LT3071MPUFD 查看數據表（PDF） - Linear Technology
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LT3071MPUFD
Linear Technology
LT3071MPUFD Datasheet PDF : 30 Pages
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LT3071
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
Regulated Output Voltage Margining MARGA = 1.2V
(Note 3)
MARGA = 0V
l
9.5
10
10.5
%
l –10.5 –10
–9.5
%
Line Regulation to VIN
Line Regulation to VBIAS
Load Regulation,
∆IOUT = 10mA to 5A
VOUT = 0.8V, ∆VIN = 1.05V to 2.7V, VBIAS = 3.3V, IOUT = 10mA l
VOUT = 1.8V, ∆VIN = 2.05V to 2.7V, VBIAS = 3.3V, IOUT = 10mA l
VOUT = 0.8V, ∆VBIAS = 2.2V to 3.6V, VIN = 1.1V, IOUT = 10mA
l
VOUT = 1.8V, ∆VBIAS = 3.25V to 3.6V, VIN = 2.1V, IOUT = 10mA l
VBIAS = 2.5V, VIN = 1.05V, VOUT = 0.8V
l
VBIAS = 2.5V, VIN = 1.25V, VOUT = 1.0V
l
1.0
mV
1.0
mV
2.0
mV
1.0
mV
–1.5 –3.0
mV
–5.5
mV
–2
–4.0
mV
–7.5
mV
VBIAS = 3.3V, VIN = 1.45V, VOUT = 1.2V
–2
–4.0
mV
l
–7.5
mV
VBIAS = 3.3V, VIN = 1.75V, VOUT = 1.5V
–2.5 –5.0
mV
l
–9.0
mV
VBIAS = 3.3V, VIN = 2.05V, VOUT = 1.8V
–3
–7.0
mV
l
–13
mV
Dropout Voltage,
VIN = VOUT(NOMINAL) (Note 6)
IOUT = 1A, VOUT = 1V
IOUT = 2.5A, VOUT = 1V
l
20
35
mV
50
65
mV
l
85
mV
IOUT = 5A, VOUT = 1V
85
120
mV
l
150
mV
SENSE Pin Current
Ground Pin Current,
VIN = 1.3V, VOUT = 1V
BIAS Pin Current in Nap Mode
VIN = 1.1V, VSENSE = 0.8V
VBIAS = 3.3V, VIN = 2.1V, VSENSE = 1.8V
IOUT = 10mA
IOUT = 5A
EN = Low
l
35
50
65
µA
l 200
300
400
µA
l 0.65
1.1
1.8
mA
l
0.9
1.35
2.3
mA
l 120
200
320
µA
BIAS Pin Current,
VIN = 1.3V, VOUT = 1V
IOUT = 10mA
IOUT = 100mA
IOUT = 500mA
IOUT = 1A
IOUT = 2.5A
IOUT = 5A
Current Limit (Note 5)
VIN – VOUT < 0.3V, VBIAS = 3.3V
VIN – VOUT = 1.0V, VBIAS = 3.3V
VIN – VOUT = 1.7V, VBIAS = 3.3V
IMON Full-Scale Output Current (Note 3) IOUT = 5A, VIN – VOUT = 0.3V, VOUT = 0.8V, 1.8V
IMON/IOUT Scale (Note 3)
1A ≤ IOUT ≤ 5A, VIN – VOUT = 0.3V, VOUT = 0.8V, 1.8V
Reverse Output Current (Note 8)
VIN = 0V, VOUT = 1.8V
PWRGD VOUT Threshold
Percentage of VOUT(NOMINAL), VOUT Rising
Percentage of VOUT(NOMINAL), VOUT Falling
PWRGD VOL
IPWRGD = 200µA (Fault Condition)
VBIAS Undervoltage Lockout
VBIAS Rising
VBIAS Falling
VIN-VOUT Servo Voltage by VIOC
VIOC Output Current
VIN = VOUT(NOMINAL) + 150mV, Sourcing Out of the Pin
VIN = VOUT(NOMINAL) + 450mV, Sinking Into the Pin
VIL Input Threshold (Logic-0 State), Input Falling
VO2, VO1, VO0
l 0.75 1.08
1.5
mA
l 1.25
1.8
2.4
mA
l
2.0
3.0
4.0
mA
l
2.6
3.8
5.0
mA
l
3.5
5.2
7.0
mA
l
4.5
6.9
10.0
mA
l
5.1
6.4
7.7
A
l
3.2
4.5
5.8
A
l
1.2
2.5
4.3
A
l
1.6
2.0
2.4
mA
l 340
400
460
µA/A
l
300
450
µA
l
87
90
93
%
l
82
85
88
%
l
50
150
mV
l
1.1
1.55
2.1
V
l
0.9
1.4
1.7
V
l 250
300
350
mV
l 160
235
310
µA
l 170
255
340
µA
l
0.25
V
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