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參數(shù)資料
| 型號： | SPX2937T3-2.5 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 500mA Low Dropout Voltage Regulators |
| 中文描述： | 500mA的低壓差穩(wěn)壓器 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 133K |
| 代理商： | SPX2937T3-2.5 |
Rev. 10/30/00
SPX2937
ELECTRICAL CHARACTERISTICS
at
V
IN
= V
O
+ 5V, I
O
= 500mA, C
O
= 10
μ
F, unless otherwise specified. Limits in
Boldface
type apply over the entire operating temperature range. All other specifications are T
A
= 25
°
C.
PARAMETER
CONDITIONS
Min Typ Max
Output Voltage
5mA
≤
I
O
≤
500mA
9.70
9.50
10.5
Line Regulation
V
O
+2V
≤
V
IN
≤
20V
I
O
=5mA
Load Regulation
5mA
≤
I
O
≤
500mA
10
100
SPX2937-10
SPX2937-12
Min Typ Max
11.64
11.40
36
SPX2937-15
Min Typ Max
14.55
14.25
45
UNITS
10.0
10.3
12.0
12.36
12.60
120
15.0
15.45
15.75
150
V
30
100
mV
12
120
15
150
mV
Dropout Voltage
I
L
= 50 mA
I
L
= 500mA
V
O
+ 2V
≤
V
IN
≤
20V
I
O
= 5mA
V
IN
=V
O
+5V
I
O
=500mA
10Hz- 100kHz
I
O
= 5mA
0.5
250
1.0
10
20
110
0.5
2
10
360
250
1.0
10
20
110
0.5
2
10
450
250
1.0
10
20
mV
V
mA
mA
μ
V
RMS
Quiescent Current
2
10
300
Output Noise
Voltage
Long Term
Stability
Short Circuit
Current
Maximum Line
Transient
Reverse Polarity
DC Input Voltage
Reverse Polarity
Transient Input
Voltage
51
45
63
44
56
mV/ 1000Hr
1.0
0.6
1.0
0.6
1.0
0.6
A
R
O
= 100
T
≤
100ms
R
O
= 100
R
O
= 100
T
≤
100ms
60
75
60
75
60
75
V
-15
-15
-50
-30
-30
-75
-15
-15
-50
-30
-30
-75
-15
-15
-50
-30
-30
-75
V
V
APPLICATION HINTS
EXTERNAL CAPACITORS
The stability of the SPX2937 requires a 10
μ
F or greater capacitor between output and ground. Oscillation could occur without this capacitor. Most
types of tantalum or aluminum electrolytic works fine here. For operations below -25
°
C solid tantalum is recommended since the many aluminum
types have electrolytes that freeze at about -30
°
C. The ESR of about 5
or less and resonant frequency above 500 kHz are the most important
parameters in the value of the capacitor. The capacitor value may be increased without limit.
At lower values of output current, less output capacitance is required for stability. For the currents below 10mA the value of the capacitor can be
reduced to 22
μ
F and 0.15
μ
F for 1mA.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPX2937T3-3.3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Low Dropout Voltage Regulators |
| SPX2937T3-5.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Low Dropout Voltage Regulators |
| SPX2937T3-8.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Low Dropout Voltage Regulators |
| SPX2937U3-10 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Low Dropout Voltage Regulators |
| SPX2937U3-12 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:500mA Low Dropout Voltage Regulators |
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