Details, datasheet, quote on part number: S-8351A33MC-J2S-T2
PartS-8351A33MC-J2S-T2
CategoryPower Management and Supplies => IC Voltage Regulators => IC Switching Voltage Regulators => 7613359
Title0.3 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, PDSO5
Description
CompanySeiko Instruments
DatasheetDownload S-8351A33MC-J2S-T2 datasheet
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Specifications 
Configuration / FunctionBuck
Package TypeSOT23, Other, SOT-23, 5 PIN
Life Cycle StageACTIVE
IOUT0.3000 amps
VIN1.8 to 10 volts
fsw110 kHz
Operating Temperature-40 to 85 C (-40 to 185 F)

 

Features, Applications

STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER

The S-8351/8352 Series is a CMOS step-up switching regulator controller which mainly consists of a reference voltage source, an oscillation circuit, a comparator and PFM control circuit. The PFM control circuit allows the duty ratio to be automatically switched according to the load (at light load 50%, at high output current : 75%), enabling products with a low ripple over a wide range, high efficiency, and high output current (A, B, and D type). Products with a fixed duty ratio of 75% are also available (C type). The S-8351 Series can configure a step-up switching regulator with an external coil, capacitor, and diode. A protection circuit turns off the built-in MOS FET when the voltage at the CONT pin exceeds the limit to prevent it from being damaged. In addition to the above features, the small package and low current consumption, makes the S-8351 Series ideal for applications such as the power supply unit of portable equipment. The S-8352 Series, which features an external transistor, is suitable for applications requiring a high output current.

Features

Low voltage operation : Startup 0.9 V min. (IOUT = 1 mA) guaranteed Low current consumption : During operation 23.2 A (VOUT 3.3 V, typ.) During shutdown 0.5 A (max.) Duty ratio built-in auto-switching-type PFM control circuit (A, B, and D type) 75 % built-in fixed-type PFM control circuit (C type) External parts : Coil, capacitor, and diode Output voltage : Selectable 0.1 V steps between 6.5 V (A, B, and C type) Selectable 0.1 V steps between V (D type) Output voltage accuracy : 2.4% Shutdown function (A type) VDD / VOUT separate type (D type) External transistor type available (S-8352 Series)

Applications

Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs Power supplies for audio equipment such as portable / MD players Constant voltage power supplies for cameras, video equipment, and communications equipment Power supplies for microcomputers

Package Name SOT-23-5 SOT-89-3 Package MP005-A UP003-A Drawing Code Tape MP005-A UP003-A Reel MP005-A UP003-A

STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.1.2_00 S-8351/8352 Series Block Diagrams

CONT Protection circuit PFM control circuit IC internal power supply VREF + - VOUT
Figure (2) B and C Types (Without Shutdown Function, VDD / VOUT Non-separate Type)
Figure (3) D Type (VDD / VOUT Separate Type)
CONT IC internal power supply Protection circuit PFM control circuit + - VREF VDD VOUT

STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER Rev.1.2_00 S-8351/8352 Series

VOUT IC internal power supply VREF PFM control circuit + -
Figure (2) B and C Type (Without Shutdown function, VDD / VOUT non-separate type)
Figure (3) D Type (VDD / VOUT separate type)
VDD IC internal power supply PFM control circuit VOUT

 

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S-8351A33MC-J2S-T2G Specifications: Configuration / Function: Buck ; Package Type: SOT23, Other, SOT-23, 5 PIN ; Life Cycle Stage: ACTIVE ; IOUT: 0.3000 amps ; VIN: 1.8 to 10 volts ; fsw: 110 kHz ; Operating Temperature:
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S-8351D20MC-J8F-T2 Specifications: Configuration / Function: Buck ; Package Type: SOT23, Other, SOT-23, 5 PIN ; Life Cycle Stage: ACTIVE ; IOUT: 0.3000 amps ; VIN: 1.8 to 10 volts ; fsw: 110 kHz ; Operating Temperature:
S-8352A25MC-K2K-T2 Specifications: Configuration / Function: SINGLE ; Package Type: SOT23, Other, SOT-23, 5 PIN ; Life Cycle Stage: ACTIVE ; IOUT: 0.3000 amps ; VIN: 1.8 to 10 volts ; fsw: 110 kHz ; Operating Temperature:
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