參數(shù)資料
型號(hào)： GM6155-AST25R
廠商： American Power Management Inc.
英文描述： 150mA LOW-NOISE LDO REGULATOR
中文描述： 150mA低噪聲LDO穩(wěn)壓器
文件頁(yè)數(shù)： 7/9頁(yè)
文件大?。?/td> 126K
代理商： GM6155-AST25R
G
M
6
1
5
7
This equation is correct due to the configuration of the bandgap reference. The bandgap voltage is relative to
the output, as seen in the block diagram. Traditional regulators normally have the reference voltage relative to
ground and have a different V
equation.
OUT
Resistor values are not critical because ADJ(adjust) has a high input impedance, but for best results use
resistors of 470kW or less for best results. A capacitor from ADJ to ground provides greatly improved noise
performance.
Figure 5. Ultra-Low- Noise Adjustable Voltage Application
Figure 5 includes the optional 470pF noise bypass capacitor from ADJ to GND to reduce output noise.
Dual-Supply Operation
When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage
VIN
R1
R2
G
M
6
1
5
-A
d
j
1
2
3
4
5
VOUT
2.2F
470pF
Typical Characteristics
0
-20
-40
-60
-80
-100
10
100
1k
10k
100k
1M
10M
Figure 6. Power Supply Rejection Ratio
FREQUENCY(Hz)
P
S
R
(d
B
)
V
= 6V
IN
V
= 5V
OUT
I
=100mA
OUT
C
= 1F
OUT
0
-20
-40
-60
-80
-100
10
100
1k
10k
100k
1M
10M
Figure 7. Power Supply Rejection Ratio
FREQUENCY(Hz)
P
S
R
(d
B
)
V
= 6V
IN
V
= 5V
OUT
I
=100mA
OUT
C
= 2.2F
OUT
C
= 0.01F
BYP
320
280
240
200
160
120
80
40
0
40
80
120
160
Figure 8. Dropout Voltage vs.
Output Current
OUTPUT CURRENT (mA)
D
R
O
P
O
U
T
V
O
L
T
A
G
E
(m
V
)
125°C
25°C
-40°C
Figure 9. Noise Performance
FREQUENCY(Hz)
10
1
0.1
0.01
0.001
0.0001
10
100
1k
10k
100k
1M
10M
N
O
IS
E
(
V
/
H
z
)
100mA
10mA
1mA
V
=5V
OUT
C
=10F
OUT
electrolytic
C
=10nF
BYP
相關(guān)PDF資料
PDF描述
GM6155 150mA LOW-NOISE LDO REGULATOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GM6156 制造商:GAMMA 制造商全稱:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR
GM6156-2.5ST25R 制造商:GAMMA 制造商全稱:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR
GM6156-2.7ST25R 制造商:GAMMA 制造商全稱:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR
GM6156-2.8ST25R 制造商:GAMMA 制造商全稱:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR
GM6156-3.0ST25R 制造商:GAMMA 制造商全稱:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR
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