Low Dropout Voltage Regulators

Low dropout voltage regulators are types of linear regulators that provide an inexpensive way of regulating output voltage with few external components. Linear regulators are used to maintain a steady voltage in electronic devices. Low dropout voltage regulators can regulate output voltage even when it's very close to the supply voltage. They have low noise and good ripple rejection making them crucial to maintaining a stable power supply in any power-management system.


What are low dropout voltage regulators used for?


Low dropout voltage regulators help to maintain system voltage independent of battery. This makes them useful for portable applications, as well as for equipment that needs a stable voltage while minimising the supply. You're likely to find low dropout voltage regulators in devices such as smoke detectors or alarm systems.


Choosing the right low dropout voltage regulator


There are various factors to consider when choosing the right regulator. These include required output voltage, maximum load current, minimum dropout voltage and the type and range of input voltage. Low dropout voltage regulators are the right choice if a more precise output voltage is necessary and there is a low power dissipation.


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Description Price Dropout Voltage at Maximum Current Output Voltage Output Type Package Type Maximum Output Current Mounting Type Minimum Input Voltage Maximum Input Voltage Pin Count Number of Outputs Polarity Quiescent Current Accuracy Minimum Operating Temperature
RS Stock No. 177-7273
Mfr. Part No.LT1129IS8#PBF
kr 40,533
Each (In a Tube of 100)
Units
- 3.75 → 30 V Adjustable SOIC 700mA Surface Mount -30 V 30 V 8 1 Positive 50µA - -40 °C
RS Stock No. 162-9522
Mfr. Part No.NCP500SN26T1G
kr 1,317
Each (On a Reel of 3000)
Units
- 2.6 V Fixed TSOP 150mA Surface Mount 0 V 6 V 5 1 Positive 300µA 2.5% -
RS Stock No. 145-1153
Mfr. Part No.LT1521CMS8#PBF
kr 31,182
Each (In a Tube of 50)
Units
- 3.8 → 20 V Adjustable MSOP 300mA Surface Mount -20 V 20 V 8 1 Positive 5µA - 0 °C
RS Stock No. 155-9377
Mfr. Part No.LT1084CT-5#PBF
kr 60,295
Each (In a Tube of 50)
Units
- 4.9 → 5.1 V Fixed TO-220 5A Through Hole - 20 V 3 1 Positive 10mA - 0 °C
RS Stock No. 163-2407
Mfr. Part No.LM2931AD-5.0R2G
kr 1,515
Each (On a Reel of 2500)
Units
- 5 V Fixed SOIC 100mA Surface Mount 14 V 40 V 8 1 Positive - ±3.8% -40 °C
RS Stock No. 823-5566
Mfr. Part No.TLE4275GATMA1
BrandInfineon
kr 27,418
Each (In a Pack of 5)
Units
- 4.9 → 5.1 V Fixed D2PAK (TO-263) - Surface Mount 5.5 V 42 V 5 1 Positive 180µA 2% -40 °C
RS Stock No. 145-6826
Mfr. Part No.TLV70212DBVT
kr 2,05
Each (On a Reel of 250)
Units
- 1.2 → 4.8 V Fixed SOT-23 300mA Surface Mount 2 V 5.5 V 5 1 Positive 35µA 2% -40 °C
RS Stock No. 900-8781
Mfr. Part No.NCP170AXV180T2G
kr 0,869
Each (In a Pack of 50)
Units
- 1.8 V Fixed SOT-563 - Surface Mount 2.2 V 5.5 V 6 1 Positive 0.9µA ±1% -
RS Stock No. 534-4923
Mfr. Part No.LP2950CZ-3.3/NOPB
kr 6,78
Each
Units
- 3.3 V Fixed TO-92 100mA Through Hole - 30 V 3 1 Positive - ±0.5% -40 °C
RS Stock No. 545-4890
Mfr. Part No.LT1086CT#PBF
kr 42,37
Each
Units
- - Adjustable TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °C
RS Stock No. 669-4869
Mfr. Part No.MCP1701AT-3302I/CB
BrandMicrochip
kr 3,90
Each (In a Pack of 10)
Units
- 3.3 V Fixed SOT-23A 150mA Surface Mount - 10 V 3 1 Positive 0.002mA ±2% -40 °C
RS Stock No. 785-7210
Mfr. Part No.NCP500SN26T1G
kr 1,364
Each (In a Pack of 10)
Units
- 2.6 V Fixed TSOP 150mA Surface Mount 0 V 6 V 5 1 Positive 300µA 2.5% -
RS Stock No. 100-3892
Mfr. Part No.LM3480IM3-5.0/NOPB
kr 3,989
Each (On a Reel of 1000)
Units
- 5 V Fixed SOT-23 100mA Surface Mount - 30 V 3 1 Positive - ±5% -40 °C
RS Stock No. 537-9200
Mfr. Part No.LP38693MP-3.3/NOPB
kr 5,868
Each (In a Pack of 5)
Units
- 3.3 V Fixed SOT-223 500mA Surface Mount 2.7 V 10 V 5+Tab 1 Positive - ±2% -40 °C
RS Stock No. 755-9521
Mfr. Part No.MCP1754ST-3302E/CB
BrandMicrochip
kr 3,37
Each (In a Pack of 5)
Units
- 3.3 V Fixed SOT-23A 150mA Surface Mount 3.3 V 16 V 3 1 Positive 0.09mA 2% -40 °C
RS Stock No. 828-7400
Mfr. Part No.AP2204K-3.3TRG1
kr 2,925
Each (In a Pack of 50)
Units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.3 V 24 V 5 1 Positive 50µA - -40 °C
RS Stock No. 504-5115
Mfr. Part No.LM3480IM3-5.0/NOPB
kr 8,514
Each (In a Pack of 5)
Units
- 5 V Fixed SOT-23 100mA Surface Mount - 30 V 3 1 Positive - ±5% -40 °C
RS Stock No. 169-8206
Mfr. Part No.NJM2388F10
kr 6,098
Each (In a Tube of 50)
Units
- 10 V Fixed TO-220F 1A Through Hole - 35 V 4 1 Positive 5mA ±2% -40 °C
RS Stock No. 823-4355
Mfr. Part No.TC1055-2.7VCT713
BrandMicrochip
kr 2,002
Each (In a Pack of 20)
Units
- 2.7 V Fixed SOT-23 100mA Surface Mount 2.7 V 6.5 V 5 1 Positive - ±0.5% -40 °C
RS Stock No. 851-6812
Mfr. Part No.LT1521CMS8#PBF
kr 47,26
Each (In a Pack of 2)
Units
- 3.8 → 20 V Adjustable MSOP 300mA Surface Mount -20 V 20 V 8 1 Positive 5µA - 0 °C
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