S1F78100Y2A Epson Electronics America, Inc., S1F78100Y2A Datasheet - Page 81

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

S1F76640 Series
S1F76640 Series CMOS DC/DC Converter & Voltage Regulator
DESCRIPTION
sumption CMOS DC/DC converter. It is roughly di-
vided into two portions, step-up circuit and stabilization
circuit. The step-up circuit can provide 2 times step-up
outputs (3.6 to 11V), 3 times step-up outputs (5.4 to
16.5V) or 4 times step-up outputs (7.2 to 22V) of input
voltages (1.8 to 5.5V). If external parts (diode, capaci-
tor) are attached to it, it can realize step-up operations of
higher magnifications.
voltages. Since the stabilization circuit can provide
three kinds of minus temperature gradients to stabilized
outputs, it is optimum as a power supply for liquid crys-
tal display (LCD).
driver, analog IC, etc.), which requires another power
supply in addition to logic main power supply, with a
single power supply. Also, its small power consump-
tion makes it suitable as a micro power supply for handy
devices like hand-held computer.
2–38
The stabilization circuit enables to set outputs to any
S1F76640 is a high efficiency and low power con-
Also, S1F76640 enable to drive ICs (liquid crystal
EPSON
FEATURES
• High efficiency and low power consumption CMOS
• Easy three kinds voltage conversions to positive po-
• Attachment of external parts (diode, capacitor)
• Built-in output voltage stabilization circuit
• Output current : Max. 20mA(V
• Power conversion efficiency : Typ. 95%
• 3 kinds of reference voltages with negative tempera-
• Power off operation by external signal
• Possibility of high magnification step-up operation
• Low voltage operation .... Optimum for battery drive
• Built-in CR oscillator
• SSOP2-16pin .......... S1F76640M0A0
• Radiation-resistant design has not been provided for
. From input voltage V
DC/DC converter
tential side from input voltage V
(+6.6V), 3 V
makes step-up operations of higher magnifications
possible.
ture gradient characteristic suitable for LCD drive
power supply can be selected.
by series connection
Bare Chip ................ S1F76640D0A0
this specification.
· External resistor enables to set any output voltages.
· Static current at power off time : Max. 2 A
DD
(+9.9V) and 4 V
DD
(+3.3V) to outputs 2 V
DD
DD
=+5V)
DD
(+3.3V)
Technical Manual
(+13.2V).
S1F70000 Series
DD