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参数资料
| 型号： | LT3681EDE |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 4.4 A SWITCHING REGULATOR, 3100 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | 4 X 3 MM, PLASTIC, DFN-14 |
| 文件页数： | 18/24页 |
| 文件大小： | 367K |
| 代理商： | LT3681EDE |
LT3681
3
3681f
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Schottky Diode Forward Voltage
IDA = 1A
IDA = 2A
0.50
0.56
V
Power Schottky Diode Leakage Current
VDC-DA = 40V
100
μA
Switching Frequency
RT = 8.66k
RT = 29.4k
RT = 187k
2.5
1.25
250
2.8
1.4
300
3.1
1.55
350
MHz
kHz
Minimum Switch Off-Time
●
130
200
nS
Switch Current Limit
Duty Cycle = 5%
3.2
3.8
4.4
A
Switch VCESAT
ISW = 2A
360
mV
Boost Schottky Reverse Leakage
VSW = 10V, VBIAS = 0V
0.02
2
A
Minimum Boost Voltage (Note 4)
●
1.5
2.1
V
BOOST Pin Current
ISW = 1A
18
35
mA
RUN/SS Pin Current
VRUN/SS = 2.5V
5
10
μA
RUN/SS Input Voltage High
2.5
V
RUN/SS Input Voltage Low
0.2
V
PG Threshold Offset from Feedback Voltage
VFB Rising
122
mV
PG Hysteresis
5
mV
PG Leakage
VPG = 5V
0.1
1
μA
PG Sink Current
VPG = 3V
●
100
600
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 LT3681E is guaranteed to meet performance specications
from 0°C to 85°C. Specications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Bias current ows into the FB pin.
Note 4: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
The
● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 10V, VRUNS/SS = 10V VBOOST = 15V, VBIAS = 3.3V unless otherwise
noted. (Note 2)
ELECTRICAL CHARACTERISTICS
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相关代理商/技术参数 |
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|---|---|
| LT3681EDE#PBF | 功能描述:IC REG BUCK ADJ 2A 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 |
| LT3681EDE#PBF | 制造商:Linear Technology 功能描述:IC STEP-DOWN REGULATOR DFN-14 |
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| LT3681EDEPBF | 制造商:Linear Technology 功能描述:36V 2.8MHz Step-Down Regulator LT3681 |
| LT3682 | 制造商:LINER 制造商全称:Linear Technology 功能描述:42V, 750mA Step-Down Regulator with 2.5μA |
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