Epson Power Supply S1F70000 - Manual (Page 44)

S1F76610 Series
S1F70000 Series
EPSON 2–1
Technical Manual
S1F76610
Series
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
O , relative to the input
voltage, V I
• On-chip voltage regulator
• 20mA maximum output current at V
I = –5V
• Three temperature gradients : –0.1, –0.4 and –0.6%/
°
C
V DD
Voltage
multiplier
(1)
Voltage
multiplier
(2)
CR
oscilator
Reference
voltge
generator
Temperature
gradient
selector
Voltage regulator
TC1
TC2
RV
P OFF
V REG
V O
V I
OSC2
OSC1
CAP1+
CAP1–
CAP2+
CAP2–
Multiplication
stage
Stabilization
stage
BLOCK DIAGRAM
S1F76610 Series CMOS DC/DC Converter (Voltage
Doubler / Tripler) & Voltage Regulator
• External shut-down control
• 2
µ
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