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参数资料
| 型号： | GM6156 |
| 厂商： | American Power Management Inc. |
| 英文描述： | 150mA LOW-NOISE LDO REGULATOR |
| 中文描述： | 150mA低噪声LDO稳压器 |
| 文件页数： | 7/9页 |
| 文件大小： | 126K |
| 代理商： | GM6156 |
G
M
6
1
5
6
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 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
must be diode clamped to ground.
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
R1
R2
G
M
6
1
5
6
1
2
3
4
5
VIN
VOUT
470pF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| GM6156-2.5ST25R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR |
| GM6156-2.7ST25R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR |
| GM6156-2.8ST25R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR |
| GM6156-3.0ST25R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR |
| GM6156-3.3ST25R | 制造商:GAMMA 制造商全称:GAMMA 功能描述:150mA LOW-NOISE LDO REGULATOR |
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