參數(shù)資料
型號(hào)： LP2952A
廠商： National Semiconductor Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Adjustable Micropower Low-Dropout Voltage Regulators
中文描述： 可調(diào)微功率低壓差穩(wěn)壓器
文件頁(yè)數(shù)： 4/22頁(yè)
文件大小： 1050K
代理商： LP2952A
All Voltage Options
Electrical Characteristics
(Continued)
Limits in standard typeface are for T
J
= 25C,
bold typeface
applies over the full operating temperature range. Limits are guar-
anteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless other-
wise specified: V
IN
= V
O
(NOM) + 1V, I
L
= 1 mA, C
L
= 2.2 μF for 5V parts and 4.7μF for 3.3V parts. Feedback pin is tied to V
Tap pin, Output pin is tied to Output Sense pin.
(Continued)
Symbol
Parameter
Conditions
Typical LP2952AI, LP2953AI,
LP2952AI-3.3,
LP2953AI-3.3,
LP2953AM
(Notes 16, 17)
Min
0.04
LP2952I, LP2953I,
LP2952I-3.3,
LP2953I-3.3
Units
Max
0.16
Min
Max
0.20
Output Voltage Load
Regulation (Note 6)
I
L
= 1 mA to 250 mA
%
I
L
= 0.1 mA to 1 mA
0.20
0.30
V
IN
–V
O
Dropout Voltage
(Note 7)
I
L
= 1 mA
60
100
150
300
420
400
520
600
800
170
200
2
2.5
6
8
28
33
210
240
140
100
150
300
420
400
520
600
800
170
200
2
2.5
6
8
28
33
210
240
140
mV
I
L
= 50 mA
240
I
L
= 100 mA
310
I
L
= 250 mA
470
I
GND
Ground Pin Current
(Note 8)
I
L
= 1 mA
130
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
V
IN
= V
O
(NOM) 0.5V
I
L
= 100 μA
V
SHUTDOWN
≤
1.1V
165
μA
I
GND
Ground Pin Current at
Shutdown (Note 8)
Current Limit
105
μA
I
LIMIT
V
OUT
= 0
380
500
530
0.2
500
530
0.2
mA
Thermal Regulation
(Note 10)
0.05
%/W
e
n
Output Noise Voltage
(10 Hz to 100 kHz)
I
L
= 100 mA
C
L
= 4.7 μF
C
L
= 33 μF
C
L
= 33 μF (Note 11)
(Note 12)
400
260
80
1.230
μV
RMS
V
REF
Reference Voltage
1.215
1.205
1.245
1.255
0.1
0.2
1.205
1.190
1.255
1.270
0.2
0.4
V
Reference Voltage Line
Regulation
V
IN
= 2.5V to V
O
(NOM) + 1V
V
IN
= V
O
(NOM) + 1V to 30V
(Note 13)
I
REF
= 0 to 200 μA
0.03
%
Reference Voltage Load
Regulation
0.25
0.4
0.8
%
0.6
1.0
Reference Voltage
Temp. Coefficient
(Note 5)
20
ppm/C
L
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP2952AI 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Adjustable Micropower Low-Dropout Voltage Regulators
LP2952AI-3.3 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Adjustable Micropower Low-Dropout Voltage Regulators
LP2952AIM 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
LP2952AIM/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
LP2952AIM-3.3 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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