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LTC1751EMS8#TRPBF PDF预览

LTC1751EMS8#TRPBF

更新时间： 2024-01-29 19:21:10
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
12页 212K
描述
LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC1751EMS8#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP, TSSOP8,.19
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：6.92模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR
最大输入电压：5.5 V最小输入电压：2 V
标称输入电压：2.7 VJESD-30 代码：S-PDSO-G8
JESD-609代码：e3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：85 °C
最低工作温度：-40 °C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
表面贴装：YES切换器配置：DOUBLER INVERTER
最大切换频率：800 kHz技术：CMOS
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：30
宽度：3 mmBase Number Matches：1

LTC1751EMS8#TRPBF 数据手册

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LTC1751/LTC1751-3.3/LTC1751-5  
Micropower, Regulated  
Charge Pump  
DC/DC Converters  
U
FEATURES  
DESCRIPTIO  
The LTC®1751 family are micropower charge pump DC/  
DC converters that produce a regulated output voltage at  
up to 100mA. The input voltage range is 2V to 5.5V.  
Extremely low operating current (20µA typical with no  
load) and low external parts count (one flying capacitor  
and two small bypass capacitors at VIN and VOUT) make  
them ideally suited for small, battery-powered applica-  
tions.  
The LTC1751 family operate as Burst ModeTM switched  
capacitor voltage doublers to achieve ultralow quiescent  
current. They have thermal shutdown capability and can  
survive a continuous short circuit from VOUT to GND. The  
PGOOD pin on the LTC1751-3.3 and LTC1751-5 indicates  
when the output voltage has reached its final value and if  
the output has an undervoltage fault condition. The FB pin  
of the adjustable LTC1751 can be used to program the  
desired output voltage or current. An optional soft-start  
capacitor may be used at the SS pin to prevent excessive  
inrush current during start-up.  
■
5V Output Current: 100mA (VIN ≥ 3V)  
■
3.3V Output Current: 80mA (VIN ≥ 2.5V)  
■
Ultralow Power: 20µA Quiescent Current  
■
Regulated Output Voltage: 3.3V ±4%, 5V ±4%, ADJ  
■
No Inductors  
■
Short-Circuit/Thermal Protection  
■
VIN Range: 2V to 5.5V  
■
800kHz Switching Frequency  
■
Very Low Shutdown Current: <2µA  
■
Shutdown Disconnects Load from VIN  
■
PowerGood/Undervoltage Output  
■
Adjustable Soft-Start Time  
■
Available in an 8-Pin MSOP Package  
U
APPLICATIO S  
■
Li-Ion Battery Backup Supplies  
■
Local 3V and 5V Conversion  
■
Smart Card Readers  
■
PCMCIA Local 5V Supplies  
The LTC1751 family is available in an 8-pin MSOP  
package.  
■
White LED Backlighting  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Burst Mode is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Output Voltage vs Input Voltage  
5.2  
I
C
C
= 50mA  
= 1µF  
OUT  
OUT  
FLY  
Regulated 5V Output from a 2.7V to 5.5V Input  
= 10µF  
5.1  
5.0  
4.9  
V
IN  
3
7
8
4
2
1
6
5
V
OUT  
2.7V  
V
V
OUT  
T
A
= 85°C  
IN  
5V ±4%  
R1  
C2  
10µF  
C1  
10µF  
TO 5.5V  
T
= 25°C  
I
I
≤ 100mA, V ≥ 3V  
≤ 50mA, V ≥ 2.7V  
A
OUT  
OUT  
IN  
IN  
100k  
OFF ON  
PGOOD  
SHDN PGOOD  
LTC1751-5  
+
SS  
C
T
= –40°C  
A
C
FLY  
1µF  
–
GND  
C
1751 TA01  
C
= MURATA GRM39X5R105K6.3AJ  
FLY  
4.8  
C1, C2 = MURATA GRM40X5R106K6.3AJ  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
INPUT VOLTAGE (V)  
1751 TA02  
1
1234567...12

中文翻译

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LTC1751EMS8#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1751EMS8#PBF Linear

完全替代

 LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters; Package: MSOP; Pins: 8; Temp

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