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参数资料
| 型号： | LTC3459EDCB#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.09 A SWITCHING REGULATOR, PDSO6 |
| 封装： | 2 X 3 MM, LEAD FREE, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 6/12页 |
| 文件大小： | 216K |
| 代理商： | LTC3459EDCB#PBF |
LTC3459
3
3459fc
ELECTRICAL CHARACTERISTICS
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 LTC3459E 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.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Voltage Range
l
1.5
5.5
V
VIN Quiescent Current
SHDN = VCC
10
20
μA
VIN Shutdown Current
SHDN = GND
0.1
1
μA
VOUT
Programmable Voltage Range
l
2.5
10
V
VOUT Quiescent Supply Current
SHDN = VCC
24
μA
VOUT Shutdown Current
SHDN = GND
0.1
1
μA
Reference
Feedback Voltage
VIN = 3.3V, VOUT = 7.5V
l
1.19
1.22
1.25
V
FB Input Leakage Current
Measured on FB
10
50
nA
Converter Performance
Peak Switch Current (VIN = 3.3V)
L = 22μH
l
60
75
90
mA
tOFF Timer (VIN = 3.3V, VOUT = 5V)
Varies by 1/(VOUT – VIN)
225
400
550
ns
Zero Current Comparator Threshold
L = 22μH
0
mA
Main NMOS Switch
On-Resistance
VOUT = 5V
2.8
Ω
Leakage Current
VSWITCH = 10V, VOUT = 10V
0.01
1
μA
Main PMOS Switch
On-Resistance
VOUT = 5V
4.2
Ω
Leakage Current
VIN = 5V, VSWITCH = 5V, VOUT = 0V
0.02
2
μA
Logic Inputs
SHDN Threshold (Rising Edge)
0.3
1
V
SHDN Hysteresis
80
mV
SHDN Input Leakage Current
SHDN = 3.3V
0
50
nA
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 3.3V, VOUT = 5V, unless otherwise noted.
Note 3: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specied maximum operating junction
temperature may impair device reliability.
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