S-8351C30UA-J6PT2G datasheet, PDF

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S-8351C30UA-J6PT2G: DescriptionIC reg boost 3V sot89-3; Categorysemiconductor Power management; File Size547KB，51 Pages; ManufacturerSeiko; Environmental Compliance

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S-8351C30UA-J6PT2G Overview

IC reg boost 3V sot89-3

S-8351C30UA-J6PT2G Parametric

Parameter Name	Attribute value
Datasheets
S835(1,2) Series
Product Photos
SC-62, SOT-89, TO-243
Standard Package	1,000
Category	Integrated Circuits (ICs)
Family	PMIC - Voltage Regulators - DC DC Switching Regulators
Packaging	Tape & Reel (TR)
Type	Step-Up (Boost)
Output Type	Fixed
Number of Outputs	1
Voltage - Outpu	3V
Voltage - Inpu	0.9 V ~ 10 V
Frequency - Switching	100kHz
Current - Outpu	-
Synchronous Rectifie	N
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mou
Package / Case	TO-243AA
Supplier Device Package	SOT-89-3

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S-8351/8352 Series

www.sii-ic.com

STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING

REGULATOR / SWITCHING REGULATOR CONTROLLER

Rev.3.0

_00

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 at 0.9 V min. (I

OUT

= 1 mA) guaranteed

• Low current consumption : During operation 23.2

A (V

OUT

= 3.3 V, typ.)

During shutdown 0.5

A (max.)

• Duty ratio : 50 % / 75 % 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 in 0.1 V steps between 2.0 V to 6.5 V (A, B, and C type)

Selectable in 0.1 V steps between 1.5 V to 6.5 V (D type)

• Output voltage accuracy :

±2.4%

• Shutdown function (A type)

• V

/ V

OUT

separate type (D type)

• External transistor type available (S-8352 Series)

• Lead-free, Sn 100%, halogen-free

*1.

Refer to “

Product Name Structure”

for details.

Applications

• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs

• Power supplies for audio equipment such as portable CD / MD players

• Constant voltage power supplies for cameras, video equipment, and communications equipment

• Power supplies for microcomputers

Packages

• SOT-23-3

• SOT-23-5

• SOT-89-3

Seiko Instruments Inc.

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