Datasheet

10 mV/Div 500 ns/Div
2A/Div
100 mV/Div 500 µs/Div
10 mV/Div 500 ns/Div
0 1 2 3
0.998
0.999
1.000
1.001
1.002
NORMALLIZED OUTPUT VOLTAGE (V/V)
OUTPUT CURRENT (A)
9 Vin
12 Vin
20 Vin
30 40 50 60 70 80 90 100 110 120 130
0
1
2
3
4
MAXIMUM OUTPUT CURRENT (A)
AMBIENT TEMPERATURE (°C)
JA=12°C/W
30 40 50 60 70 80 90 100 110 120 130
0
1
2
3
4
MAXIMUM OUTPUT CURRENT (A)
TEMPERATURE (°C)
JA = 12 °C/W
LMZ22003
SNVS658H –MARCH 2011–REVISED OCTOBER 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified, the following conditions apply: V
IN
= 12V; Cin = 2 x 10μF + 1μF X7R Ceramic; C
O
= 220μF
Specialty Polymer + 10 uF Ceramic; TAmbient = 25° C for waveforms. Efficiency and dissipation plots marked with * have
cycle skipping at light loads resulting is slightly higher Output ripple – See Design Steps for the LMZ22003 Application
section.
Thermal Derating V
IN
= 12V, V
OUT
= 5.0V Thermal Derating V
IN
= 12V, V
OUT
= 3.3V
Figure 39. Figure 40.
Output Ripple
Normalized Line and Load Regulation V
OUT
= 3.3V 12V
IN
3.3V
O
@ 3A, BW = 20 MHz
Figure 41. Figure 42.
Output Ripple Transient Response
12V
IN
3.3V
O
@ 3A BW = 250 MHz 12V
IN
3.3V
O
0.5 to 3A Step
Figure 43. Figure 44.
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