw = 750kHz
Vo = 2.5V, fsw = 750kHz
Vo = 1.8V, fsw = 500kHz
Vo = 1.2V, fsw = 300kHz
Vo = 0.9V, fsw = 250kHz
C004
LMZ31704
SLVSBV8A –JUNE 2013–REVISED AUGUST 2013 www.ti.com
TYPICAL CHARACTERISTICS (PVIN = VIN = 12 V)
(1) (2)
Figure 2. Efficiency vs. Output Current Figure 3. Voltage Ripple vs. Output Current
Figure 4. Power Dissipation vs. Output Current Figure 5. Safe Operating Area
Figure 6. V
OUT
= 1.8 V, I
OUT
= 4 A, C
OUT
= 200 µF ceramic, f
SW
= 500 kHz
(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 2, Figure 3, and Figure 4.
(2) 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 PCB with 2 oz. copper.
Applies to Figure 5.
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