S1F78100Y2A Epson Electronics America, Inc., S1F78100Y2A Datasheet - Page 189

• Manufacturer Part Number: S1F78100Y2A
• Description: High Precision Voltage Regulators
• Manufacturer: Epson Electronics America, Inc.

S1F71200 Series
PIN DESCRIPTIONS
4–44
Pin No.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Pin name
POFFX
I
(N.C)
SWC
SENSE
SWO
V
V
V
EXO
SRC
SSC
V
I
V
V
REF
V
DD1
DD2
REF
SW
SS
O
C
Power supply
Power supply
Pin type
Output
Output
Output
Output
Input
Input
Input
—
—
—
—
—
—
—
Power system
V
V
V
V
V
V
V
V
V
V
—
—
—
—
—
—
DD1
DD2
DD2
DD1
DD1
DD1
DD1
DD1
DD1
DD1
EPSON
Power pin 1 (+), Input power pin
Power pin 2 (+), Power pin for series regulator
circuit
PNP transistor base drive pin for series regulator
Step-up/step-down output feedback pin
Series regulator phase compensation capaci-
tor connection pin
Reference resistor connection pin. Connect a
100k
Reference voltage pin. Connect a 0.1 F
capacitance between the V
No connection
Power off control pin.
During normal operation : POFFX = V
At power off time
Step-up output voltage setting pin.
For setting V
For setting V
Switching regulator phase compensation
capacitor connection pin
Step-up output feedback pin
Power pin (–), Ground pin
Capacitor connection pin for soft start
Overcurrent detection pin
Step-up switching power transistor drive pin
resistor between the V
SW
SW
= V
= V
Description
O
O
+ 1.0V : V
+ 0.5V : V
: POFFX = V
SS
SS
pins.
C
C
pins.
Technical Manual
S1F70000 Series
= V
= V
DD1
SS
DD1
SS