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LT3070 数据表(PDF) 4 Page - Linear Technology

部件名 LT3070
功能描述  5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator
PDF  24 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT3070 数据表(HTML) 4 Page - Linear Technology

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LT3070
4
3070p
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. COUT = 15μF (Note 9), VIN = VOUT + 0.3V (Note 5), VBIAS = 2.5V unless
otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BIAS Pin Current in Nap Mode
EN = Low (After POR Completed)
l
300
420
650
μA
BIAS Pin Current, VIN = 1.3V, VOUT = 1V
IOUT = 10mA
IOUT = 100mA
IOUT = 500mA
IOUT = 1A
IOUT = 2.5A
IOUT = 5A
l
l
l
l
l
l
1.20
2.05
2.75
3.40
4.85
5.20
1.80
2.60
3.70
4.60
6.40
7.25
2.40
3.70
5.45
6.80
9.40
11.45
mA
mA
mA
mA
mA
mA
Current Limit (Note 5)
VIN – VOUT < 0.5V
VIN – VOUT = 0.6V
VIN – VOUT = 1.0V
VIN – VOUT = 1.5V
l
l
l
l
5.2
4.8
3.4
1.0
6
5.2
4.4
1.8
A
A
A
A
Reverse Output Current (Note 8)
VIN = 0V, VOUT = 3V
200
400
μA
PWRGD VOUT Threshold
Percentage of VOUT(NOMINAL), VOUT Rising
Percentage of VOUT(NOMINAL), VOUT Falling
l
l
87.5
83.5
90
86
92.5
88.5
%
%
PWRGD VOL
IPWRGD = 200μA (Fault Condition)
l
100
mV
VBIAS Undervoltage Lockout
EN = 3.3V, VBIAS Rising
EN = 3.3V, VBIAS Falling
l
l
1.11
0.96
1.50
1.30
2.03
1.62
V
V
VIN-VOUT Servo Voltage by VIOC
l
250
300
350
mV
VIOC Output Current
VIN = VOUT(NOMINAL) + 150mV, Sourcing
VIN = VOUT(NOMINAL) + 450mV, Sinking
l
l
175
175
256
256
335
335
μA
μA
VIL Input Threshold (Logic-0 State),
VO2, VO1, VO0, MARGSEL, MARGTOL
Input Falling
l
0.22
0.42
V
VIZ Input Range (Logic-Z State),
VO2, VO1, VO0, MARGSEL, MARGTOL
l
0.75
1.76
V
VIH Input Threshold (Logic-1 State),
VO2, VO1, VO0, MARGSEL, MARGTOL
Input Rising
l
2.00
2.25
V
Input Hysteresis (Both Thresholds),
VO2, VO1, VO0, MARGSEL, MARGTOL
l
40
52
70
mV
Input Current High,
VO2, VO1, VO0, MARGSEL, MARGTOL
VIH = VBIAS = 2.5V, Current Flows Into Pin
l
27
43
μA
Input Current Low,
VO2, VO1, VO0, MARGSEL, MARGTOL
VIL = 0V, VBIAS = 2.5V, Current Flows Out of Pin
l
26
38
μA
EN Pin Threshold
VOUT = Off to On
VOUT = On to Off
l
l
0.94
1.35
V
V
EN Pin Logic High Current
VEN = VBIAS = 2.5V
l
3.8
5.0
7.1
μA
EN Pin Logic Low Current
VEN = 0V
l
0.1
μA



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