s1f78520 Epson Electronics America, Inc., s1f78520 Datasheet - Page 2

• Manufacturer Part Number: s1f78520
• Description: Charge-pump Step Down Regulator With Power Saving Mode
• Manufacturer: Epson Electronics America, Inc.

S1F78520
2
BLOCK DIAGRAM
VO1LV1,
VO1LV0
VO2LV1,
VO2LV0
ROSC1
VSENS
XPOFF
OSCIN
XSTBY
ROSC
VSEL
CPG
V
V
DD
SS
(6)
Bias circuit
Reference current
Reference voltage
(2)
Low voltage
detection circuit
(1)
Oscillation
circuit
(7)
Shut down
2
2
Fig. 1 Block diagram
(3)
Voltage dropping type
charge pump
(5)
Power good detection
circuit
(4)
LDO (series regulator)
V
V
V
C1P
C1N
V
C2P
C2N
V
XVDET
PG
SS3
OUT1
DD2
SS2
OUT2
Rev. 1.2