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| 型号： | LT3479EDE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV ADJ 3A 14DFN |
| 标准包装： | 91 |
| 类型： | 升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.24 V ~ 42 V |
| 输入电压： | 2.5 V ~ 24 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 3.5MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 14-DFN-EP（4x3） |
| 产品目录页面： | 1331 (CN2011-ZH PDF) |
LT3479
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 2.5V, V SHDN = 2.5V.
PARAMETER
Minimum Input Voltage
Quiescent Current
CONDITIONS
V IN = 2.5V, V SHDN = 0V
V IN = 2.5V, V SHDN = 2.5V, V C = 0.3V (Not Switching)
l
MIN
TYP
2.3
0.1
5
MAX
2.5
1
7.5
UNITS
V
μA
mA
Reference Voltage
Reference Voltage Line Regulation
Measured at V REF Pin
2.5V < V IN < 24V, V C = 0.3V
l
1.216
1.235
0.01
1.250
0.03
V
%/V
Maximum V REF Pin Current
Soft-Start Pin Current
Out of Pin
SS = 0.5V, Out of Pin
9
100
μA
μA
FBP Pin Bias Current
FBN Pin Bias Current
25
25
100
100
nA
nA
Feedback Ampli?er Offset Voltage
FBP – FBN, V C = 1V
–2
2
6
mV
Feedback Ampli?er Voltage Gain
Feedback Ampli?er Transconductance
250
150
V/V
μS
Feedback Ampli?er Sink Current
Feedback Ampli?er Source Current
V FBP = 1.25V, V FBN = 1.5V, V C = 0.5V
V FBP = 1.25V, V FBN = 1V, V C = 0.5V
10
10
μA
μA
Switching Frequency
R T = 17.8k
R T = 113k
R T = 1.78k
0.9
160
2.7
1
200
3.5
1.15
240
4.1
MHz
kHz
MHz
Maximum Switch Duty Cycle
SHDN Pin Current
SHDN Pin Threshold
R T = 17.8k
V SHDN = 5V
V SHDN = 0V
l
84
0.3
93
30
0.1
1.5
60
1
2
%
μA
μA
V
Inductor Current Limit
Switch Current Limit
Switch V CESAT
Switch Leakage Current
(Note 3)
(Note 3)
I SW = 1A (Note 3)
SW = 40V
3.5
3
5
4.5
120
0.2
6.5
6
200
5
A
A
mV
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.
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Inductor Current Limit, Switch Current Limit and Switch V CESAT for
DE package guaranteed by design and/or correlation to static test.
Note 2: The LT3479 is guaranteed to meet performance speci?cations
from 0°C to 70°C. Speci?cations over the –40°C to 85°C operating
3479fc
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3479EDE-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:3A, Full Featured DC/DC Converter with Soft-Start and Inrush Current Protection |
| LT3479EDE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:3A, Full Featured DC/DC Converter with Soft-Start and Inrush Current Protection |
| LT3479EFE | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 2.5V to 24V 16-Pin TSSOP EP |
| LT3479EFE#PBF | 功能描述:IC REG BOOST INV ADJ 3A 16TSSOP 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 |
| LT3479EFE#TR | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 2.5V to 24V 16-Pin TSSOP EP T/R |
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