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LT1117CST-3.3#TR 参数 Datasheet PDF下载

LT1117CST-3.3#TR图片预览
型号: LT1117CST-3.3#TR
PDF下载: 下载PDF文件 查看货源
内容描述: [LT1117 - 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V,3.3V, 5V; Package: SOT; Pins: 3; Temperature Range: 0°C to 70°C]
分类和应用: 稳压器
文件页数/大小: 12 页 / 202 K
品牌: LINER [ LINEAR TECHNOLOGY ]
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LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
ELECTRICAL CHARACTERISTICS
The
q
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
J
= 25°C.
PARAMETER
Load Regulation
LT1117
LT1117-2.85
LT1117-3.3
LT1117-5
CONDITIONS
(V
IN
– V
OUT
) = 3V, 10mA
I
OUT
800mA (Note 2)
V
IN
= 4.25V, 0
I
OUT
800mA (Note 2)
V
IN
= 4.75V, 0
I
OUT
800mA (Note 2)
V
IN
= 6.5V, 0
I
OUT
800mA (Note 2)
I
OUT
= 100mA, 0°C
T
J
125°C (Note 3)
I
OUT
= 500mA, 0°C
T
J
125°C (Note 3)
I
OUT
= 800mA, 0°C
T
J
125°C (Note 3)
I
OUT
= 100mA, – 40°C
T
J
< 0°C (Note 3)
I
OUT
= 500mA, – 40°C
T
J
< 0°C (Note 3)
I
OUT
= 800mA, – 40°C
T
J
< 0°C (Note 3)
Current Limit
Minimum Load Current
Quiescent Current
LT1117
LT1117-2.85
LT1117-3.3
LT1117-5
(V
IN
– V
OUT
) = 5V, T
J
= 25°C,
(V
IN
– V
OUT
) = 15V (Note 4)
V
IN
10V
V
IN
15V
V
IN
15V
T
A
= 25°C, 30ms Pulse
f
RIPPLE
= 120Hz, (V
IN
– V
OUT
) = 3V, V
RIPPLE
= 1V
P-P
10mA
I
OUT
800mA, 1.4V
(V
IN
– V
OUT
)
10V
T
A
= 125°C, 1000Hrs
(% of V
OUT
), 10Hz
f
10kHz
(Junction-to-Case, at Tab)
q
q
q
q
q
q
q
q
q
q
q
MIN
TYP
0.1
1
1
1
1.00
1.05
1.10
1.00
1.05
1.10
MAX
0.4
10
10
15
1.10
1.15
1.20
1.20
1.25
1.30
1200
5
10
10
10
0.1
120
5
UNITS
%
mV
mV
mV
V
V
V
V
V
V
mA
mA
mA
mA
mA
%/W
dB
µA
µA
%
%
%
°C/W
Dropout Voltage
800
950
1.7
5
5
5
0.01
Thermal Regulation
Ripple Rejection
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise
Thermal Resistance
60
75
55
0.2
0.5
0.3
0.003
15
Note 1:
Absolute Maximum Ratings are those values beyond which the life
to the device may be imparied.
Note 2:
See thermal regulation specification for changes in output voltage
due to heating effects. Load regulation and line regulation are measured at
a constant junction temperature by low duty cycle pulse testing.
Note 3:
Dropout voltage is specified over the full output current range of
the device. Dropout voltage is defined as the minimum input/output
differential measured at the specified output current. Test points and limits
are also shown on the Dropout Voltage curve.
Note 4:
Minimum load current is defined as the minimum output current
required to maintain regulation.
TYPICAL PERFOR A CE CHARACTERISTICS
Minimum Operating Current
(Adjustable Device)
4
MINIMUM OPERATING CURRENT (mA)
1.25
OUTPUT VOLTAGE DEVIATION (%)
SHORT CIRCUIT CURRENT (A)
3
T
J
= 125°C
T
J
= 25°C
2
T
J
= –55°C
1
0
0
5
10
15
INPUT/OUTPUT DIFFERENTIAL (V)
20
U W
LT1117 • TPC02
Short-Circuit Current
0.10
T
J
= 125°C
T
J
= 25°C
0.75
0.05
0
– 0.05
– 0.10
– 0.15
Load Regulation
I
LOAD
= 800mA
1.00
0.50
0.25
0
0
5
10
INPUT/OUTPUT DIFFERENTIAL (V)
15
– 0.20
–50
–25
0
25
50
75
TEMPERATURE (°C)
100
125
LT1117 • TPC03
LT1117 • TPC04
3