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參數(shù)資料
| 型號： | LT3470HDDB |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.2 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | 3 X 2 MM, 0.75MM INCH HEIGHT, MO-229WECD-1, PLASTIC, DFN-8 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 256K |
| 代理商： | LT3470HDDB |
3
LT3470
3470fc
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.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
●
4V
Quiescent Current from VIN
VSHDN = 0.2V
0.1
0.5
A
VBIAS = 3V, Not Switching
●
10
18
A
VBIAS = 0V, Not Switching
35
50
A
Quiescent Current from Bias
VSHDN = 0.2V
0.1
0.5
A
VBIAS = 3V, Not Switching
●
25
60
A
VBIAS = 0V, Not Switching
0.1
1.5
A
FB Comparator Trip Voltage
VFB Falling
●
1.228
1.250
1.265
V
FB Pin Bias Current (Note 3)
VFB = 1V, E and I-Grade
35
80
nA
●
35
150
nA
H-Grade
●
35
225
nA
FB Voltage Line Regulation
4V < VIN < 40V
0.0006
0.01
%/V
Minimum Switch Off-Time (Note 5)
500
ns
Switch Leakage Current
0.7
1.5
A
Switch VCESAT
ISW = 100mA (TS8 Package)
215
300
mV
ISW = 100mA (DD8 Package)
215
mV
Switch Top Current Limit
VFB = 0V
250
325
435
mA
Switch Bottom Current Limit
VFB = 0V
225
mA
Catch Schottky Drop
ISH = 100mA (TS8 Package)
630
775
mV
ISH = 100mA (DD8 Package)
630
mV
Catch Schottky Reverse Leakage
VSW = 10V
0.2
2
A
Boost Schottky Drop
ISH = 30mA
650
775
mV
Boost Schottky Reverse Leakage
VSW = 10V, VBIAS = 0V
0.2
2
A
Minimum Boost Voltage (Note 4)
●
1.7
2.2
V
BOOST Pin Current
ISW = 100mA
7
12
mA
SHDN Pin Current
VSHDN = 2.5V
1
5
A
SHDN Input Voltage High
2.5
V
SHDN Input Voltage Low
0.2
V
The
● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 10V, VSHDN = 10V, VBOOST = 15V, VBIAS = 3V unless otherwise specified.
ELECTRICAL CHARACTERISTICS
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