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參數(shù)資料
| 型號： | LP2950ACZ-3.0G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 100 mA, Low Power Low Dropout Voltage Regulator |
| 中文描述： | 3 V FIXED POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PBCY3 |
| 封裝： | LEAD FREE, PLASTIC, TO-92, 3 PIN |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 204K |
| 代理商： | LP2950ACZ-3.0G |
LP2950, LP2951, NCV2951
http://onsemi.com
6
DEFINITIONS
Dropout Voltage
The input/output voltage differential
at which the regulator output no longer maintains regulation
against further reductions in input voltage. Measured when
the output drops 100 mV below its nominal value (which is
measured at 1.0 V differential), dropout voltage is affected
by junction temperature, load current and minimum input
supply requirements.
Line Regulation
The change in output voltage for a
change in input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that average chip temperature is not significantly
affected.
Load Regulation
The change in output voltage for a
change in load current at constant chip temperature.
Maximum Power Dissipation
The maximum total
device dissipation for which the regulator will operate
within specifications.
Bias Current
Current which is used to operate the
regulator chip and is not delivered to the load.
Output Noise Voltage
The RMS ac voltage at the
output, with constant load and no input ripple, measured
over a specified frequency range.
Leakage Current
Current drawn through a bipolar
transistor collectorbase junction, under a specified
collector voltage, when the transistor is “off”.
Upper Threshold Voltage
Voltage applied to the
comparator input terminal, below the reference voltage
which is applied to the other comparator input terminal,
which causes the comparator output to change state from a
logic “0” to “1”.
Lower Threshold Voltage
Voltage applied to the
comparator input terminal, below the reference voltage
which is applied to the other comparator input terminal,
which causes the comparator output to change state from a
logic “1” to “0”.
Hysteresis
The difference between Lower Threshold
voltage and Upper Threshold voltage.
25
°
C
Figure 2. Quiescent Current
,
Vo
,
Vo
50
5.00
0
6.0
0.1
10
T
A
, AMBIENT TEMPERATURE (
°
C)
V
in
, INPUT VOLTAGE (V)
L
I
L
, LOAD CURRENT (mA)
Figure 3. 5.0 V Dropout Characteristics over
Load
Figure 4. Output Voltage versus Temperature
1.0
10
100
1.0
2.0
3.0
4.0
5.0
6.0
0
50
100
150
1.0
0.1
0.01
5.0
4.0
3.0
2.0
1.0
0
4.99
4.98
4.97
4.96
4.95
R
L
= 50 k
R
L
= 50
LP2951C
T
A
= 25
°
C
LP2951C
200
,
Vo
0
6.0
V
in
, INPUT VOLTAGE (V)
Figure 5. 5.0 V Dropout Characteristics with
R
L
= 50
1.0
2.0
3.0
4.0
5.0
3.0
2.0
1.0
0
6.0
5.0
4.0
125
°
C
40
°
C
LP2951C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP2950CN-33 | 100mA LOW DROPOUT VOLTAGE REGULATOR |
| LP2950AT-3.0 | 100 mA Low Dropout Voltage Regulators |
| LP2950CT-3.0 | 100 mA Low Dropout Voltage Regulators |
| LP2950AS | 100 mA Low Dropout Voltage Regulators |
| LP2950AT | 100 mA Low Dropout Voltage Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2950ACZ5.0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| LP2950ACZ-5.0 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP2950ACZ-5.0 | 制造商:Texas Instruments 功能描述:IC V REG LDO +5.0V 2950 TO-92-3 |
| LP2950ACZ-5.0/LFT1 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP2950ACZ-5.0/LFT2 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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