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A5972D013TR PDF预览

A5972D013TR

更新时间: 2024-02-28 03:04:58
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
12页 698K
描述
2A switch step down switching regulator for automotive applications

A5972D013TR 技术参数

是否Rohs认证:符合生命周期:Active
零件包装代码:SOIC包装说明:LEAD FREE, SOP-8
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:10 weeks风险等级:1.68
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE FREQUENCY MODULATION
最大输入电压:36 V最小输入电压:4.4 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G8
长度:4.9 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:3 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:280 kHz
技术:DMOS温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

A5972D013TR 数据手册

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A5972D  
2A switch step down switching regulator  
for automotive applications  
Features  
Qualified following the AEC-Q100  
requirements (temperature Grade 3), see  
PPAP for more details.  
Temperature range -40 °C to 85 °C  
1.5 A DC output current  
SO8  
Operating input voltage from 4.4 V to 36 V  
Output voltage adjustable from 1.235 V to 35 V  
Low dropout operation: 100% duty cycle  
250 kHz internally fixed frequency  
Voltage feedforward  
Description  
The A5972D is a step down monolithic power  
switching regulator with a minimum switch current  
limit of 2 A so it is able to deliver more than 1.5 A  
DC current to the load depending on the  
application conditions.  
Zero load current operation  
The output voltage can be set from 1.235 V  
to 35 V. The device uses an internal P-channel D-  
MOS transistor (with a typical Rdson of 250 m)  
as switching element to minimize the size of the  
external components.  
Internal current limiting  
Protection against feedback disconnection  
Thermal shutdown  
An internal oscillator fixes the switching frequency  
at 250 kHz.  
Applications  
Dedicated to automotive applications  
Having a minimum input voltage of 4.4 V only, it is  
particularly suitable for 5 V bus.  
Pulse by pulse current limit with the internal  
frequency modulation offers an effective constant  
current short circuit protection.  
Figure 1.  
Typical application  
L1  
33uH  
VIN=4.4V to 35V  
VOUT=3.3V  
OUT  
VCC  
C2  
COMP  
100uF  
R1  
C4  
D1  
A5972D  
5.6K  
22nF  
C1  
STPS2L40U  
10uF  
FB  
GND  
C3  
4.7KΩ  
220pF  
R2  
R3  
3.3K  
November 2007  
Rev 2  
1/12  
www.st.com  
1

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