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参数资料
| 型号： | LT1580IR-2.5#TR |
| 厂商： | Linear Technology |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC REGULATOR LDO 2.5V 7A DDPAK-7 |
| 标准包装： | 750 |
| 应用： | 转换器，Intel Pentium? |
| 输入电压： | 1.79 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 2.5V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-8，D²Pak（7 引线+接片），TO-263CA |
| 供应商设备封装： | D2PAK-7 |
| 包装： | 带卷 (TR) |
LT1580/LT1580-2.5
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum V POWER : LT1580-2.5
(V POWER – V OUT )
Minimum V POWER : LT1580
(V POWER – V OUT )
(V ADJ = 0V)
CONDITIONS
V CONTROL = 5V, I LOAD = 100mA
V CONTROL = 5V, I LOAD = 1A
V CONTROL = 5V, I LOAD = 4A, T J = 25 ° C
V CONTROL = 5V, I LOAD = 4A
V CONTROL = 5V, I LOAD = 7A, T J = 25 ° C
V CONTROL = 5V, I LOAD = 7A, 0 ° C ≤ T J ≤ 125 ° C
V CONTROL = 5V, I LOAD = 6.5A, – 40 ° C ≤ T J ≤ 0 ° C
V CONTROL = 2.75V, I LOAD = 100mA
V CONTROL = 2.75V, I LOAD = 1A
V CONTROL = 2.75V, I LOAD 2.75A
V CONTROL = 2.75V, I LOAD = 4A, T J = 25 ° C
V CONTROL = 2.75V, I LOAD = 4A
V CONTROL = 2.75V, I LOAD = 7A, T J = 25 ° C
V CONTROL = 2.75V, I LOAD = 7A, 0 ° C ≤ T J ≤ 125 ° C
V CONTROL = 2.75V, I LOAD = 6.5A, – 40 ° C ≤ T J ≤ 0 ° C
q
q
q
q
q
q
q
MIN
TYP
0.10
0.15
0.34
0.54
0.70
0.70
0.10
0.15
0.26
0.34
0.54
0.70
0.70
MAX
0.17
0.22
0.40
0.50
0.62
0.80
0.80
0.17
0.22
0.38
0.40
0.50
0.62
0.80
0.80
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Unless otherwise specified V OUT = V SENSE . For the LT1580
adjustable device V ADJ = 0V.
Note 2: For the LT1580, dropout is caused by either minimum control
voltage (V CONTROL ) or minimum power voltage (V POWER ). Both parameters
are specified with respect to the output voltage. The specifications represent
Note 3: For the LT1580 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 4: The control pin current is the drive current required for the output
transistor. This current will track output current with roughly a 1:100 ratio.
The minimum value is equal to the quiescent current of the device.
the minimum input/output voltage required to maintain 1% regulation.
TYPICAL PERFOR M A N CE CHARACTERISTICS
Control Pin Current
Dropout Voltage —
140
vs Output Current
2
Minimum Control Voltage
1.0
Minimum Power Voltage
120
INDICATES GUARANTEED TEST POINTS
0 ° C ≤ T J ≤ 125 ° C
INDICATES GUARANTEED TEST POINTS
0 ° C ≤ T J ≤ 125 ° C
INDICATES GUARANTEED TEST POINTS
0 ° C ≤ T J ≤ 125 ° C
100
80
DATA SHEET LIMIT
1
DATA SHEET LIMIT
0.5
DATA SHEET LIMIT
60
TYPICAL
DEVICE
T J = 125 ° C
T J = 25 ° C
T J = 125 ° C
40
20
T J = 25 ° C
0
0
1
2
3
4
5
6
7
0
0
1
2
3
4
5
6
7
0
0
1
2
3
4
5
6
7
4
OUTPUT CURRENT (A)
1580 G01
OUTPUT CURRENT (A)
1580 G02
OUTPUT CURRENT (A)
1580 G03
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