Linear Regulators (LDO) | LP2950
概览
LP2950 和 LP2951 是微型功耗、低漏 (LDO) 线性电压稳压器，特别适用于以极低输入-输出压差保持正确的调节。此类器件具有 75 µA 的极低静止偏置电流，能够提供超过 100 mA 的供应输出电流。提供内部电流和高温限制保护。LP2951 LDO 线性电压稳压器具有三个附加功能。第一个是 Errorbar 输出，可用于向外部电路发出超出调节范围情况的信号，或者用作微处理器加电重置。第二个功能用于将输出电压预设为 5.0 V、3.3 V 或 3.0 V 输出（具体取决于版本）或在 1.25 V 至 29 V 范围进行编程。它由带引脚输出电阻分压器组成，可直接访问误差放大器反馈输入。第三个功能为关断输入，可允许逻辑电平信号关断或打开稳压器输出。由于此类器件的低输入-输出电压压差和偏置电流规格，适用于需要较长电池使用寿命的电池供电计算机、消费品和工业设备。LP2950 采用三引脚盒 29 和 DPAK 封装，LP2951 采用八引脚双列直插 SO-8 和 Micro-8 表面贴装封装。带“A”后缀器件的初始输出电压允差为 +/-0.5%。
- Automotive
- Low Quiescent Bias Current of 75 mA
- Low Input-to-Output Voltage Differential of 50 mV at 100 mA and 380 mV at 100 mA
- 5.0 V, 3.3 V or 3.0 V +/- 0.5% Allows Use as a Regulator or Reference
- Extremely Tight Line and Load Regulation
- Requires Only a 1.0 mF Output Capacitor for Stability
- Internal Current and Thermal Limiting
- LP2951 also has Error(bar) Output Signals an Out of Regulation Condition
- LP2951 also has Output Programmable from 1.25 V to 29 V
- LP2951 also has Logic Level Shutdown Input
- Pb-Free Packages are Available
Buy/Parametrics Table
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Obsolete
Pb
A
H
P
DPAK-3
1
260
TUBE
75
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
Price N/A
More Details
LP2950ACDT-3.3RG
Active
Pb
A
H
P
DPAK-3
1
260
REEL
2500
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2713
More Details
Obsolete
Pb
A
H
P
DPAK-3
1
260
REEL
2500
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
Price N/A
More Details
LP2950ACDT-5.0G
Active
Pb
A
H
P
DPAK-3
1
260
TUBE
75
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2925
More Details
LP2950ACDT-5RKG
Active
Pb
A
H
P
DPAK-3
1
260
REEL
2500
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3013
More Details
LP2950ACZ-3.0G
Active
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2667
More Details
LP2950ACZ-3.0RAG
Active
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3513
More Details
LP2950ACZ-3.3G
Active
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2559
More Details
LP2950ACZ-3.3RAG
Active
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3859
More Details
LP2950ACZ-5.0G
Active
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2693
More Details
LP2950ACZ-5.0RAG
Active
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2992
More Details
Obsolete
Pb
A
H
P
DPAK-3
1
260
TUBE
75
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
Price N/A
More Details
LP2950CDT-3.0RKG
Active
Pb
A
H
P
DPAK-3
1
260
REEL
2500
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2863
More Details
LP2950CDT-3.3G
Active
Pb
A
H
P
DPAK-3
1
260
TUBE
75
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3236
More Details
LP2950CDT-3.3RKG
Active
Pb
A
H
P
DPAK-3
1
260
REEL
2500
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2507
More Details
LP2950CDT-5.0G
Active
Pb
A
H
P
DPAK-3
1
260
TUBE
75
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2371
More Details
LP2950CDT-5.0RKG
Active
Pb
A
H
P
DPAK-3
1
260
REEL
2500
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2443
More Details
LP2950CZ-3.0G
Active
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3384
More Details
LP2950CZ-3.0RAG
Active
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2667
More Details
LP2950CZ-3.3G
Active
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3275
More Details
LP2950CZ-3.3RAG
Active
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3067
More Details
LP2950CZ-5.0G
Active
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.2761
More Details
LP2950CZ-5.0RAG
Active
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3115
More Details
LP2950CZ-5.0RPG
Active
Pb
A
H
P
TO-92
NA
0
FNFLD
2000
N
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
$0.3363
More Details
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