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S-8331

Seiko Instruments USA
Part Number S-8331
Manufacturer Seiko Instruments USA
Description Step-Up Switching Regulator (DC/DC Converter ICs)
Published Jul 1, 2010
Detailed Description www.DataSheet4U.com Rev.5.1_00 STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR S-8330/8331 Series The S-...
Datasheet PDF File S-8331 PDF File

S-8331
S-8331

Overview
www.
DataSheet4U.
com Rev.
5.
1_00 STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR S-8330/8331 Series The S-8330/8331 Series is a CMOS PWM-control step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, a power MOS FET (for S-8330 Series) , and an error amplifier.
The output voltage can adjust by built-in Electric volume circuit, and equip with shutdown function.
The S-8330 Series is low current consumption because of CMOS structure , and a step-up switching regulator constructed by externally connecting only a coil, a capacitor and a diode.
This feature, along with its 8-Pin SSOP package and a few external components, makes the S-8330 Series ideal for LCD bias generators of portable equipment.
For applications requiring a high output current, products used with an external transistor (S-8331 Series) are also available.
„ Features • Maximum output voltage: 20 V to 30 V (2 V step) 12 V range can be adjusted by electric volume • Output voltage accuracy :±2.
4% • Output current: 5 mA ( VIN= 5 V,VOUT= 30 V) • Low current consumption : During operation: 100 μA (typ.
) (VIN= 5 V 180 kHz) During shutdown : 1.
0 μA (max.
) • Shutdown function: Stepping up operation is stopped , and Vout pin is shorted to GND while shutdown.
• Input voltage range: 2.
0 to 9.
0 V • Soft start function • Built-in CR oscillation circuit: Oscillating frequency: 180 kHz (typ.
) (A series) Oscillating frequency: 50 kHz (typ.
) (B series) • 8-pin SSOP plastic package • 8-bit built-in electric volume circuit • External transistor type is available (S-8331 Series) • Lead-free products „ Applications • Power supplies for medium type or large type LCD panel.
• Power supplies for portable devices such as pagers, handy calculators, and remote controllers • Constant voltage power supplies for cameras, video equipment, and communication equipment „ Package Package name 8-Pin SSOP Package FS008-A Drawing code Tape FS008-A Reel FS008-A Seiko Instrument...


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