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SC1454AIMSTR PDF预览

SC1454AIMSTR

更新时间: 2024-11-06 13:13:15
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器
页数 文件大小 规格书
14页 298K
描述
Fixed Positive LDO Regulator, 2 Output, 1.8V1, 1.8V2, CMOS, PDSO8, MO-187AA, MSOP-8

SC1454AIMSTR 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:TSSOP, TSSOP8,.19针数:8
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.92
可调性:FIXED/ADJUSTABLE最大回动电压 1:0.27 V
标称回动电压 1:0.27 V最大回动电压 2:0.27 V
最大绝对输入电压:7 V最大输入电压:5.5 V
最小输入电压:2.8 VJESD-30 代码:S-PDSO-G8
JESD-609代码:e0长度:3 mm
最大电网调整率:0.012%最大负载调整率:0.03%
功能数量:1输出次数:2
端子数量:8工作温度TJ-Max:125 °C
工作温度TJ-Min:-40 °C最大输出电流 1:0.15 A
最大输出电流 2:0.15 A最大输出电压 1:1.836 V
最小输出电压 1:1.764 V标称输出电压 1:1.8 V
最大输出电压 2:1.836 V最小输出电压 2:1.764 V
标称输出电压 2:1.8 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
包装方法:TAPE AND REEL峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified调节器类型:FIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR
座面最大高度:1.1 mm子类别:Other Regulators
表面贴装:YES技术:CMOS
端子面层:TIN LEAD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

SC1454AIMSTR 数据手册

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SC1454  
Dual 150mA Ultra Low  
Dropout, Low Noise Regulator  
POWER MANAGEMENT  
Description  
Features  
The SC1454 contains two ultra low dropout voltage  
regulators (ULDOs). It operates from an input voltage  
range of 2.25V to 6.5V, and a wide variety of output  
voltage options are available. One ULDO has a fixed  
output, and the other is either fixed (SETA pin grounded)  
or adjustable using external resistors. Each ULDO has an  
independent enable pin.  
u Up to 150mA per regulator output  
u Low quiescent current  
u Low dropout voltage  
u Stable operation with ceramic caps  
u Very low 50µVRMS output noise  
u Wide selection of output voltages  
u Tight load and line regulation  
u Current and thermal limiting  
u Reverse input polarity protection  
u <1.5uA off-mode current  
The SC1454 has a bypass pin to enable the user to  
capacitively decouple the bandgap reference for very low  
output noise (50µVRMS typically).  
u Logic controlled enable  
Designed specifically for battery operated systems, the  
devices utilize CMOS technology to require very low  
operating currents (typically 130µA with both outputs  
supplying 150mA). In addition, the dropout voltage is  
typically 155mV at 150mA, helping to prolong battery  
life further. The devices are designed to provide 400mA  
of peak current for applications which require high initial  
inrush current.  
Applications  
u Cellular telephones  
u Palmtop/Laptop computers  
u Battery-powered equipment  
u Bar code scanners  
u SMPS post regulator/dc to dc modules  
u High efficiency linear power supplies  
They have been designed to be used with low ESR  
ceramic capacitors to save cost and PCB area.  
The SC1454 is available with a wide variety of voltage  
options as standard. It comes in the tiny 8 lead MSOP  
surface mount package.  
Typical Application Circuit  
U1 SC1454DIMS  
1
2
3
4
8
OUTPUT A: 3.0V  
OUTPUT B: 3.0V  
VIN  
OUTA  
OUTB  
GND  
IN  
ENA  
BYP  
ENB  
7
6
5
ENABLE OUTPUT A  
ENABLE OUTPUT B  
SETA  
C1  
1uF  
C2  
1uF  
C3  
10nF  
C4  
1uF  
U1 SC1454CIMS  
1
8
7
6
5
OUTPUT A: 2.5V  
VIN  
OUTA  
OUTB  
GND  
IN  
ENA  
BYP  
ENB  
2
3
4
OUTPUT B: 2.8V  
ENABLE OUTPUT A  
R1  
100k  
ENABLE OUTPUT B  
SETA  
R2  
100k  
C1  
1uF  
C2  
1uF  
C3  
10nF  
C4  
1uF  
1
www.semtech.com  
Revision 1, November 2000  

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