ST730AB,ST730AB pdf中文资料,ST730AB引脚图,ST730AB电路-Datasheet-电子工程世界

Datasheet> 器件分类 > ST730AB

文档预览

ST730AB: 产品描述5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS; 文件大小183KB，共9页; 制造商ST(意法半导体); 官网地址http://www.st.com/

下载文档选型对比全文预览

ST730AB概述

5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS

文档预览

下载PDF文档

全文
预览

ST730A

5V STEP-DOWN,

CURRENT-MODE PWM DC-DC CONVERTERS

UP TO 450mA LOAD CURRENTS

200kHz HIGH-FREQUENCY

CURRENT-MODE PWM

85% TO 96% EFFICIENCIES

33µH OR 100µH PRE-SELECTED

INDUCTOR VALUE, NO COMPONENT

DESIGN REQUIRED

0.8mA QUIESCENT CURRENT

0.3µA SHUTDOWN SUPPLY CURRENT

ADJUSTABLE OUTPUT VOLTAGE

OVERCURRENT, SOFT-START AND

UNDERVOLTAGE LOCKOUT PROTECTION

CYCLE-BY-CYCLE CURRENT LIMITING

PACKAGE AVAILABLE: DIP-8 AND SO-8

DIP-8

SO-8

DESCRIPTION

The ST730A is a 5V output CMOS, step-down

switching regulator. The ST730A accepts inputs

between 5.2V and 11V and delivers 450mA.

Typical efficiencies are 85% to 96%.

Quiescent supply current is 0.8mA and only 0.3µA

in shutdown mode. The output does not exhibit

frequency over this specified range. Pulse-width

modulation (PWM) current-mode control provides

SCHEMATIC DIAGRAM

precise output regulation and excellent transient

responses.

Output

voltage

accuracy

guaranteed to be ±5% over line, load, and

temperature varations.

Fixed-frequency switching and absence of

subharmonic ruipple allows easy filtering of output

ripple and noise, as well as the use of small

external components. This regulators require only

a single inductor value to work in most

applications, so no inductor design is necessary.

Typical applications are: Cellular phones & radios,

portable Instruments, Portable Communications

Equipments and Computer Peripherals.

January 2003

1/9

ST730AB相似产品对比

	ST730AB	ST730	ST730ACN	ST730AC	ST730ABN	ST730ABD	ST730ACD-TR	ST730A	ST730ABD-TR
描述	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS	5V STEP-DOWN, CURRENT-MODE PWM DC-DC CONVERTERS
是否Rohs认证	-	-	符合	-	符合	符合	符合	-	符合
零件包装代码	-	-	DIP	-	DIP	SOIC	SOIC	-	SOIC
包装说明	-	-	DIP, DIP8,.3	-	DIP, DIP8,.3	SO-8	SOP, SOP8,.25	-	SO-8
针数	-	-	8	-	8	8	8	-	8
Reach Compliance Code	-	-	compli	-	compli	compli	compli	-	compli
ECCN代码	-	-	EAR99	-	EAR99	EAR99	EAR99	-	EAR99
模拟集成电路 - 其他类型	-	-	SWITCHING REGULATOR	-	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	-	SWITCHING REGULATOR
控制模式	-	-	CURRENT-MODE	-	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	-	CURRENT-MODE
控制技术	-	-	PULSE WIDTH MODULATION	-	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	-	PULSE WIDTH MODULATION
最大输入电压	-	-	11 V	-	11 V	11 V	11 V	-	11 V
最小输入电压	-	-	4 V	-	4 V	4 V	4 V	-	4 V
标称输入电压	-	-	5 V	-	5 V	5 V	5 V	-	5 V
JESD-30 代码	-	-	R-PDIP-T8	-	R-PDIP-T8	R-PDSO-G8	R-PDSO-G8	-	R-PDSO-G8
JESD-609代码	-	-	e3	-	e3	e4	e4	-	e4
功能数量	-	-	1	-	1	1	1	-	1
端子数量	-	-	8	-	8	8	8	-	8
最高工作温度	-	-	70 °C	-	85 °C	85 °C	70 °C	-	85 °C
最大输出电流	-	-	2 A	-	2 A	2 A	2 A	-	2 A
封装主体材料	-	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY
封装代码	-	-	DIP	-	DIP	SOP	SOP	-	SOP
封装等效代码	-	-	DIP8,.3	-	DIP8,.3	SOP8,.25	SOP8,.25	-	SOP8,.25
封装形状	-	-	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	-	RECTANGULAR
封装形式	-	-	IN-LINE	-	IN-LINE	SMALL OUTLINE	SMALL OUTLINE	-	SMALL OUTLINE
峰值回流温度（摄氏度）	-	-	NOT SPECIFIED	-	NOT SPECIFIED	NOT SPECIFIED	260	-	NOT SPECIFIED
认证状态	-	-	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	-	Not Qualified
座面最大高度	-	-	4.8 mm	-	4.8 mm	1.75 mm	1.75 mm	-	1.75 mm
表面贴装	-	-	NO	-	NO	YES	YES	-	YES
切换器配置	-	-	BUCK	-	BUCK	BUCK	BUCK	-	BUCK
最大切换频率	-	-	220 kHz	-	280 kHz	280 kHz	220 kHz	-	280 kHz
技术	-	-	CMOS	-	CMOS	CMOS	CMOS	-	CMOS
温度等级	-	-	COMMERCIAL	-	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	-	INDUSTRIAL
端子面层	-	-	Matte Tin (Sn)	-	Matte Tin (Sn)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	-	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式	-	-	THROUGH-HOLE	-	THROUGH-HOLE	GULL WING	GULL WING	-	GULL WING
端子节距	-	-	2.54 mm	-	2.54 mm	1.27 mm	1.27 mm	-	1.27 mm
端子位置	-	-	DUAL	-	DUAL	DUAL	DUAL	-	DUAL
处于峰值回流温度下的最长时间	-	-	NOT SPECIFIED	-	NOT SPECIFIED	NOT SPECIFIED	30	-	NOT SPECIFIED
宽度	-	-	7.62 mm	-	7.62 mm	3.9 mm	3.9 mm	-	3.9 mm

ST730AB

ST730AB概述

文档预览

ST730AB相似产品对比

推荐资源