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

The S1F76300 series of CMOS switching regulators
comprises nine series—the S1F76310, S1F76380 series
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
• 10 A (Typ.) maximum current consumption
• Standby operation
• 3 A (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

LINEUP

Voltage
(V)
Product
Input Output
S1F76310M1A0 5.0
S1F76310M1K0 1.5 3.5
S1F76310M1B0 (0.9 Min.) 3.0
S1F76310M1L0 2.4
S1F76380M1L0 1.5 2.4
S1F76380M1H0 (0.9 Min.) 2.2
S1F70000 Series
Technical Manual
featuring built-in RC oscillators, the S1F76330 series
requiring external crystal oscillators.

APPLICATIONS

• Fixed-voltage power supplies for battery-operated
• Power supplies for pagers, memory cards, calculators
• Fixed-voltage power supplies for medical equipment
• Fixed-voltage power supplies for communications
• Power supplies for microcomputers
• Uninterruptable power supplies
• Power supplies for LCD panel
Multiplication
Voltage
frequency Power-on clear Battery backup
detection
source
On-chip CR
oscillator
Yes Yes
On-chip CR
oscillator
EPSON
equipment such as portable video cassette recorders,
video cameras and radios
and similar hand-held equipment
equipment
Response
compensation
Yes No
No Yes
S1F76300 Series
Output voltage
temperature Package
characteristic
SOP3-8pin
SOP3-8pin
No
SOP3-8pin
SOP3-8pin
– 4.0 mV/˚C SOP3-8pin
– 4.5 mV/˚C SOP3-8pin
4–1