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. 162-9059
Mfr. Part No.NCP4586DSQ33T1G
kr 2,401
Each (On a Reel of 3000)
Units
- 3.3 V Fixed SC-82AB 200mA Surface Mount 1.7 V 6.5 V 4 1 Positive 58µA ±1% -40 °C
RS Stock No. 805-1927
Mfr. Part No.NCP4586DSQ33T1G
kr 5,516
Each (On a Tape of 25)
Units
- 3.3 V Fixed SC-82AB 200mA Surface Mount 1.7 V 6.5 V 4 1 Positive 58µA ±1% -40 °C
RS Stock No. 153-3422
Mfr. Part No.LT1086CT-5#PBF
kr 28,239
Each (In a Tube of 50)
Units
- 5 V Fixed TO-220 1.5A Through Hole - 20 V 3 1 Positive 5mA - 0 °C
RS Stock No. 923-3688
Mfr. Part No.LP2985-33DBVT
kr 3,146
Each (On a Reel of 250)
Units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.2 V 16 V 5 1 Positive 0.85mA ±1.5% -40 °C
RS Stock No. 660-6733
Mfr. Part No.LP2985-33DBVT
kr 4,257
Each (In a Pack of 10)
Units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.2 V 16 V 5 1 Positive 0.85mA ±1.5% -40 °C
RS Stock No. 545-5742
Mfr. Part No.LT1086CT-5#PBF
kr 43,57
Each
Units
- 5 V Fixed TO-220 1.5A Through Hole - 20 V 3 1 Positive 5mA - 0 °C
RS Stock No. 858-0835
Mfr. Part No.LT1084CT#PBF
kr 90,13
Each
Units
- 1.25 → 25 V Adjustable TO-220 5A Through Hole - 30 V 3 1 Positive - - 0 °C
RS Stock No. 145-1188
Mfr. Part No.LT1085CT-5#PBF
kr 50,097
Each (In a Tube of 50)
Units
- 5 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 177-0811
Mfr. Part No.MIC2920A-5.0WS
BrandMicrochip
kr 11,795
Each (In a Pack of 10)
Units
750 mV @ 400 mA 5 V Fixed SOT-223 400mA Surface Mount 2 V 26 V 3 + Tab 1 - 140 (Typ.)µA ±2% -40 °C
RS Stock No. 145-6800
Mfr. Part No.LT1084IT#PBF
kr 75,772
Each (In a Tube of 50)
Units
- 1.25 → 28.5 V Adjustable TO-220 5A Through Hole 1.5 V 30 V 3 1 Positive 10mA - -40 °C
RS Stock No. 545-5720
Mfr. Part No.LT1085CT-5#PBF
kr 75,17
Each
Units
- 5 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 785-7276
Mfr. Part No.NCP551SN50T1G
kr 3,928
Each (In a Pack of 10)
Units
- 5 V Fixed TSOP 150mA Surface Mount 0 V 12 V 5 1 Positive 8µA 2% -40 °C
RS Stock No. 165-4049
Mfr. Part No.MIC2920A-5.0WS-TR
BrandMicrochip
kr 8,951
Each (On a Reel of 2500)
Units
- 5 V Fixed SOT-223 400mA Surface Mount 2 V 26 V 3+Tab 1 Positive 140µA ±4% -40 °C
RS Stock No. 910-2013
Mfr. Part No.MIC2920A-5.0WS-TR
BrandMicrochip
kr 11,804
Each (In a Pack of 5)
Units
- 5 V Fixed SOT-223 400mA Surface Mount 2 V 26 V 3+Tab 1 Positive 140µA ±4% -40 °C
RS Stock No. 145-5869
Mfr. Part No.LT1084CT#PBF
kr 60,023
Each (In a Tube of 50)
Units
- 1.25 → 25 V Adjustable TO-220 5A Through Hole - 30 V 3 1 Positive - - 0 °C
RS Stock No. 177-0349
Mfr. Part No.MIC2920A-5.0WS
BrandMicrochip
kr 9,842
Each (In a Tube of 78)
Units
750 mV @ 400 mA 5 V Fixed SOT-223 400mA Surface Mount 2 V 26 V 3 + Tab 1 - 140µA ±2% -40 °C
RS Stock No. 779-9038
Mfr. Part No.LT1084IT#PBF
kr 113,26
Each
Units
- 1.25 → 28.5 V Adjustable TO-220 5A Through Hole 1.5 V 30 V 3 1 Positive 10mA - -40 °C
RS Stock No. 162-9538
Mfr. Part No.NCP551SN50T1G
kr 1,575
Each (On a Reel of 3000)
Units
- 5 V Fixed TSOP 150mA Surface Mount 0 V 12 V 5 1 Positive 8µA 2% -40 °C
RS Stock No. 535-8613
Mfr. Part No.LM1117IDT-3.3/NOPB
kr 13,18
Each (In a Pack of 5)
Units
- 3.3 V Fixed TO-252 800mA Surface Mount - 15 V 3 1 Positive - ±1% -40 °C
RS Stock No. 153-3330
Mfr. Part No.LT1763CS8-3.3#PBF
kr 26,824
Each (In a Tube of 100)
Units
- 3.3 V Fixed SOIC 500mA Surface Mount 1.8 V 20 V 8 1 Positive 0.03mA - -40 °C