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參數(shù)資料
| 型號(hào)： | LT1585CT-3.6 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
| 中文描述： | 3.6 V FIXED POSITIVE LDO REGULATOR, 1.4 V DROPOUT, PSFM3 |
| 封裝： | PLASTIC, TO-220, 3 PIN |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大?。?/td> | 148K |
| 代理商： | LT1585CT-3.6 |
2
LT1585-1.5/LT1585A-1.5
PACKAGE/ORDER I
FOR
ATIO
W
U
U
ABSOLUTE
AXI
U
RATIU
W
V
IN
............................................................................ 7V
Operating Junction Temperature Range
Control Section .................................. 0
°
C to 125
°
C
Power Transistor................................ 0
°
C to 150
°
C
W
W
PRECO
N
DITIO
U
100% Thermal Limit Functional Test
U
T PACKAGE
3-LEAD PLASTIC TO-220
θ
JA
= 50
°
C/W
FRONT VIEW
3
2
1
TAB IS
OUTPUT
V
IN
V
OUT
GND
LT1585CT-1.5
LT1585ACT-1.5
ORDER PART
NUMBER
Consult factory for Industrial and Military grade parts.
LT1585CM-1.5
LT1585ACM-1.5
ORDER PART
NUMBER
V
IN
V
OUT
GND
M PACKAGE
3-LEAD PLASTIC DD
θ
JA
= 30
°
C/W*
FRONT VIEW
TAB
IS
OUTPUT
3
2
1
PARAMETER
Output Voltage (Note 4)
CONDITIONS
V
IN
= 5V, T
J
= 25
°
C, I
OUT
= 0mA
3V
≤
V
IN
≤
7V, 0mA
≤
I
OUT
≤
I
FULL LOAD
3V
≤
V
IN
≤
7V, I
OUT
= 0mA
V
IN
= 5V, T
J
= 25
°
C, 0mA
≤
I
OUT
≤
I
FULL LOAD
MIN
TYP
1.5
1.5
0.005
0.05
0.05
1.200
5.25
6.00
7
72
0.004
0.5
0.03
0.003
MAX
UNITS
1.485 (–1%)
1.470 (–2%)
1.515 (+1%)
1.530 (+2%)
0.2
0.3
0.5
1.400
V
V
G
Line Regulation (Notes 2, 3)
Load Regulation
(Notes 2, 3, 4)
Dropout Voltage (Note 4)
Current Limit
%
%
%
V
A
A
G
V
OUT
= 1%, I
OUT
= I
FULL LOAD
LT1585-1.5, (V
IN
– V
OUT
) = 5.5V
LT1585A-1.5, (V
IN
– V
OUT
) = 5.5V
V
IN
= 5V
f = 120Hz, C
OUT
= 25
μ
F Tant., V
IN
= 4.5V, I
OUT
= I
FULL LOAD
T
A
= 25
°
C, 30ms Pulse
G
G
G
4.60
5.00
Quiescent Current
Ripple Rejection (Note 4)
Thermal Regulation
Temperature Stability
Long-Term Stability
RMS Output Noise
(% of V
OUT
)
Thermal Resistance
Junction to Case
G
13
mA
dB
G
60
0.02
%/W
G
%
%
%
T
A
= 125
°
C, 1000 Hrs.
T
A
= 25
°
C, 10Hz
≤
f
≤
10kHz
1.0
T Package: Control Circuitry/Power Transistor
M Package: Control Circuitry/Power Transistor
0.7/3.0
0.7/3.0
°
C/W
°
C/W
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
See thermal regulation specifications for changes in output voltage
due to heating effects. Load and line regulation are measured at a constant
junction temperature by low duty cycle pulse testing.
Note 3:
Line and load regulation are guaranteed up to the maximum
power dissipation (25W for the LT1585-1.5 in T package and 27.5W for
the LT1585A-1.5). Power dissipation is determined by input/output
differential and the output current. Guaranteed maximum output power
will not be available over the full input/output voltage range.
Note 4:
I
FULL LOAD
is defined as the maximum value of output load current
as a function of input-to-output voltage. I
FULL LOAD
is equal to 4.6A for the
LT1585-1.5 and 5A for the LT1585A-1.5. The LT1585-1.5/LT1585A-1.5
have constant current limit with changes in input-to-output voltage.
*WITH PACKAGE
SOLDERED TO 0.5
SQUARE INCH COPPER
AREA OVER BACKSIDE
GROUND PLANE OR
INTERNAL POWER PLANE.
θ
JA
CAN VARY FROM
20
°
C/W TO >40
°
C/W
WITH OTHER MOUNTING
TECHNIQUES
The
G
denotes specifications which apply over the specified operating
(Note 1)
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
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