参数资料
型号: LT3071EUFD#TRPBF
厂商: Linear Technology
文件页数: 8/28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: -40°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)
LT3071
TYPICAL PERFORMANCE CHARACTERISTICS
7.50
7.25
7.00
6.75
Current Limit vs Temperature
V IN = V OUT(NOMINAL) + 300mV
8
7
6
Current Limit vs V IN – V OUT
V BIAS = 3.3V
T J = 25°C
100
90
80
70
BIAS Pin Ripple Rejection
V IN = 1.3V
V OUT = 1V
I OUT = 5A
C OUT = 10μF + 4.7μF + 2.2μF
6.50
6.25
6.00
5
4
3
60
50
40
5.75
5.50
5.25
5.00
–75 –50 –25 0
V OUT = 1.8V, V BIAS = 3.3V
V OUT = 1.2V, V BIAS = 3.3V
V OUT = 0.8V, V BIAS = 2.5V
25 50 75 100 125 150 175
2
1
0
0
V OUT = 1.8V
V OUT = 1.2V
V OUT = 0.8V
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
30
20
10
0
10
V BIAS = 2.5V + 500mV P-P
V BIAS = 2.7V + 500mV P-P
V BIAS = 3.3V + 500mV P-P
100 1k 10k 100k
1M
10M
TEMPERATURE (°C)
IN Pin Ripple Rejection
3071 G25
IN-TO-OUT VOLTAGE DIFFERENTIAL (V)
3071 G26
IN Pin Ripple Rejection
FREQUENCY (Hz)
Minimum BIAS Voltage
vs Temperature
3071 G27
80
70
60
50
40
80
70
60
50
40
4.0
3.8
3.6
3.4
3.2
3.0
I OUT = 5 A
V OUT = 1.8V
V OUT = 1.2V
V OUT = 0.8V
30
20
10
0
10
C OUT = 117μF
C OUT = 16.9μF
V OUT = 1V
V IN = 1.3V + 50mV P-P RIPPLE
V BIAS = 2.5V
I OUT = 1A
100 1k 10k 100k
1M
10M
30
20
10
0
10
C OUT = 117μF
C OUT = 16.9μF
V OUT = 1V
V IN = 1.3V + 50mV P-P RIPPLE
V BIAS = 2.5V
I OUT = 5A
100 1k 10k 100k
1M
10M
2.8
2.6
2.4
2.2
2.0
–75 –50 –25 0 25 50 75 100 125 150 175
FREQUENCY (Hz)
3071 G28
FREQUENCY (Hz)
3071 G29
TEMPERATURE (°C)
3071 G30
3.6
3.4
3.2
3.0
Minimum BIAS Voltage vs I OUT
V IN = V OUT(NOMINAL) + 300mV
? V OUT = –1%, T J = 25°C
V OUT = 1.8V
V OUT = 1.5V
V OUT = 1.2V
V OUT = 0.8V TO 1V
3.4
3.2
3.0
2.8
Minimum BIAS Voltage vs V OUT
I OUT = 5A
T J = 25°C
0
–2
–4
Load Regulation
2.8
2.6
V IN = V OUT(NOMINAL) + 300mV
V OUT = 0.8V
2.6
2.4
2.2
2.0
0
1
2
3
4
5
2.4
2.2
2.0
1.8
0.7
0.9
1.1 1.3
1.5
1.7
1.9
–6
V BIAS = 3.3V
? I OUT = 100mA TO 5A
–8
V OUT = 1.2V
V OUT = 1.8V
–10
–75 –50 –25 0 25 50 75 100 125 150 175
OUTPUT CURRENT (A)
3071 G31
OUTPUT VOLTAGE (V)
3071 G51
TEMPERATURE (°C)
3071 G32
3071fb
8
For more information www.linear.com/3071
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