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S1F79100Y Series
S1F70000 Series EPSON 3–21
Technical Manual
S1F79100Y
Series
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
O=10mA, VO=–5.0V)
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
S1F79100Y Series CMOS Negative Voltage Regulators
LINEUP
BLOCK DIAGRAM
V
REF
GND
(2 pin)
V
O
(3 pin)
V
I
(1 pin)
–
+
PIN ASSIGNMENTS
1
V
I
2
GND
S1F79100Y
series
3
V
O
Product
Voltage (V)
Current consumption Operating temperature
Input Output
(
µA) (°C)
S1F79100Y1H0 –1.5 4.0
S1F79100Y1G0 –1.8 4.0
S1F79100Y1D0 –15 –3.0 4.0 –40 to +85
S1F79100Y1P0 –4.0 4.0
S1F79100Y1B0 –5.0 4.0
• Built-in highly stable reference voltage source : Typ.
–1.0V
• Small output voltage temperature coefficient : Typ. –
100ppm/˚C
• Wide operating voltage range : 15V Max.