Description; Features; Applications; Lineup - Epson Power Supply IC S1F70000 Technical Manual

S1F79100Y Series CMOS Negative Voltage Regulators

DESCRIPTION

S1F79100Y series voltage regulators provide step-
down and stabilization for an input voltage to a speci-
fied fixed voltage. The four devices in the series incor-
porate a precision, power-saving reference voltage gen-
erator, a transistorized differential amplifier and resis-
tors for determining the output voltage.
The S1F79100Y series is available in 3-pin plastic
SOT89s.

FEATURES

• Ample lineup : 5 kinds are available in the range from
–1.5V to –5V.
• Small difference between input and output voltage :
Typ. 0.17V (I =10mA, V
O

LINEUP

Product
Input
S1F79100Y1H0
S1F79100Y1G0
S1F79100Y1D0 –15
S1F79100Y1P0
S1F79100Y1B0

BLOCK DIAGRAM

V
REF
–
+
V
I
(1 pin)
S1F70000 Series
Technical Manual
=–5.0V)
O
Voltage (V)
Current consumption
Output
–1.5
–1.8
–3.0
–4.0
–5.0
GND
(2 pin)
V
O
(3 pin)
EPSON
• Built-in highly stable reference voltage source : Typ.
–1.0V
• Small output voltage temperature coefficient : Typ. –
100ppm/˚C
• Wide operating voltage range : 15V Max.

APPLICATIONS

• Fixed-voltage power supplies for battery-operated
equipment such as portable video cassette recorders,
video cameras and radios
• Fixed-voltage power supplies for communications
equipment
• High-stability reference voltage generators
Operating temperature
( A)
4.0
4.0
4.0
4.0
4.0

PIN ASSIGNMENTS

V 1
I
S1F79100Y
2
GND
series
3
V
O
S1F79100Y Series
( C)
–40 to +85
3–21