參數(shù)資料
型號(hào)： LP2957A
廠商： National Semiconductor Corporation
文件頁數(shù)： 2/14頁
文件大?。?/td> 378K
代理商： LP2957A
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
Storage Temperature Range
40C to +125C
65C to +150C
Lead Temperature
(Soldering, 5 Seconds)
Power Dissipation (Note 2)
Input Supply Voltage
Shutdown Input
ESD Rating
260C
Internally Limited
20V to +30V
0.3V to +30V
2 kV
Electrical Characteristics
Limits in standard typeface are for T
J
= 25C, and limits in
boldface type
apply over the full operating temperature range. Un-
less otherwise specified: V
IN
= 6V, I
L
= 1 mA, C
L
= 2.2 μF, V
SD
= 3V.
Symbol
Parameter
Conditions
Typical
LP2957AI
Min
4.975
4.940
4.930
LP2957I
Min
4.950
4.900
4.880
Units
Max
5.025
5.060
5.070
Max
5.050
5.100
5.120
V
O
Output Voltage
(Note 9)
5.0
V
1 mA
≤
I
L
≤
250 mA
(Note 3)
5.0
Output Voltage
Temperature
Coefficient
Line Regulation
20
100
150
ppm/C
V
IN
= 6V to 30V
0.03
0.10
0.20
%
0.20
0.40
Load Regulation
I
L
= 1 mA to 250 mA
I
L
= 0.1 mA to 1 mA
(Note 4)
I
L
= 1 mA
0.04
0.16
0.20
0.20
0.30
%
V
IN
–V
O
Dropout Voltage
(Note 5)
60
100
150
300
420
400
520
600
800
200
230
2
2.5
6
8
28
33
180
200
230
250
100
150
300
420
400
520
600
800
200
230
2
2.5
6
8
28
33
180
200
230
250
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
150
μA
I
L
= 50 mA
1.1
mA
I
L
= 100 mA
3
I
L
= 250 mA
16
I
GND
Ground Pin Current
in Shutdown (Note 6)
Ground Pin Current
at Dropout (Note 6)
Off-State Output
Pulldown Current
Output Leakage
in Shutdown
Current Limit
I
L
= 0
V
SD
= 0.4V
V
IN
= 4.5V
I
L
= 0.1 mA
V
IN
= 5.3V
V
O
= 5V, V
SD
= 0.4V
I
(SD IN)
≥
1 μA
V
IN
= 30V, V
OUT
= 0V
R
L
= 1
130
μA
I
GND
180
μA
I
O
(Sink)
I
O
(Off)
I
LIMIT
50
30
20
30
20
mA
3
10
20
500
530
10
20
500
530
μA
400
mA
Thermal Regulation
(Note 7)
0.05
0.2
0.2
%/W
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP2957A-12 WAF 制造商:Texas Instruments 功能描述:
LP2957AIS/NOPB 功能描述:IC REG LDO 5V .25A TO-263-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 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:5-VFBGA 供應(yīng)商設(shè)備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR
LP2957AIS/NOPB 制造商:Texas Instruments 功能描述:Voltage Regulator IC
LP2957AISX 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
LP2957AISX/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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