Epson S1F70000 Power Supply User Manual


 
S1F76300 Series
S1F70000 Series EPSON 4–1
Technical Manual
S1F76300
Series
The S1F76300 series of CMOS switching regulators
comprises nine series—the S1F76310, S1F76380 series
featuring built-in RC oscillators, the S1F76330 series
requiring external crystal oscillators.
S1F76310, S1F76380 Series Built-in CR Oscillator Type
CMOS Switching Regulators
DESCRIPTION
The S1F76310, S1F76380 series of CMOS switching
regulators provide input voltage step-up and regulation
to a specified fixed voltage using an external coil. The
devices in these series incorporate precision, low-power
reference voltage generators and transistors for driving
an internal comparator. They feature low power con-
sumption, low operating voltages, voltage detection and
standby operation.
The devices offer a range of fixed output voltages, from
2.0 to 5.0V. The S1F76310 series features battery
backup and power-on clear, the S1F76380 series fea-
tures power-on clear and response compensation, the
S1F76380 series offer an output voltage temperature
characteristic for driving an LCD. They are available in
SOP3-8pin.
FEATURES
0.9V (Min.) operating voltage
•10µA (Typ.) maximum current consumption
Standby operation
•3µA (Typ.) standby current consumption
1.05 ±0.05V high-accuracy voltage detection
Battery backup (available on S1F76310 series)
On-chip CR oscillator
Power-on clear (available on S1F76310 and
S1F76380 series)
Output voltage temperature characteristic for driving
an LCD (available on S1F76380 series)
SOP3-8pin
APPLICATIONS
Fixed-voltage power supplies for battery-operated
equipment such as portable video cassette recorders,
video cameras and radios
Power supplies for pagers, memory cards, calculators
and similar hand-held equipment
Fixed-voltage power supplies for medical equipment
Fixed-voltage power supplies for communications
equipment
Power supplies for microcomputers
Uninterruptable power supplies
Power supplies for LCD panel
LINEUP
Voltage
Multiplication
Voltage Response
Output voltage
Product
(V)
frequency
detection
Power-on clear Battery backup
compensation
temperature
Package
Input Output
source characteristic
S1F76310M1A0
5.0 SOP3-8pin
S1F76310M1K0
1.5 3.5 On-chip CR
Yes No No
SOP3-8pin
S1F76310M1B0
(0.9 Min.) 3.0 oscillator
Yes Yes
SOP3-8pin
S1F76310M1L0
2.4 SOP3-8pin
S1F76380M1L0
1.5 2.4 On-chip CR
No Yes
– 4.0 mV/˚C SOP3-8pin
S1F76380M1H0
(0.9 Min.) 2.2 oscillator – 4.5 mV/˚C SOP3-8pin