參數(shù)資料
型號： LT1581CT7-2.5
廠商： LINEAR TECHNOLOGY CORP
元件分類： 基準電壓源/電流源
英文描述： 10A, Very Low Dropout Regulators
中文描述： FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PZFM7
封裝： PLASTIC, TO-220, 7 PIN
文件頁數(shù)： 2/12頁
文件大?。?/td> 264K
代理商： LT1581CT7-2.5
2
LT1581/LT1581-2.5
ABSOLUTE
AXI
U
RATIU
W
(Note 1)
V
POWER
Input Voltage................................................ 6V
V
CONTROL
Input Voltage ........................................... 13V
Operating Junction Temperature Range
Control Section......................................0
°
C to 125
°
C
Power Transistor...................................0
°
C to 150
°
C
Storage Temperature............................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
W
W
PACKAGE/ORDER I
FOR
ATIO
W
U
U
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. (Note 2)
PRECO
N
DITIO
N
I
N
G
100% Thermal Limit Functional Test
Consult factory for Industrial and Military grade parts.
LT1581CT7
LT1581CT7-2.5
ORDER PART
NUMBER
*PIN2 = NC FOR LT1581CT7, GND FOR LT1581CT7-2.5
T7 PACKAGE
7-LEAD PLASTIC TO-220
θ
JA
= 50
°
C/W
FRONT VIEW
TAB IS
OUTPUT
NC
V
CONTROL
V
OUTPUT
SENSE
NC/GND*
ADJUST
7
6
5
4
3
2
1
The
G
denotes specifications which apply over the full operating
PARAMETER
Output Voltage:
CONDITIONS
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 0mA
V
CONTROL
= 4V to 12V, V
POWER
= 3V to 5.5V, I
LOAD
= 0mA to 4A
V
CONTROL
= 4V to 12V, V
POWER
= 3.3V to 5.5V, I
LOAD
= 0mA to 10A
V
CONTROL
= 2.75V, V
POWER
= 2V, I
LOAD
= 10mA
V
CONTROL
= 2.7V to 12V, V
POWER
= 1.75V to 5.5V, I
LOAD
= 0mA to 4A
V
CONTROL
= 2.7V to 12V, V
POWER
= 2.05V to 5.5V, I
LOAD
= 0mA to 10A
V
CONTROL
= 3.65V to 12V, V
POWER
= 3V to 5.5V, I
LOAD
= 10mA
V
CONTROL
= 2.5V to 12V, V
POWER
= 1.75V to 5.5V, I
LOAD
= 10mA
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 0mA to 10A
V
CONTROL
= 2.75V, V
POWER
= 2.1V, I
LOAD
= 10mA to 10A
V
CONTROL
= 5V, V
POWER
= 3.3V, V
ADJ
= 0V (Note 4)
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 100mA
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 4A
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 7A
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 10A
V
CONTROL
= 2.75V, V
POWER
= 2.05V, I
LOAD
= 100mA
V
CONTROL
= 2.75V, V
POWER
= 2.05V, I
LOAD
= 4A
V
CONTROL
= 2.75V, V
POWER
= 2.05V, I
LOAD
= 7A
V
CONTROL
= 2.75V, V
POWER
= 2.05V, I
LOAD
= 10A
V
CONTROL
= 5V, V
POWER
= 3.3V, I
LOAD
= 0mA
MIN
2.485
2.475
2.475
1.243
1.237
1.237
TYP
2.500
2.500
2.500
1.250
1.250
1.250
1
1
1
1
3
5
20
40
70
5
20
40
70
6
60
11
11
80
MAX
2.515
2.525
2.525
1.257
1.263
1.263
3
3
10
5
10
10
50
100
170
10
50
100
170
10
120
UNITS
LT1581-2.5
V
V
V
V
V
V
G
G
Reference Voltage:
(V
ADJ
= 0V)
LT1581
G
G
Line Regulation: LT1581-2.5
G
G
mV
mV
mV
mV
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
μ
A
LT1581
Load Regulation: LT1581-2.5
G
G
LT1581 (V
ADJ
= 0V)
Minimum Load Current: LT1581
Control Pin Current: LT1581-2.5
(Note 5)
G
G
G
G
G
Control Pin Current: LT1581
(Note 5)
G
G
G
G
Ground Pin Current: LT1581-2.5
Adjust Pin Current: LT1581 (V
ADJ
= 0V) V
CONTROL
= 2.75V, V
POWER
= 2.05V, I
LOAD
= 10mA
Current Limit:
LT1581-2.5
V
CONTROL
= 5V, V
POWER
= 3.3V,
V
OUT
= 100mV
LT1581 (V
ADJ
= 0V)
V
CONTROL
= 2.75V, V
POWER
= 2.05V,
V
OUT
= 100mV
Ripple Rejection: LT1581-2.5
V
CONTROL
= V
POWER
= 5V Avg, V
RIPPLE
= 1V
P-P
, f
RIPPLE
= 120Hz,
I
OUT
= 4A, T
J
= 25
°
C
LT1581
V
CONTROL
= V
POWER
= 3.75V Avg, V
RIPPLE
= 1V
P-P
, f
RIPPLE
= 120Hz,
V
ADJ
= 0V, I
OUT
= 4A, T
J
= 25
°
C
Thermal Regulation
30ms Pulse
Thermal Resistance, Junction-to-Case
Control Circuitry/Power Transistor
G
G
G
G
10.1
10.1
55
A
A
dB
60
80
dB
0.004
0.65/2.50
0.020
%/W
°
C/W
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