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參數(shù)資料
| 型號： | LT4180MPGN#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO24 |
| 封裝： | 0.150 INCH, LEAD FREE, PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 278K |
| 代理商： | LT4180MPGN#TRPBF |
LT4180
3
4180fa
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 LT4180E is guaranteed to meet performance specications
from 0°C to 125°C junction temperature. Specications over the –40°C
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C, VIN = SENSE = 5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VINTVCC
LDO Regulator Output Voltage in
Dropout
VIN = 2.5V
2.2
V
VOV
Overvoltage Threshold
Rising
1.21
V
VOHYST
Overvoltage Input Hysteresis
VRISING – VFALLING
15
80
mV
VRUN
Run Threshold
Falling
1.21
V
VRHYST
Run Input Hysteresis
VRISING – VFALLING
15
80
mV
IFB
Input Bias Current
–0.2
0.2
μA
AV(RATIO)
Current Amplier Gain Ratio
AVL/AVH, AV Measured in V/V
0.891
0.9
0.909
ISENSE
Current Amplier Input Bias Current
Measured at SENSE with SENSE = VIN
–1
1
μA
AV
ΔVFB Amplier Gain
9.7
10
10.3
V/V
ICHOLD1
Track/Hold Charging Current
Measured at CHOLD1 with VCHOLD1 = 1.2V
±60
μA
ICHOLD2
Track/Hold Charging Current
Measured at CHOLD2 with VCHOLD2 = 1.2V
±25
μA
ICHOLD3
Track/Hold Charging Current
Measured at CHOLD3 with VCHOLD3 = 1.2V
±25
μA
ICHOLD4
Track/Hold Charging Current
Measured at CHOLD4 with VCHOLD4 = 1.5V,
VCHOLD2 = 1V, VCHOLD3 = 1.2V
10
μA
Measured at CHOLD4 with VCHOLD4 = 1.5V,
VCHOLD2 = 1.4V, VCHOLD3 = 1.2V
–200
μA
ISC
Soft-Correct Current
Measured at CHOLD4
±1.5
μA
ILKG1
Track/Hold Leakage Current
Measured at CHOLD1 with VCHOLD1 = 1.2V
±1
μA
ILKG2
Track/Hold Leakage Current
Measured at CHOLD2 with VCHOLD2 = 1.2V
±1
μA
ILKG3
Track/Hold Leakage Current
Measured at CHOLD3 with VCHOLD3 = 1.2V
±1
μA
ILKG4
Track/Hold Leakage Current
Measured at CHOLD4 with VCHOLD4 = 1.2V
±1
μA
fOSC
Oscillator Frequency
ROSC = 20k, COSC = 1nF
170
200
230
kHz
gmFB
Voltage Error Amplier
Transconductance
Measured from FB to COMP, VCOMP = 2V,
OSC Stopped with Voltage Feedback Loop Closed
120
μmho
gmIAMP
Current Amplier Transconductance
Measured from SENSE to COMP, VCOMP = 2V,
OSC Stopped with Current Feedback Loop Closed
700
μmho
to 125°C operating junction temperature range are assured by design
characterization and correlation with statistical process controls. The
LT4180I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT4180MP is guaranteed over the full –55°C to
125°C operating junction temperature range.
Note 3. Positive current is dened as owing into a pin.
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