AN8049 Panasonic Semiconductor, AN8049 Datasheet - Page 20

• Manufacturer Part Number: AN8049
• Description: 1.8-volt 3-channel step-up/ step-down/ and polarity inverting DC-DC converter control IC
• Manufacturer: Panasonic Semiconductor

AN8049FHN
20
[7] Sequential operation
C
signals may have voltages in the range 0 V to V
Application Notes (continued)
CTL3
C
Delays can be provided in the startup times by inserting capacitors (C
Delay time: t
Note that the individual channels can also be turned on or off independently by external signals. These external
CTL1
AN8049FHN
< C
C
CTL2
CTL2
DLY
< C
CTL3
1.26 (V)
C
CTL1
C
CTL
OUT1
OUT2
OUT3
U.V.L.O. cleared
( F)/1.1 ( A)
Figure 8. Sequential operation
1.26 V
CC
.
(s)
CTL1
CTL
) between the CTL pins and ground.
CTL2
Voltage Regulators
CTL3