Datasheet

100ms/div
V
OUT1
2V/div
ON/SS1=ON/SS2
5V/div
V
OUT2
2V/div
10ms/div
I
LOAD
10A/div
V
OUT
1V/div
ON/SS
2V/div
UV_DELAY
2V/div
10ms/div
I
LOAD
10A/div
V
OUT1
2V/div
V
OUT2
1V/div
UV_DELAY
2ms/div
V
OUT1
2V/div
V
OUT2
2V/div
V
OUT1
2V/div
V
OUT2
2V/div
VIN
22V/div
VIN
7V/div
ON/SS1=ON/SS2
2V/div
2ms/div
PGOOD1
5V/div
V
OUT1
2V/div
ON/SS1=ON/SS2
1V/div
VIN
10V/div
LM2642
SNVS203I –MAY 2002–REVISED APRIL 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS
Softstart Waveforms Power On and PGOOD1 Waveforms
(I
LOAD1
= I
LOAD2
= 0A) (I
LOAD1
= I
LOAD2
= 0A)
Figure 4. Figure 5.
Over-Current and UVP Shutdown
UVP Startup Waveforms (I
LOAD2
= 0A)
Figure 6. Figure 7.
Shutdown Waveforms Ch.1 Load Transient Response
(I
LOAD1
= I
LOAD2
= 0A) 5V
OUT
, 12V
IN
Figure 8. Figure 9.
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Product Folder Links: LM2642