Datasheet> 器件分类 > 电源/电源管理> 电源电路> S-8341C51AFT-T2

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S-8341C51AFT-T2: 产品描述Switching Controller, Voltage-mode, 0.1A, 345kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8; 产品类别电源/电源管理电源电路; 文件大小855KB，共53页; 制造商ABLIC

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S-8341C51AFT-T2概述

Switching Controller, Voltage-mode, 0.1A, 345kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8

S-8341C51AFT-T2规格参数

参数名称	属性值
是否Rohs认证	不符合
零件包装代码	SOIC
包装说明	TSSOP,
针数	8
Reach Compliance Code	compliant
ECCN代码	EAR99
其他特性	CAN ALSO OPERATE IN PFM MODE
模拟集成电路 - 其他类型	SWITCHING CONTROLLER
控制模式	VOLTAGE-MODE
控制技术	PULSE WIDTH MODULATION
最大输入电压	6 V
标称输入电压	3.06 V
JESD-30 代码	R-PDSO-G8
长度	4.4 mm
功能数量	1
端子数量	8
最高工作温度	85 °C
最低工作温度	-40 °C
最大输出电流	0.1 A
封装主体材料	PLASTIC/EPOXY
封装代码	TSSOP
封装形状	RECTANGULAR
封装形式	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	NOT SPECIFIED
认证状态	Not Qualified
座面最大高度	1.1 mm
表面贴装	YES
切换器配置	SINGLE
最大切换频率	345 kHz
技术	CMOS
温度等级	INDUSTRIAL
端子形式	GULL WING
端子节距	0.65 mm
端子位置	DUAL
处于峰值回流温度下的最长时间	NOT SPECIFIED
宽度	3 mm
Base Number Matches	1

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Rev.2.2

_00

STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM

SWITCHABLE SWITCHING REGULATOR CONTROLLER

S-8340/8341 Series

The S-8340/8341 Series is a CMOS step-up switching regulator

controller which mainly consists of a reference voltage source,

oscillation circuit, error amplifier, phase compensation circuit, PWM

control circuit (S-8340 Series), and PWM/PFM switching control circuit

(S-8341 Series).

Since the oscillation frequency is a high 300 kHz or 600 kHz, with the

addition of a small external part, the S-8340/8341 Series functions as a

highly efficient step-up switching regulator with a high output current.

The speed of the output stage is enhanced so that the N-channel

power MOS with a low on-resistance can be switched quickly.

The S-8340 Series realizes low ripple, high efficiency, and excellent

transient characteristics thanks to a PMW control circuit capable of

varying the duty ratio linearly from 0 to 82%, optimized error amplifier,

and phase compensation circuit.

The S-8341 Series contains a PWM/PFM switching control circuit so

that it operates using PWM control with a duty ratio of 27% or higher

and using PFM control with a duty ratio of lower than 27% to ensure

high efficiency in all load ranges.

These S-8340/8341 Series serve as ideal main power supply units for

portable devices when coupled with the 8-Pin TSSOP package and

high oscillation frequencies.

Features

•

Oscillation frequency :

600 kHz (A and B types), 300 kHz (C and D types).

Output voltage :

Selectable in 0.1 V steps between 2.5 to 6.0 V (output voltage fixed output type)

Output voltage accuracy :

±2.0%

Output voltage external setting (FB) type available. FB terminal voltage (V

) 1.0 V

External parts :

Coil, diode, capacitors (3), transistor, and resistor only

Duty ratio :

0 to 82% (typ.) PWM control (S-8340 Series)

27 to 82% (typ.) PWM/PFM switching control (S-8341 Series A and B types)

21 to 82% (typ.) PWM/PFM switching control (S-8341 Series C and D types)

Low-voltage operation:

Oscillation guaranteed to start when V

0.9 V

Built-in current limit circuit: Can be set with an external resistor (R

SENSE

)

Soft-start function set by an external capacitor (C

)

Shutdown function

•

Applications

•

Power supplies for portable equipments such as PDAs, electronic notebooks, and cellular phones

Power supplies for audio equipments such as portable CD players, portable MD players, and headphone stereos

Main or local power supplies for notebook PCs and peripherals

Constant voltage power supplies for cameras, VCRs, and communication devices

Package

Package Name

8-Pin TSSOP

Package

FT008-A

Drawing Code

Tape

FT008-E

Reel

FT008-E

Seiko Instruments Inc.

S-8341C51AFT-T2相似产品对比

	S-8341C51AFT-T2	S-8340A34AFT-T2	S-8341B00AFT-T2	S-8341D00AFT-T2	S-8340D00AFT-T2	S-8340B00AFT-T2
描述	Switching Controller, Voltage-mode, 0.1A, 345kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8	Switching Controller, Voltage-mode, 0.1A, 690kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8	Switching Controller, Voltage-mode, 0.1A, 690kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8	Switching Controller, Voltage-mode, 0.1A, 345kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8	Switching Controller, Voltage-mode, 0.1A, 345kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8	Switching Controller, Voltage-mode, 0.1A, 690kHz Switching Freq-Max, CMOS, PDSO8, TSSOP-8
零件包装代码	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC
包装说明	TSSOP,	TSSOP,	TSSOP,	TSSOP,	TSSOP,	TSSOP,
针数	8	8	8	8	8	8
Reach Compliance Code	compliant	compliant	unknown	unknown	unknown	unknown
ECCN代码	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
其他特性	CAN ALSO OPERATE IN PFM MODE	CAN ALSO OPERATE IN PFM MODE	CAN ALSO OPERATE IN PFM MODE	CAN ALSO OPERATE IN PFM MODE	CAN ALSO OPERATE IN PFM MODE	CAN ALSO OPERATE IN PFM MODE
模拟集成电路 - 其他类型	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
控制模式	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE
控制技术	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
最大输入电压	6 V	6 V	6 V	6 V	6 V	6 V
标称输入电压	3.06 V	2.04 V	2.4 V	2.4 V	2.4 V	2.4 V
JESD-30 代码	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
长度	4.4 mm	4.4 mm	4.4 mm	4.4 mm	4.4 mm	4.4 mm
功能数量	1	1	1	1	1	1
端子数量	8	8	8	8	8	8
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
最大输出电流	0.1 A	0.1 A	0.1 A	0.1 A	0.1 A	0.1 A
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	TSSOP	TSSOP	TSSOP	TSSOP	TSSOP	TSSOP
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.1 mm	1.1 mm	1.1 mm	1.1 mm	1.1 mm	1.1 mm
表面贴装	YES	YES	YES	YES	YES	YES
切换器配置	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE
最大切换频率	345 kHz	690 kHz	690 kHz	345 kHz	345 kHz	690 kHz
技术	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
端子节距	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
宽度	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm
厂商名称	-	ABLIC	ABLIC	ABLIC	ABLIC	ABLIC

S-8341C51AFT-T2

S-8341C51AFT-T2概述

S-8341C51AFT-T2规格参数

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S-8341C51AFT-T2相似产品对比

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