S1F76620 Series

S1F76620 Series CMOS DC/DC Converter (Voltage Doubler)

DESCRIPTION

S1F76620 is a high efficiency and low power consumption CMOS DC/DC converter. It enables to obtain 2 times step-up output (3.0 to 16V) from input voltage (1.5 to 8V). Also, S1F76620 enable to drive ICs (liquid crystal driver, analog IC, etc.), which require another power supply in addition to logic main power supply, with a single power supply, and it is suitable for micro power IC of hand-held computers, handy devices, etc. due to its small power consumption.

BLOCK DIAGRAM

FEATURES

(1)High efficiency and low power consumption CMOS DC/DC converter

(2)Easy voltage conversion from input voltage VDD (5V) to positive potential side or negative potential side

• Input VDD (5V) to output –VDD(–5V), 2VDD (10V)

(3) Output current: Max. 30mA (VDD = 5V)

(4)Power conversion efficiency : Typ. 95%

(5)Possibility of series connection

(In 2-piece use, VDD = 5V, VO = 15V)

(6) Low voltage operation : Suitable for battery drive

(7)Built-in CR oscillator

(8)SOP4-8pin ·························

Bare Chip ·························

VDD

Voltage conversion circuit

VO

OSC1

 

 

OSC2

CR oscillator

 

POFF

 

 

GND

 

 

 

CAP1+ CAP1–

 

1–10

EPSON

S1F70000 Series Technical Manual