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參數(shù)資料
| 型號(hào)： | AMS1503CM-25 |
| 廠商： | Advanced Monolithic Systems, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3A LOW DROPOUT VOLTAGE REGULATORS |
| 中文描述： | 第3A低壓降穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大小： | 76K |
| 代理商： | AMS1503CM-25 |
Advanced Monolithic Systems
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS1503
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
OUT
= 0 mA, and T
J
= +25°C unless otherwise specified.
Parameter
Device
Conditions
Min Typ Max
Units
Dropout Voltage
Note 2
Control Dropout
(V
CONTROL
- V
OUT
)
AMS1503/-1.5/-2.5/-
2.85/-3.0/-3.3/-3.5/-5.0
V
POWER
=V
OUT
+ 0.8V, I
LOAD
= 10mA
V
POWER
=V
OUT
+ 0.8V, I
LOAD
= 3A
1.00
1.15
1.15
1.30
V
V
Power Dropout
(V
POWER
- V
OUT
)
AMS1503/-1.5/-2.5/-
2.85/-3.0/-3.3/-3.5/-5.0
V
CONTROL
=V
OUT
+ 2.5V, I
LOAD
= 10mA
V
CONTROL
=V
OUT
+ 2.5V, I
LOAD
= 2A
V
CONTROL
=V
OUT
+ 2.5V, I
LOAD
= 3A
0.10
0.30
0.35
0.17
0.45
0.50
V
V
V
Parameters identified with
boldface type
apply over the full operating temperature range.
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the
Electrical Characteristics
.
The guaranteed specifications apply only for the test conditions listed.
Note 2:
Unless otherwise specified V
OUT
= V
SENSE
. For the adjustable device V
ADJ
= 0V.
Note 3:
The dropout voltage for the AMS1503 is caused by either minimum control voltage or minimum power voltage. The specifications represent the minimum
input/output voltage required to maintain 1% regulation.
Note 4:
For the adjustable device the minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor divider
used to set the output voltage is selected to meet the minimum load current requirement.
Note 5:
The control pin current is the drive current required for the output transistor. This current will track output current with a ratio of about 1:100. The
minimum value is equal to the quiescent current of the device.
PIN FUNCTIONS
Sense (Pin 1):
This pin is the positive side of the
reference voltage for the device. With this pin it is
possible to Kelvin sense the output voltage at the load.
Adjust (Pin 2/5):
This pin is the negative side of the
reference voltage for the device. Adding a small bypass
capacitor from the Adjust pin to ground improves the
transient response. For fixed voltage devices the Adjust
pin is also brought out to allow the user to add a bypass
capacitor.
For fixed voltage devices this
is the bottom of the resistor divider that sets the output
voltage.
V
POWER
(Pin 5/6):
This pin is the collector to the power
device of the AMS1503. The output load current is
supplied through this pin. The voltage at this pin must
be between 0.1V and 0.8V greater than the output
voltage for the device to regulate.
V
CONTROL
(Pin 4/3):
This pin is the supply pin for the
control circuitry of the device. The current flow into
this pin will be about 1% of the output current. The
voltage at this pin must be 1.3V or greater than the
output voltage for the device to regulate.
Output (Pin 3/4):
This is the power output of the
device.
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| AMS1503CM-285 | 制造商:ADMOS 制造商全稱:ADMOS 功能描述:3A LOW DROPOUT VOLTAGE REGULATORS |
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