参数资料
| 型号： | LT3686HDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1.2A 10DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 30 V |
| 输入电压： | 3.6 V ~ 37 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 300kHz ~ 2.5MHz |
| 电流 - 输出： | 1.2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
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LT3686
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications ar e at T A = 25°C. V IN = 10V, V EN/UVLO ≥ 1.32V.
PARAMETER
Quiescent Current at Shutdown
Quiescent Current
Internal Undervoltage Lockout
Overvoltage Lockout
Feedback Voltage
Feedback Voltage Line Regulation
FB Pin Bias Current
Switching Frequency
Minimum On Time
Minimum Off Time
Switch V CESAT
CONDITIONS
V EN/UVLO < 0.4V
V EN/UVLO = 1V
Not Switching, MODE ≤ 0.4V
Not Switching, MODE ≥ 0.8V
V IN = 3.6V ? 37V
I DA < 1.2A
R T = 15.4kΩ
R T = 100kΩ
R T = 267kΩ
I SW = 1.2A
l
l
MIN
37
0.790
0.785
0.3
1.9
TYP
0.1
10
1.1
1.2
3.4
38
0.8
0.8
0.0012
20
2.1
670
300
100
150
680
MAX
1
15
1.3
1.4
3.6
39
0.810
0.815
100
2.5
2.3
110
200
UNITS
μA
μA
mA
mA
V
V
V
V
%/V
nA
MHz
MHz
kHz
kHz
ns
ns
mV
Switch Current Limit
Switch Active Current
(Note 3)
SW = 10V (Note 4)
SW = 0V (Note 5)
l
1.9
1.85
2.3
2.3
400
20
2.6
2.65
600
30
A
A
μA
μA
BOOST Pin Current
I SW = 1.2A
20
mA
Minimum Boost Voltage Above Switch
I SW = 1.2A
2.2
2.4
V
Max BD Pin Active Load Current
BD Pin Active Load Disable Threshold
DA Pin Current to Stop OSC
MODE > 0.8V, BD < 5.2V
l
l
30
5.2
1.2
40
6.5
1.7
mA
V
A
MODE High
MODE Low
MODE Pin Bias Current
SS Threshold
l
l
0.8
0.9
0.4
0.1
V
V
μA
V
SS Source Current
EN/UVLO Bias Current
EN/UVLO Threshold to Turn Off
EN/UVLO Hysteresis Current
Boost Diode Forward Drop
V SS = 1V
V EN/UVLO = 10V
V EN/UVLO = 0V
I BD to I BOOST = 200mA
l
1.3
1.22
1.8
2
1.27
2.4
0.85
2.7
40
1
1.32
3
μA
μA
μA
V
μA
V
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 LT3686E 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
LT3686I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3686H is guaranteed over the full –40°C to
150°C operating junction temperature range.
Note 3: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
Note 4: Current flows into pin.
Note 5: Current flows out of pin.
Note 6: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operation above
the specified maximum operating junction temperature may impair device
reliability. See High Temperature Consideration section. Also see Operation
section.
3686fc
3
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| LT3686IDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:37V/1.2A Step-Down Regulator in 3mm × 3mm DFN |
| LT3686IDD#PBF | 功能描述:IC REG BUCK ADJ 1.2A 10DFN 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 |
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