参数资料
型号: LT3070EUFD#TRPBF
厂商: Linear Technology
文件页数: 10/28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
Bias Voltage Line Regulation
Input Voltage Line Regulation
Input Voltage Line Regulation
400
V BIAS = 3.25V TO 3.6V
300 V IN = 2.1V
V OUT = 1.8V
200 I OUT = 10mA
100
0
–100
300
250
200
150
100
V BIAS = 3.3V
V IN = 1.05V TO 2.7V
V OUT = 0.8V
I OUT = 10mA
300
250
200
150
100
V BIAS = 3.3V
V IN = 2.05V TO 2.7V
V OUT = 1.8V
I OUT = 10mA
–200
–300
50
50
–400
–75 –50 –25 0
25 50 75 100 125 150 175
0
–75 –50 –25 0
25 50 75 100 125 150 175
0
–75 –50 –25 0
25 50 75 100 125 150 175
TEMPERATURE (°C)
Output Voltage Start-Up Time
vs C REF/BYP
3070 G34
TEMPERATURE (°C)
3070 G35
Nap Mode Recovery Time vs I OUT
TEMPERATURE (°C)
3070 G36
Output Noise Spectral Density
20
18
16
14
12
10
8
6
4
V BIAS = 2.5V TO 3.3V
I OUT = 10mA
C OUT = 10μF + 4.7μF + 2.2μF
T J = 25°C
SEE APPLICATIONS
INFORMATION FOR
START-UP DETAILS
400
350
300
250
200
150
100
V BIAS = 3.3V
V IN = V OUT(NOM) + 300mV
EN = LOW TO HIGH
I OUT = 5A (SET BY A RESISTOR LOAD)
T J = 25°C
V OUT = 1.8V,
C OUT = 117μF
V OUT = 1.2V,
C OUT = 117μF
V OUT = 0.8V,
C OUT = 117μF
1.0
0.1
0.01
V BIAS = 2.5V
V OUT = 1V
I OUT = 5A
C OUT = 16.9μF
C REF/BYP = 0.01μF
2
50
0
0
0.1 0.2 0.3 0.4
REF/BYP CAPACITANCE (μF)
0.5
0
0
1
2 3
OUTPUT CURRENT (A)
4
5
0.001
10
100
1k 10k
FREQUENCY (Hz)
100k
RMS Output Noise
vs Output Current
3070 G37
3070 G38
Output Noise (10Hz to 100kHz)
Input Voltage Line Transient
Response
3070 G39
80
70
60
V IN = V OUT(NOMINAL) + 300mV
V BIAS = 3.3V
C OUT = 16.9μF
V OUT
1mV/DIV
50
40
30
20
V OUT
100μV/DIV
V IN
50mV/DIV
10
0
0.01
V OUT = 1.8V
V OUT = 1.2V
V OUT = 0.8V
0.1
1
10
V OUT = 1V
I OUT = 5A
C OUT = 16.9μF
1ms/DIV
3070 G41
V IN = 1.3V
V OUT = 1V
I OUT = 5A
C OUT = 16.9μF
20μs/DIV
3070 G42
OUTPUT CURRENT (A)
3070 G40
3070fb
10
For more information www.linear.com/LT3070
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