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| 型号： | LTC3441EDE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC ADJ 12DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.4 V ~ 5.25 V |
| 输入电压： | 2.4 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 1.2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 12-DFN（4x3） |
LTC3441
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3441E is guaranteed to meet performance specifications
from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating
temperature range are assured by design, characterization and correlation
Note 3: Current measurements are preformed when the outputs are not
switching.
Note 4: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125 ° C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may result in device degradation or failure.
with statistical process controls.
TYPICAL PERFOR A CE CHARACTERISTICS
100
Efficiency
V OUT Ripple at 1A Load
90
Burst Mode
80
OPERATION
BUCK
V IN = 4.2V
70
60
50
V IN = 4.2V
V OUT
10mV/DIV
AC-COUPLED
BUCK-BOOST
V IN = 3.3V
40
V IN = 2.7V
V IN = 3.6V
BOOST
V IN = 2.7V
30
20
10
V OUT = 3.3V
0
0.1 1
10
100
1000
L = 4.7 μ H
C OUT = 47 μ F
I OUT = 1A
V OUT = 3.3V
1 μ s/DIV
3441 G02
I OUT (mA)
3441 G17
Load Transient Response,
Switch Pins Entering
V OUT
100mV/DIV
1A
100mA
100mA to 1A
SW1
2V/DIV
SW2
2V/DIV
Switch Pins in Buck-Boost Mode
SW1
2V/DIV
SW2
2V/DIV
Buck-Boost Mode
100 μ s/DIV
3441 G01
V IN = 3.3V
V OUT = 3.3V
50ns/DIV
3441 G03
V IN = 4.2V
V OUT = 3.3V
50ns/DIV
3441 G04
I OUT = 500mA
I OUT = 500mA
3441fa
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3442 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:Micropower Synchronous Buck-Boost DC/DC Converter with Automatic Burst Mode Operation |
| LTC3442EDE | 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 2.4V to 5.5V 12-Pin DFN EP |
| LTC3442EDE#PBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 12DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3442EDE#TR | 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 2.4V to 5.5V 12-Pin DFN EP T/R |
| LTC3442EDE#TRPBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 12DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
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