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LT3071
电气特性
参数
IN引脚电压范围
BIAS Pin Voltage Range (Note 3)
稳压输出电压
V
OUT
= 0.8V, 10mA ≤ I
OUT
≤ 5A, 1.05V ≤ V
IN
≤ 1.25V
V
OUT
= 0.9V, 10mA ≤ I
OUT
≤ 5A, 1.15V ≤ V
IN
≤ 1.35V
V
OUT
= 1V, 10mA ≤ I
OUT
≤ 5A, 1.25V ≤ V
IN
≤ 1.45V
V
OUT
= 1.1V, 10mA ≤ I
OUT
≤ 5A, 1.35V ≤ V
IN
≤ 1.55V
V
OUT
= 1.2V, 10mA ≤ I
OUT
≤ 5A, 1.45V ≤ V
IN
≤ 1.65V, V
BIAS
= 3.3V
V
OUT
= 1.5V, 10mA ≤ I
OUT
≤ 5A, 1.75V ≤ V
IN
≤ 1.95V, V
BIAS
= 3.3V
V
OUT
= 1.8V, 10mA ≤ I
OUT
≤ 5A, 2.05V ≤ V
IN
≤ 2.25V, V
BIAS
= 3.3V
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
l
该
l
表示该应用在整个工作的特定连接的阳离子
温度范围，否则仅指在T
A
= 25°C. C
OUT
= 15μF （注9 ） ，V
IN
= V
OUT
+ 0.3V （注5 ），V
BIAS
= 2.5V ，除非
另有说明。
条件
V
IN
≥ V
OUT
+ 150mV, I
OUT
= 5A
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
民
0.95
2.2
0.792
0.891
0.990
1.089
1.188
1.485
1.782
9.5
–10.5
典型值
最大
3.0
3.6
单位
V
V
V
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
A
A
mA
mA
A
mA
mA
mA
mA
mA
mA
A
A
A
mA
A/A
A
%
%
mV
3071f
0.800
0.900
1.000
1.100
1.200
1.500
1.800
10
–10
0.808
0.909
1.010
1.111
1.212
1.515
1.818
10.5
–9.5
1.0
1.0
2.0
1.0
稳压输出电压余量
(Note 3)
线路调整到V
IN
线路调整到V
BIAS
负载调整率，
I
OUT
= 10mA to 5A
–1.5
–2
l
–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
2.4
460
450
93
88
150
V
BIAS
= 2.5V, V
IN
= 1.25V, V
OUT
= 1.0V
V
BIAS
= 3.3V, V
IN
= 1.45V, V
OUT
= 1.2V
l
–2
–2.5
l
V
BIAS
= 3.3V, V
IN
= 1.75V, V
OUT
= 1.5V
V
BIAS
= 3.3V, V
IN
= 2.05V, V
OUT
= 1.8V
l
–3
l
l
输入输出电压差，
V
IN
= V
OUT （标称）
(Note 6)
I
OUT
= 1A, V
OUT
= 1V
I
OUT
= 2.5A, V
OUT
= 1V
I
OUT
= 5A, V
OUT
= 1V
20
50
85
l
SENSE引脚电流
接地引脚电流，
V
IN
= 1.3V, V
OUT
= 1V
BIAS引脚电流在打盹模式
BIAS引脚电流，
V
IN
= 1.3V, 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 =低（ POR完成后）
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
I
OUT
= 5A, V
IN
– V
OUT
= 0.3V, V
OUT
= 0.8V, 1.8V
1A ≤ I
OUT
≤ 5A, V
IN
– V
OUT
= 0.3V, V
OUT
= 0.8V, 1.8V
V
IN
= 0V, V
OUT
= 1.8V
第五个
OUT （标称）
, V
OUT
升起
第五个
OUT （标称）
, V
OUT
落下
I
PWRGD
= 200A (Fault Condition)
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
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
1.6
340
87
82
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
2.0
400
300
90
85
50
Current Limit (Note 5)
I
MON
满量程输出电流
I
MON
/I
OUT
-scale
Reverse Output Current (Note 8)
PWRGD V
OUT
*阈值
PWRGD V
OL
