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參數(shù)資料
| 型號(hào)： | NCV2951 |
| 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(100mA，低功耗低壓差穩(wěn)壓器) |
| 中文描述： | 100毫安，低功耗，低壓差穩(wěn)壓器（100mA的，低功耗低壓差穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 6/24頁(yè) |
| 文件大小： | 244K |
| 代理商： | NCV2951 |
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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 collector-base 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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCV2951ACD3.3R2 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:100 mA, Low Power Low Dropout Voltage Regulator |
| NCV2951ACD-3.3R2 | 功能描述:低壓差穩(wěn)壓器 - LDO 3.3V 100mA 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 |
| NCV2951ACD3.3R2G | 功能描述:低壓差穩(wěn)壓器 - LDO 3.3V 100mA w/Error Flag 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 |
| NCV2951ACDR2 | 功能描述:低壓差穩(wěn)壓器 - LDO 1.25-29V ADJ 100mA 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 |
| NCV2951ACDR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 1.25-29V ADJ 100mA w/Error Flag 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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