TPS65163
www.ti.com
SLVSA28 –OCTOBER 2009
BUCK CONVERTER SWITCH WAVEFORM
SKIP MODE
POSITIVE CHARGE PUMP LOAD TRANSIENT RESPONSE
I
= 10 mA to 50 mA
GH
V
I
= 15.5 V
V
I
= 3.3 V
= 0 mA
S
LOGIC
= 250 mA
= 26 V
S
LOGIC
V
GH
V
SWB
V
GH
I
GH
I
INDUCTOR
Figure 13.
Figure 14.
POSITIVE CHARGE PUMP LINE TRANSIENT RESPONSE
POSITIVE CHARGE PUMP OUTPUT VOLTAGE RIPPLE
= 50 mA
V
= 11.5 V TO 12.5 V
I
IN
GH
V
S
= 15.5 V
V
I
= 15.5 V
V
I
= 750 mA
= 26 V
S
IN
S
= 750 mA
= 26 V
V
I
S
GH
V
= 50 mA
GH
GH
V
GH
V
S
Figure 15.
Figure 16.
NEGATIVE CHARGE PUMP LINE TRANSIENT RESPONSE
NEGATIVE CHARGE PUMP LOAD TRANSIENT RESPONSE
V
= 11.5 V to 12.5 V
I
= 10 mA to 50 mA
IN
GL
V
= 3.3 V
LOGIC
V
IN
I
= 250 mA
LOGIC
V
= -7 V
GL
V
GL
V
= 3.3 V
LOGIC
I
= 500 mA
LOGIC
V
I
= -7 V
GL
= 50 mA
GL
V
GL
I
GL
Figure 17.
Figure 18.
Copyright © 2009, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Link(s) :TPS65163
TI [ TEXAS INSTRUMENTS ]
