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| 型号： | LT3470EDDB#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 0.2A 8DFN |
| 标准包装： | 500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 16 V |
| 输入电压： | 4 V ~ 40 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 200mA |
| 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： | 8-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-DFN（3x2） |
LT3470
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 = 10V, V SHDN = 10V, V BOOST = 15V, V BIAS = 3V unless otherwise specified.
PARAMETER
Minimum Input Voltage
Quiescent Current from V IN
Quiescent Current from Bias
CONDITIONS
V SHDN = 0.2V
V BIAS = 3V, Not Switching
V BIAS = 0V, Not Switching
V SHDN = 0.2V
V BIAS = 3V, Not Switching
V BIAS = 0V, Not Switching
●
●
●
MIN
TYP
0.1
10
35
0.1
25
0.1
MAX
4
0.5
18
50
0.5
60
1.5
UNITS
V
μA
μA
μA
μA
μA
μA
FB Comparator Trip Voltage
FB Pin Bias Current (Note 3)
FB Voltage Line Regulation
V FB Falling
V FB = 1V, E- and I-Grade
H-Grade
4V < V IN < 40V
●
●
●
1.228
1.250
35
35
35
0.0006
1.265
80
150
225
0.01
V
nA
nA
nA
%/V
Minimum Switch Off-Time (Note 5)
500
ns
Switch Leakage Current
0.7
1.5
μA
Switch V CESAT
I SW = 100mA (TS8 Package)
I SW = 100mA (DD8 Package)
215
215
300
mV
mV
Switch Top Current Limit
Switch Bottom Current Limit
Catch Schottky Drop
Catch Schottky Reverse Leakage
Boost Schottky Drop
Boost Schottky Reverse Leakage
Minimum Boost Voltage (Note 4)
BOOST Pin Current
SHDN Pin Current
V FB = 0V
V FB = 0V
I SH = 100mA (TS8 Package)
I SH = 100mA (DD8 Package)
V SW = 10V
I SH = 30mA
V SW = 10V, V BIAS = 0V
I SW = 100mA
V SHDN = 2.5V
●
250
325
225
630
630
0.2
650
0.2
1.7
7
1
435
775
2
775
2
2.2
12
5
mA
mA
mV
mV
μA
mV
μA
V
mA
μA
SHDN Input Voltage High
SHDN Input Voltage Low
2.5
0.2
V
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 LT3470E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and
correlation with statistical process controls. The LT3470I specifications
are guaranteed over the –40°C to 125°C temperature range. LT3470H
specifications are guaranteed over –40°C to 150°C temperature range.
Note 3: Bias current flows out of the FB pin.
Note 4: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
Note 5: This parameter is assured by design and correlation with statistical
process controls.
3470fd
3
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| LT3470ETS8#TRMPBF | 功能描述:IC REG BUCK ADJ 0.2A TSOT23-8 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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