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參數(shù)資料
| 型號(hào)： | LP2954A |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5V and Adjustable Micropower Low-Dropout Voltage Regulators |
| 中文描述： | 5V和可調(diào)微功率低壓差穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大?。?/td> | 336K |
| 代理商： | LP2954A |
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Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Operating Junction Temperature
Range
LP2954AI/LP2954I
40C to +125C
Storage Temperature Range
Lead Temperature
(Soldering, 5 seconds)
Power Dissipation (Note 2)
Input Supply Voltage
ESD Rating
65C to +150C
260C
Internally Limited
20V to +30V
2 kV
Electrical Characteristics
Limits in standard typeface are for T
= 25C,
bold typeface applies over the 40C to +125C temperature range
. Limits
are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Un-
less otherwise noted: V
IN
= 6V, I
L
= 1 mA, C
L
= 2.2 μF.
Symbol
Parameter
Conditions
Typical
2954AI
2954I
Units
Min
4.975
4.940
4.930
Max
5.025
5.060
5.070
100
Min
4.950
4.900
4.880
Max
5.050
5.100
5.120
150
V
O
Output Voltage
5.0
V
1 mA
≤
I
L
≤
250 mA
(Note 3)
5.0
20
Output Voltage
Temp. Coefficient
Line Regulation
ppm/C
V
IN
= 6V to 30V
0.03
0.10
0.20
%
0.20
0.40
Load Regulation
I
L
= 1 to 250 mA
I
L
= 0.1 to 1 mA
(Note 4)
I
L
= 1 mA
0.16
0.20
0.04
0.20
0.30
%
V
IN
–V
O
Dropout Voltage
(Note 5)
60
100
150
300
420
400
520
600
800
150
180
2
2.5
6
8
28
33
170
210
100
150
300
420
400
520
600
800
150
180
2
2.5
6
8
28
33
170
210
mV
I
L
= 50 mA
240
I
L
= 100 mA
310
I
L
= 250 mA
470
I
GND
Ground Pin Current
(Note 6)
I
L
= 1 mA
90
μA
I
L
= 50 mA
1.1
mA
I
L
= 100 mA
4.5
I
L
= 250 mA
21
I
GND
Ground Pin
Current at Dropout
(Note 6)
Current Limit
V
IN
= 4.5V
120
μA
I
LIMIT
V
OUT
= 0V
380
500
530
0.2
500
530
0.2
mA
Thermal Regulation
(Note 7)
0.05
%/W
e
n
Output Noise
Voltage
(10 Hz to 100 kHz)
C
L
= 2.2 μF
400
μV RMS
C
L
= 33 μF
260
I
L
= 100 mA
C
L
=33μF(Note 9)
80
www.national.com
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP2954AISX | 5V and Adjustable Micropower Low-Dropout Voltage Regulators |
| LP2954AIM | 5V and Adjustable Micropower Low-Dropout Voltage Regulators |
| LP2954AIT | 5V and Adjustable Micropower Low-Dropout Voltage Regulators |
| LP2954IM | 5V and Adjustable Micropower Low-Dropout Voltage Regulators |
| LP2954IT | 5V and Adjustable Micropower Low-Dropout Voltage Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2954AIM | 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 |
| LP2954AIM/NOPB | 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 |
| LP2954AIM/NOPB | 制造商:Texas Instruments 功能描述:Voltage Regulator IC |
| LP2954AIMX | 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 |
| LP2954AIMX/NOPB | 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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