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LTC1551LCS8 PDF预览

LTC1551LCS8

更新时间： 2024-11-08 22:57:35
品牌 Logo 应用领域
凌特 - Linear 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高压
页数 文件大小 规格书
12页 274K
描述
Low Noise, Switched Capacitor Regulated Voltage Inverters

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中文翻译

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LTC1551LCS8 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.1Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR最大输入电压：5.25 V
最小输入电压：2.7 V标称输入电压：5 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：4.9025 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：70 °C最低工作温度：
最大输出电流：0.02 A标称输出电压：-4.5 V
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）：235
认证状态：Not Qualified座面最大高度：1.752 mm
子类别：Other Analog ICs表面贴装：YES
切换器配置：DOUBLER INVERTER最大切换频率：900 kHz
技术：CMOS温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)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：20宽度：3.899 mm
Base Number Matches：1

LTC1551LCS8 数据手册

 浏览型号LTC1551LCS8的Datasheet PDF文件第2页浏览型号LTC1551LCS8的Datasheet PDF文件第3页浏览型号LTC1551LCS8的Datasheet PDF文件第4页浏览型号LTC1551LCS8的Datasheet PDF文件第5页浏览型号LTC1551LCS8的Datasheet PDF文件第6页浏览型号LTC1551LCS8的Datasheet PDF文件第7页 
LTC1550L/LTC1551L  
Low Noise, Switched  
Capacitor Regulated  
Voltage Inverters  
U
DESCRIPTIO  
FEATURES  
The LTC®1550L/LTC1551L are switched capacitor charge  
pump voltage inverters which include internal linear post-  
regulators to minimize output ripple. The LTC1550L fixed  
output voltage versions include–4.1V, –2.5Vand–2Vwith  
ripple voltages typically below 1mVP-P. The LTC1550L is  
also available in an adjustable output voltage version. The  
LTC1550L/LTC1551L are ideal for use as bias voltage  
generators for GaAs transmitter FETs in portable RF and  
cellular telephone applications.  
■
Regulated Negative Voltage from a Single  
Positive Supply  
■
Low Output Ripple: Less Than 1mVP-P Typ  
■
High Charge Pump Frequency: 900kHz  
■
Small Charge Pump Capacitors: 0.1µF  
■
Requires Only Four External Capacitors  
■
Fixed –4.1V, –2.5V, –2V or Adjustable Output  
■
Shutdown Mode Drops Supply Current to <1µA  
■
High Output Current: Up to 20mA (Depending on  
VCC to VOUT Range)  
The LTC1550L/LTC1551L operate from single 2.7V to  
5.5V supplies and draw typical quiescent currents of  
3.5mA with a 5V supply. Each device includes a TTL  
compatible Shutdown pin which drops supply current to  
0.2µA typically. The LTC1550L Shutdown pin is active low  
(SHDN), while the LTC1551L Shutdown pin is active high  
(SHDN). Only four external components are required: an  
inputbypasscapacitor, two 0.1µF charge pump capacitors  
and a filter capacitor at the linear regulator output. The  
adjustable LTC1550L/LTC1551L require two additional re-  
sistors to set the output voltage. The LTC1550L/LTC1551L  
will supply up to 20mA (depending on VCC to VOUT range),  
while maintaining guaranteed output regulation of ±2.5%.  
■
Output Regulation: 2.5% Over Line, Load and  
Temperature  
■
Available in 8-Lead MSOP, 8-Lead Narrow SO and  
16-Lead Narrow SSOP  
U
APPLICATIO S  
■
GaAs FET Bias Generators  
■
Negative Supply Generators  
■
Battery-Powered Systems  
Single Supply Applications  
■
Both fixed voltage and adjustable LTC1550L/LTC1551L  
are available in 8-lead MSOP and SO plastic packages: the  
adjustable LTC1550L is also available in a 16-pin SSOP  
with the REG pin.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
VOUT Output Noise and Ripple  
R1  
10k  
1
2
8
7
3.6V  
POWER VALID  
SHDN  
REG  
V
CP  
OUT  
CC  
+
2.2µF  
IN  
C
CP  
0.1µF  
VOUT  
AC COUPLED  
2mV/DIV  
LTC1550L-2  
C
3
4
6
+
C1  
GND  
5
–
V
C1  
OUT  
V
LOAD  
= –2V  
= 5mA  
OUT  
I
C
C
OUT  
L
+
10µF  
0.1µF  
C1  
0.1µF  
1550L/51L TA01  
5µs/DIV  
1550L/51L TA01a  
Figure 1. –2V Generator with 1mVP-P Noise  
1
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中文翻译

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