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L5953

更新时间: 2024-02-27 07:39:53
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 开关
页数 文件大小 规格书
24页 219K
描述
MULTIPLE SWITCHING VOLTAGE REGULATOR

L5953 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:LEAD FREE, SOP-36
针数:36Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.82模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:18 V最小输入电压:6 V
标称输入电压:14.4 VJESD-30 代码:R-PDSO-G36
JESD-609代码:e3长度:15.9 mm
功能数量:1端子数量:36
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:1.2 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP36,.56
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, 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:3.6 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:425 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)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:11 mm
Base Number Matches:1

L5953 数据手册

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L5953  
MULTIPLE SWITCHING VOLTAGE REGULATOR  
PRODUCT PREVIEW  
PWM: ADJUSTABLE 2.5/10V - 1A  
SWITCHING VOLTAGE REGULATOR  
EXTERNAL POWER MOS ABILITY FOR  
OUTPUT CURRENT ENHANCEMENT  
SYNCHRONIZATION FUNCTION  
REG1- LINEAR LOW DROP 3.3/5V - 250mA  
STBY VOLTAGE REGULATOR (LOW  
CURRENT CONSUMPTION) with RESET  
REG2- LINEAR VOLTAGE REGULATOR 1.5V  
to 3.3V EXTERNALLY ADJUSTABLE - 300mA  
MAXIMUM CURRENT  
PowerSO36  
ORDERING NUMBER: L5953  
– HSD1 & HSD2 short to gnd, open load and  
short to battery (Test mode)  
– Thermal warning  
HSD1 : 500mA HIGH SIDE DRIVER  
HSD2 : 200mA HIGH SIDE DRIVER  
SPI INTERFACE  
PROTECTIONS  
SPI DIAGNOSTICS HSD1, HSD2  
DOUBLE SWITCHING FREQUENCY SPI  
SELECTABLE  
OVERVOLTAGE PROTECTION  
INTERNAL CURRENT LIMITING  
THERMAL SHUTDOWN  
ESD  
DOUBLE INPUT LVW  
SPI FUNCTIONS  
INPUT CONTROLS  
DESCRIPTION  
The L5953 is the integration of one switching regula-  
tor, two linear voltage regulators, two low voltage  
warnings and two high side drivers. It has a stand-by  
operation mode (low current consumption) where  
only the stand-by voltage regulator plus the low volt-  
age warnings are active. The other regulators and  
high side drivers are controlled by the SPI interface.  
– Turn-on/off PWM  
– Turn-on/off REG2  
– Turn-on/off HSD1  
– Turn-on/off HSD2  
– Switching frequency selection f1- f2  
OUTPUT FUNCTIONS:  
BLOCK DIAGRAM  
S1  
W1  
S2  
W2  
VDD-LIN  
VDD-SW  
STCAP  
CT  
RES  
FGND  
REC1  
VSTBY  
ADJ  
ST-BY LINEAR VOLTAGE  
REGULATOR  
VOLTAGE WARNING  
HSD1  
3.3-5V/250mA  
HSD1  
HSD2  
PWM  
STRAP  
STEP DOWN  
REGULATOR  
2.5-10V/1A  
HSD2  
DRAINOUT  
VSW  
GATEIN  
GATEOUT  
FB  
COMP  
REC2  
VSPI  
IRQ  
LINEAR VOLTAGE  
REGULATOR  
1.5-3.3V/300mA  
SPI INTERFACE  
OSCILLATOR &  
SYNC  
SWGND  
GND  
D01AU1330A  
Q
D
S
C
VLR  
FBLR  
VIN  
SYNC  
DGND  
September 2003  
1/24  
This is preliminary information on a new product now in development. Details are subject to change without notice.  

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