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AN937 Datasheet, PDF (11/29 Pages) STMicroelectronics – The L4971 is a 1.5 A monolithic dc-dc converter
AN937
Power supply, UVLO and voltage reference
Figure 15. Timing diagram in inhibit, overcurrent and turn off condition
VSS/INH
1.8V
1.3V
1.2V
IC
ILIM
IO
PWM
INHIBIT
OVER-CURRENT
TURN-OFF
t
ILIM
t
VO
VCC
t
t
D97IN811
UVLO
OFF
t
Doc ID 5655 Rev 15
11/29