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LP2975IMM-3.3 PDF预览

LP2975IMM-3.3

更新时间: 2024-11-22 22:55:47
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器控制器
页数 文件大小 规格书
19页 718K
描述
MOSFET LDO Driver/Controller

LP2975IMM-3.3 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:MINI, SO-8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.02模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:S-PDSO-G8JESD-609代码:e0
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电压:23 V最小输出电压:1.24 V
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP8,.19封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.1 mm
子类别:Other Analog ICs最大供电电压 (Vsup):24 V
标称供电电压 (Vsup):15 V表面贴装:YES
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn/Pb)
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:40
宽度:3 mmBase Number Matches:1

LP2975IMM-3.3 数据手册

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September 1997  
LP2975  
MOSFET LDO Driver/Controller  
General Description  
Features  
n Simple to use, few external components  
n Ultra-small mini SO-8 package  
A high-current LDO regulator is simple to design with the  
LP2975 LDO Controller. Using an external P-FET, the  
LP2975 will deliver an ultra low dropout regulator with ex-  
tremely low quiescent current.  
n 1.5% (A grade) precision output voltage  
n Low-power shutdown input  
High open loop gain assures excellent regulation and ripple  
rejection performance.  
<
n
1 µA in shutdown  
@
n Low operating current (180 µA typical VIN = 5V)  
n Wide supply voltage range (1.8V to 24V)  
n Built-in current limit amplifier  
The trimmed internal bandgap reference provides precise  
output voltage over the entire operating temperature range.  
Dropout voltage is “user selectable” by sizing the external  
FET: the minimum input-output voltage required for opera-  
tion is the maximum load current multiplied by the RDS(ON)  
of the FET.  
n Overtemperature protection  
n 12V, 5V, and 3.3V standard output voltages  
n Can be programmed using external divider  
n −40˚C to +125˚C junction temperature range  
Overcurrent protection of the external FET is easily imple-  
mented by placing a sense resistor in series with VIN. The  
57 mV detection threshold of the current sense circuitry mini-  
mizes dropout voltage and power dissipation in the resistor.  
Applications  
n High-current 5V to 3.3V regulator  
n Post regulator for switching converter  
n Current-limited switch  
The standard product versions available provide output volt-  
ages of 12V, 5V, or 3.3V with guaranteed 25˚C accuracy of  
1.5% (“A” grade) and 2.5% (standard grade).  
Block Diagram  
Connection Diagram  
Surface Mount Mini SO-8 Package  
DS100034-2  
Top View  
For Order Numbers  
See Table 1 of this Document  
See NS Package Number MUA08A  
DS100034-1  
*R  
values are: 208k for 12V part, 72.8k for 5V part, and 39.9k for 3.3V  
SET  
part.  
© 1999 National Semiconductor Corporation  
DS100034  
www.national.com  

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