参数资料
型号: LT3070EUFD#TRPBF
厂商: Linear Technology
文件页数: 9/28页
文件大小: 0K
描述: IC REG LDO ADJ 5A 28QFN
产品培训模块: LT3070 - 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator
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)
LT3070
TYPICAL PERFORMANCE CHARACTERISTICS
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
80
70
60
IN Pin Ripple Rejection
5
4
60
50
50
40
3
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
40
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
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
IN-TO-OUT VOLTAGE DIFFERENTIAL (V)
3070 G26
IN Pin Ripple Rejection
FREQUENCY (Hz)
Minimum BIAS Voltage
vs Temperature
3070 G27
FREQUENCY (Hz)
3070 G28
Minimum BIAS Voltage vs I OUT
80
70
60
50
4.0
3.8
3.6
3.4
3.2
I OUT = 5 A
V OUT = 1.8V
V OUT = 1.2V
V OUT = 0.8V
3.6
3.4
3.2
3.0
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
40
3.0
2.8
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
2.6
2.4
2.2
2.0
0
1
2
3
4
5
FREQUENCY (Hz)
3070 G29
Minimum BIAS Voltage vs V OUT
TEMPERATURE (°C)
Load Regulation
3070 G30
OUTPUT CURRENT (A)
Bias Voltage Line Regulation
3070 G31
3.4
3.2
3.0
2.8
2.6
I OUT = 5A
T J = 25°C
0
–2
–4
800
V BIAS = 2.2V TO 3.6V
700 V IN = 1.1V
V OUT = 0.8V
600 I OUT = 10mA
500
400
V IN = V OUT(NOMINAL) + 300mV
V OUT = 0.8V
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
300
200
100
0
–75 –50 –25 0
25 50 75 100 125 150 175
OUTPUT VOLTAGE (V)
3070 G51
TEMPERATURE (°C)
3070 G32
TEMPERATURE (°C)
3070 G33
3070fb
For more information www.linear.com/LT3070
9
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