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參數(shù)資料
| 型號(hào)： | LT1085-220M |
| 廠(chǎng)商： | SEMELAB LTD |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TV06; No. of Contacts:128; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight |
| 中文描述： | ADJUSTABLE POSITIVE LDO REGULATOR, 1.5 V DROPOUT, MSFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁(yè)數(shù)： | 2/3頁(yè) |
| 文件大?。?/td> | 29K |
| 代理商： | LT1085-220M |
Prelim. 10/95
LT1085
–
220M
–
05
LT1085
–
05
–
220M
LT1085
–
12
–
220M
MILITARY VERSION
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
VO
Output Voltage
V
REF
Reference Voltage
REG
(LINE)
Line Regulation
REG
(LOAD)
Load Regulation
See notes 1,2
V
D
Dropout Voltage
See note 3
Output
Voltage Test Conditions
V
IN
= 6.5 to 20V
T
J
=
–
55 to 150
°
C
V
IN
= 13.5V to 25V
T
J
=
–
55 to 150
°
C
V
IN
–
V
OUT
= 1.5 to 15V
T
J
=
–
55 to 150
°
C
V
IN
= 6.5 to 20V
I
O
= 0
V
IN
= 13.5 to 25V
I
O
= 0
V
IN
–
V
OUT
= 1.5 to 15V
I
LOAD
= 10mA
V
IN
= 8V
I
O
= 0 to 3A
V
IN
= 15V
I
O
= 0 to 3A
V
IN
–
V
OUT
= 3V
I
O
= 10mA to 3A
D
V
OUT
= 50mV
I
OUT
= 3A
D
V
OUT
= 120mV
I
OUT
= 3A
D
V
REF
= 1%
I
OUT
= 3A
Parameter
Min.
Typ. Max.
Unit
I
O
= 0 to 3A
I
O
= 0 to 3A
I
O
= 10mA to 3A
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
T
J
=
–
55 to 150
°
C
4.90
5
5.10
11.76
12
12.24
1.225
1.25
1.270
0.5
10
1
10
1
25
2
25
0.015
0.2
0.035
0.2
5
20
10
35
12
36
24
72
0.1
0.3
0.2
0.4
1.3
1.5
1.3
1.5
1.3
1.5
5
12
ADJ.
5
12
ADJ.
5
12
ADJ.
5
12
ADJ.
ELECTRICAL CHARACTERISTICS
(T
J
= 25
°
C unless otherwise stated)
V
mV
%
mV
%
V
DESCRIPTION
The LT1085 is designed to provide 3A with higher efficiency than currently available devices. All internal circuitry is
designed to operate down to 1V input to output differential and the dropout voltage is fully specified as a function of load
current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents.
On-chip trimming adjusts the reference output voltage to 1%. Current limit is also trimmed, minimising the stress on both
the regulator and power source circuitry under overload conditions.
The LT1085 is pin compatible with older 3 terminal adjustable regulators. A 10
m
F output capacitor is required on these
new devices; however, this is usually included in most regulator designs.
Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the LT1085 quiescent
current flows into the load, increasing efficiency.
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