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

S1F76610 Series CMOS DC/DC Converter (Voltage
Doubler / Tripler) & Voltage Regulator

DESCRIPTION

The S1F76610 Series is a highly effecient CMOS DC/
DC converter for doubling or tripling an input voltage.
It incorporates an on-chip voltage regulator to ensure
stable output at the specified voltage. The S1F76610
Series offers a choice of three, optional temperature
gradients for applications such as LCD panel power
supplies.
The S1F76610C0B0 is available in 14-pin plastic DIPs,
the S1F76610M0B0, in 14-pin plastic SOPs, and the
S1F76610M2B0 in 16-pin plastic SSOPs.

FEATURES

• 95% (Typ.) conversion efficiency
• Up to four output voltages, V
voltage, V
I
• On-chip voltage regulator
• 20mA maximum output current at V
• Three temperature gradients : –0.1, –0.4 and –0.6%/
C

BLOCK DIAGRAM

V
DD
OSC1
OSC2
V
I
CAP1–
CAP1+
CAP2–
CAP2+
S1F70000 Series
Technical Manual
, relative to the input
O
= –5V
I
CR
oscilator
Reference
voltge
generator
Voltage
multiplier
(1)
Voltage
multiplier
(2)
Multiplication
stage
EPSON
• External shut-down control
• 2 A maximum output current when shut-down
• Two-in-series configuration doubles negative output
voltage.
• On-chip RC oscillator
• S1F76610C0B0 ...... Plastic DIP-14 pin
S1F76610M0B0 ...... Plastic SOP5-14 Pin
S1F76610M2B0 ...... Plastic SSOP2-16 pin

APPLICATIONS

• Power supplies for LCD panels
• Fixed-voltage power supplies for battery-operated
equipment
• 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
Temperature
gradient
selector
Voltage regulator
Stabilization
stage
S1F76610 Series
TC1
TC2
P
OFF
RV
V
REG
V
O
2–1