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| 型号： | LT3970HMS-3.3#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 3.3V 0.35A 10MSOP |
| 标准包装： | 50 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 4.2 V ~ 40 V |
| PWM 型： | 电流模式，Burst Mode? |
| 频率 - 开关： | 200kHz ~ 2.25MHz |
| 电流 - 输出： | 350mA |
| 同步整流器： | 无 |
| 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） |
| 包装： | 管件 |
| 供应商设备封装： | 10-MSOP |
LT3970 Series
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 LT3970E is guaranteed to meet performance specifications
from 0°C to 125°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization, and correlation with statistical process controls. The
LT3970I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3970H is guaranteed over the full –40°C to
150°C operating junction temperature range. High junction temperatures
degrade operating lifetimes. Operating lifetime is derated at junction
temperatures greater than 125°C.
Note 3: Bias current flows into the FB pin.
Note 4: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C, unless otherwise noted.
90
Efficiency, V OUT = 3.3V
90
Efficiency, V OUT = 5V
FRONT PAGE APPLICATION
1.220
LT3970 Feedback Voltage
80
70
60
V IN = 24V
V IN = 12V
V IN = 36V
80
70
60
V IN = 24V
V IN = 12V
V IN = 36V
1.215
1.210
50
40
30
20
0.01
0.1
FRONT PAGE APPLICATION
V OUT = 3.3V
R1 = 1M
R2 = 576k
1 10 100
LOAD CURRENT (mA)
3970 G01
50
40
30
0.01
0.1
1 10
LOAD CURRENT (mA)
100
3970 G02
1.205
1.200
1.195
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
3970 G03
3.32
3.31
3.30
3.29
3.28
LT3970-3.3 Output Voltage
3.44
3.43
3.42
3.41
3.40
LT3970-3.42 Output Voltage
5.04
5.02
5.00
4.98
4.96
LT3970-5 Output Voltage
3.27
–50 –25
0
25
50
75
100 125 150
3.39
–50
–25
0
25
50
75
100
125
4.94
–50 –25
0
25
50
75
100 125 150
4
TEMPERATURE (°C)
3970 G04
TEMPERATURE (°C)
3970 G05
TEMPERATURE (°C)
3970 G06
3970fc
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3970HMS-5#PBF | 功能描述:IC REG BUCK 5V 0.35A 10MSOP 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 |
| LT3970HMS-5#TRPBF | 功能描述:IC REG BUCK 5V 0.35A 10MSOP 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 |
| LT3970HMS-5-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:40V, 350mA Step-Down Regulator with 2.5μA Quiescent Current and Integrated Diodes |
| LT3970HMS-5-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:40V, 350mA Step-Down Regulator with 2.5μA Quiescent Current and Integrated Diodes |
| LT3970IDDB#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 4.2V to 40V 10-Pin DFN EP 制造商:Linear Technology 功能描述:Bulk |
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