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| 型号： | LT3580MPMS8E#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV SEPIC 2A 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 升压（升压），反相，Sepic |
| 输出数： | 1 |
| 输入电压： | 2.5 V ~ 32 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 2.5MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP-EP |
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LT3580
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V IN = 5V, V SHDN = V IN unless otherwise noted. (Note 2)
PARAMETER
Operating Voltage Range
CONDITIONS
l
MIN
2.5
TYP
MAX
32
UNITS
V
Positive Feedback Voltage
Negative Feedback Voltage
l
l
1.195
0
1.215
5
1.230
12
V
mV
Positive FB Pin Bias Current
Negative FB Pin Bias Current
V FB = Positive Feedback Voltage, Current Into Pin
V FB = Negative Feedback Voltage, Current Out of Pin
(LT3580E, LT3580I, LT3580MP)
(LT3580H)
l
l
l
81
81
81
83.3
83.3
83.3
85
85.5
86
μA
μA
μA
Error Amplifier Transconductance
Error Amplifier Voltage Gain
230
70
μmhos
V/V
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
V SHDN = 2.5V, Not Switching
V SHDN = 0V
2.5V ≤ V IN ≤ 32V
1
0
0.01
1.5
1
0.05
mA
μA
%/V
Switching Frequency, f OSC
R T = 45.3k (LT3580E, LT3580I, LT3580H)
R T = 45.3k (LT3580MP)
R T = 464k (LT3580E, LT3580I, LT3580H)
R T = 464k (LT3580MP)
l
l
l
l
1.8
1.8
180
180
2
2
200
200
2.2
2.25
220
225
MHz
MHz
kHz
kHz
Switching Frequency in Foldback
Compared to Normal f OSC
1/4
Ratio
Switching Frequency Set Range
SYNCing or Free Running
l
200
2500
kHz
SYNC High Level for Synchronization
SYNC Low Level for Synchronization
l
l
1.3
0.4
V
V
SYNC Clock Pulse Duty Cycle
V SYNC = 0V to 2V
35
65
%
Recommended Minimum SYNC Ratio f SYNC /f OSC
3/4
Minimum Off-Time
Minimum On-Time
60
100
ns
ns
Switch Current Limit
Minimum Duty Cycle (Note3) (LT3580E, LT3580I, LT3580H)
Minimum Duty Cycle (Note3) (LT3580MP)
Maximum Duty Cycle (Notes 3, 4) (LT3580E, LT3580I,
LT3580MP)
Maximum Duty Cycle (Notes 3, 4) (LT3580H)
l
l
l
l
2.2
2.15
1.6
1.55
2.5
2.2
1.9
1.9
2.8
2.8
2.6
2.6
A
A
A
A
Switch V CESAT
I SW = 1.5A
300
mV
Switch Leakage Current
V SW = 5V
0.01
1
μA
Soft-Start Charging Current
SHDN Minimum Input
Voltage High
V SS = 0.5V
Active Mode, SHDN Rising (LT3580E, LT3580I)
Active Mode, SHDN Rising (LT3580H, LT3580MP)
Active Mode, SHDN Falling (LT3580E, LT3580I)
Active Mode, SHDN Falling (LT3580H, LT3580MP)
l
l
l
l
l
4
1.27
1.25
1.24
1.22
6
1.32
1.32
1.29
1.29
8
1.38
1.4
1.33
1.35
μA
V
V
V
V
SHDN Input Voltage Low
SHDN Pin Bias Current
Shutdown Mode
V SHDN = 3V
l
40
0.3
60
V
μA
V SHDN = 1.3V
V SHDN = 0V
9.7
11.6
0
13.4
0.1
μA
μA
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 LT3580E 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
LT3580I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3580H is guaranteed over the full –40°C to
150°C operating junction temperature range. The LT3580MP is guaranteed
over the full –55°C to 125°C operating junction temperature range.
Operating lifetime is derated at junction temperatures greater than 125°C.
Note 3: Current limit guaranteed by design and/or correlation to static test.
Note 4: Current limit measured at equivalent switching frequency of 2.5MHz.
Note 5: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 150°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
3580fg
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3581 | 制造商:LINER 制造商全称:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection |
| LT3581EDE#PBF | 功能描述:IC REG MULTI CONFIG ADJ 14DFN 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 |
| LT3581EDE#TRPBF | 功能描述:IC REG MULTI CONFIG ADJ 14DFN 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 |
| LT3581EDE-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection |
| LT3581EDE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection |
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