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S-8533A33AFT-TB-G

产品描述IC reg ctrlr buck pwm 8-tssop
产品类别半导体    电源管理   
文件大小2MB,共33页
制造商Seiko
标准  
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S-8533A33AFT-TB-G概述

IC reg ctrlr buck pwm 8-tssop

S-8533A33AFT-TB-G规格参数

参数名称属性值
Datasheets
S-8533 Series
Product Photos
8-TSSOP
Standard Package3,000
CategoryIntegrated Circuits (ICs)
FamilyPMIC - Voltage Regulators - DC DC Switching Controllers
系列
Packaging
Tape & Reel (TR)
PWM TypeControlle
Number of Outputs1
Frequency - Max345kHz
Duty Cycle100%
Voltage - Supply2.7 V ~ 16 V
BuckYes
BoosN
FlybackN
InvertingN
DoubleN
DivideN
CukN
IsolatedN
Operating Temperature-40°C ~ 85°C
封装 / 箱体
Package / Case
8-TSSOP (0.173", 4.40mm Width)

文档预览

下载PDF文档
S-8533 Series
www.sii-ic.com
© SII Semiconductor Corporation, 2002-2010
STEP-DOWN, SYNCHRONOUS PWM CONTROL
SWITCHING REGULATOR CONTROLLER
Rev.3.0
_01
The S-8533 Series is a synchronous PWM control CMOS step-down switching regulator controller that includes a reference
voltage source, synchronous circuit, oscillation circuit, error amplifier, phase compensation circuit, and PWM controller.
An efficient step-down switching regulator can be realized simply by adding external P-channel and N-channel power MOS
FETs, one coil, and three capacitors.
Since the oscillation frequency is a high 300 kHz, the S-8533 can be used to configure a high efficiency step-down switching
regulator capable of driving high output current using small external parts and a 3 to 10% increase in efficiency is obtained
compared to conventional step-down switching regulators.
The 8-Pin TSSOP package and high oscillation frequency make the S-8533 ideal as the main power supply for portable
devices.
Features
Synchronous rectification system realizing high efficiency (typ. 94%)
Use at maximum duty ratio = 100% and use of a battery up to maximum life is possible by using P-channel and N-
channel power MOS FETs externally.
Oscillation frequency :
300 kHz typ.
Input voltage :
2.7 to 16.0 V
Output voltage :
1.25 V
1.3 to 6.0 V, selectable in 0.1 V steps
Output voltage accuracy :
±2.0%
Soft-start function set by an external capacitor (C
SS
)
Shutdown function
Lead-free, Sn 100%, halogen-free
*1
*1.
Refer to “
Product Name Structure”
for details.
Applications
Constant voltage power supply for hard disks and DVD drivers
Power supplies for portable devices, such as digital cameras, PDAs, electronic organizers, and cellular phones
Main or sub power supply for notebook PCs and peripherals
Constant voltage power supply for cameras, video equipment, and communication equipment
Package
8-Pin TSSOP
1

S-8533A33AFT-TB-G相似产品对比

S-8533A33AFT-TB-G S-8533A125FT-TB-G S-8533A15AFT-TB-G S-8533A18AFT-TB-G S-8533A50AFT-TB-G
描述 IC reg ctrlr buck pwm 8-tssop IC reg ctrlr buck pwm 8-tssop IC reg ctrlr buck pwm 8-tssop IC reg ctrlr buck pwm 8-tssop IC reg ctrlr buck pwm 8-tssop
Standard Package 3,000 3,000 3,000 3,000 3,000
Category Integrated Circuits (ICs) Integrated Circuits (ICs) Integrated Circuits (ICs) Integrated Circuits (ICs) Integrated Circuits (ICs)
Family PMIC - Voltage Regulators - DC DC Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers
系列
Packaging
Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
PWM Type Controlle Controlle Controlle Controlle Controlle
Number of Outputs 1 1 1 1 1
Frequency - Max 345kHz 345kHz 345kHz 345kHz 345kHz
Duty Cycle 100% 100% 100% 100% 100%
Voltage - Supply 2.7 V ~ 16 V 2.7 V ~ 16 V 2.7 V ~ 16 V 2.7 V ~ 16 V 2.7 V ~ 16 V
Buck Yes Yes Yes Yes Yes
Boos N N N N N
Flyback N N N N N
Inverting N N N N N
Double N N N N N
Divide N N N N N
Cuk N N N N N
Isolated N N N N N
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
封装 / 箱体
Package / Case
8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width)
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