參數資料
型號: FAN1581MX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 基準電壓源/電流源
英文描述: 5A Adjustable/Fixed Ultra Low Dropout Linear Regulator
中文描述: 1.237 V-5.7 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO5
封裝: PLASTIC, TO-263, 5 PIN
文件頁數: 2/13頁
文件大小: 85K
代理商: FAN1581MX
FAN1581
PRODUCT SPECIFICATION
2
REV. 1.2.0 11/6/03
Pin Assignments
Pin Definitions
Internal Block Diagram
Pin
Number
Pin Name
VSense
Pin Function Descrition
. Connect this pin to the load to permit true remote sensing and
1
Remote Voltage Sense
avoid trace drops.
Adjust or Ground.
voltage. On the FAN1581-1.2, -1.5 and -2.5, connect this pin to ground.
Output Voltage.
This pin and the tab are output.
Control Voltage.
This pin draws small-signal power to control the FAN1581 circuitry.
Connect to a voltage higher than VIN, as shown in the applications circuits.
Input Voltage.
2
ADJ/GND
On the FAN1581, this pin forms the feedback to determine the output
3
4
VOUT
VCNTL
5
VIN
FRONT VIEW
1
2 3 4 5
FRONT VIEW
1
2 3 4 5
FAN1581M-1.2,
-1.5, -2.5
FAN1581M
FRONT VIEW
FAN1581D
FRONT VIEW
FAN1581D-1.2,
-1.5, -2.5
FRONT VIEW
FAN1581T
5-Lead Plastic TO-263
Θ
JC
=3
°
C/W*
Tab is out.
5-Lead TO-220
Θ
JC
=3
°
C/W* Tab is VOUT.
5-Lead Plastic TO-252 DPAK
Θ
JC
=3
°
C/W*
Tab is out.
C
O
S
I
C
O
S
I
1
2
3
4
5
1
2
3
4
5
C
O
S
I
1
2
3
4 5
G
C
O
S
I
A
C
O
S
I
*With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane,
θ
can vary from
30
°
C/W to more than 40
°
C/W. Other mounting techniques can provide a thermal resistance lower than 30
°
C/W.
Current
Limit
Thermal
Shutdown
Vref
Vin, Power
Output
Sense
Adj
V
CNTL
, Control
2
1
3
5
4
Voltage Loop
Amplifier
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