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參數(shù)資料
| 型號： | LP2951 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 線性穩(wěn)壓 |
| 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） |
| 文件頁數(shù)： | 21/24頁 |
| 文件大?。?/td> | 244K |
| 代理商： | LP2951 |
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
,OUTPUT
VOL
TAGE
(V)
V
out
,OUTPUT
VOL
TAGE
(V)
V
out
-50
5.00
0
6.0
0.1
10
TA, AMBIENT TEMPERATURE (°C)
Vin, INPUT VOLTAGE (V)
LP2950/LP2951
BIAS
CURRENT
(mA)
IL, 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
RL = 50 kW
RL = 50 W
LP2951C
TA = 25°C
LP2951C
200
,OUTPUT
VOL
TAGE
(V)
V
out
0
6.0
Vin, INPUT VOLTAGE (V)
Figure 5. 5.0 V Dropout Characteristics with
RL = 50 W
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) |
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| LP2951-01AJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fixed & Adjustable Voltage Regulator |
| LP2951-02BJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fixed & Adjustable Voltage Regulator |
| LP295102BM | 制造商:Micrel Inc 功能描述: |
| LP2951-02BM | 功能描述:IC REG LDO ADJ .1A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| LP2951-02BM TR | 功能描述:IC REG LDO ADJ .1A 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
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