参数资料
| 型号： | LT3071MPUFD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 5A 28QFN |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.8 V ~ 1.8 V |
| 输入电压： | 0.95 V ~ 3 V |
| 电压 - 压降（标准）： | 0.085V @ 5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 5A |
| 电流 - 限制（最小）： | 5.1A |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN（4x5） |
| 包装： | 带卷 (TR) |
| 其它名称： | LT3071MPUFD#TR LT3071MPUFD#TR-ND |
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LT3071
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. C OUT = 15μF (Note 9), V IN = V OUT + 0.3V (Note 5), V BIAS = 2.5V unless
otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Regulated Output Voltage Margining
(Note 3)
Line Regulation to V IN
Line Regulation to V BIAS
Load Regulation,
?I OUT = 10mA to 5A
Dropout Voltage,
V IN = V OUT(NOMINAL) (Note 6)
SENSE Pin Current
Ground Pin Current,
V IN = 1.3V, V OUT = 1V
BIAS Pin Current in Nap Mode
BIAS Pin Current,
V IN = 1.3V, V OUT = 1V
Current Limit (Note 5)
MARGA = 1.2V
MARGA = 0V
V OUT = 0.8V, ? V IN = 1.05V to 2.7V, V BIAS = 3.3V, I OUT = 10mA
V OUT = 1.8V, ?V IN = 2.05V to 2.7V, V BIAS = 3.3V, I OUT = 10mA
V OUT = 0.8V, ?V BIAS = 2.2V to 3.6V, V IN = 1.1V, I OUT = 10mA
V OUT = 1.8V, ?V BIAS = 3.25V to 3.6V, V IN = 2.1V, I OUT = 10mA
V BIAS = 2.5V, V IN = 1.05V, V OUT = 0.8V
V BIAS = 2.5V, V IN = 1.25V, V OUT = 1.0V
V BIAS = 3.3V, V IN = 1.45V, V OUT = 1.2V
V BIAS = 3.3V, V IN = 1.75V, V OUT = 1.5V
V BIAS = 3.3V, V IN = 2.05V, V OUT = 1.8V
I OUT = 1A, V OUT = 1V
I OUT = 2.5A, V OUT = 1V
I OUT = 5A, V OUT = 1V
V IN = 1.1V, V SENSE = 0.8V
V BIAS = 3.3V, V IN = 2.1V, V SENSE = 1.8V
I OUT = 10mA
I OUT = 5A
EN = Low
I OUT = 10mA
I OUT = 100mA
I OUT = 500mA
I OUT = 1A
I OUT = 2.5A
I OUT = 5A
V IN – V OUT < 0.3V, V BIAS = 3.3V
V IN – V OUT = 1.0V, V BIAS = 3.3V
V IN – V OUT = 1.7V, V BIAS = 3.3V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
9.5
–10.5
35
200
0.65
0.9
120
0.75
1.25
2.0
2.6
3.5
4.5
5.1
3.2
1.2
10
–10
–1.5
–2
–2
–2.5
–3
20
50
85
50
300
1.1
1.35
200
1.08
1.8
3.0
3.8
5.2
6.9
6.4
4.5
2.5
10.5
–9.5
1.0
1.0
2.0
1.0
–3.0
–5.5
–4.0
–7.5
–4.0
–7.5
–5.0
–9.0
–7.0
–13
35
65
85
120
150
65
400
1.8
2.3
320
1.5
2.4
4.0
5.0
7.0
10.0
7.7
5.8
4.3
%
%
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
μA
μA
mA
mA
μA
mA
mA
mA
mA
mA
mA
A
A
A
I MON Full-Scale Output Current (Note 3) I OUT = 5A, V IN – V OUT = 0.3V, V OUT = 0.8V, 1.8V
l
1.6
2.0
2.4
mA
I MON /I OUT Scale (Note 3)
Reverse Output Current (Note 8)
PWRGD V OUT Threshold
PWRGD V OL
V BIAS Undervoltage Lockout
V IN -V OUT Servo Voltage by VIOC
VIOC Output Current
V IL Input Threshold (Logic-0 State),
V O2 , V O1 , V O0
1A ≤ I OUT ≤ 5A, V IN – V OUT = 0.3V, V OUT = 0.8V, 1.8V
V IN = 0V, V OUT = 1.8V
Percentage of V OUT(NOMINAL) , V OUT Rising
Percentage of V OUT(NOMINAL) , V OUT Falling
I PWRGD = 200μA (Fault Condition)
V BIAS Rising
V BIAS Falling
V IN = V OUT(NOMINAL) + 150mV, Sourcing Out of the Pin
V IN = V OUT(NOMINAL) + 450mV, Sinking Into the Pin
Input Falling
l
l
l
l
l
l
l
l
l
l
l
340
87
82
1.1
0.9
250
160
170
400
300
90
85
50
1.55
1.4
300
235
255
460
450
93
88
150
2.1
1.7
350
310
340
0.25
μA/A
μA
%
%
mV
V
V
mV
μA
μA
V
3071fb
For more information www.linear.com/3071
3
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