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. 177-0811
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. 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. 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. 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. 165-4663
Mfr. Part No.MCP1802T-5002I/OT
BrandMicrochip
kr 3,585
Each (On a Reel of 3000)
Units
- 5 V Fixed SOT-23 300mA Surface Mount 2 V 10 V 5 1 Positive 0.025mA ±2% -40 °C
RS Stock No. 910-1442
Mfr. Part No.MIC5200-5.0YS
BrandMicrochip
kr 9,222
Each (In a Pack of 10)
Units
- 5 V Fixed SOT-223 100mA Surface Mount 2.5 V 26 V 3+Tab 1 Positive - ±1% -40 °C
RS Stock No. 669-4941
Mfr. Part No.MCP1802T-1802I/OT
BrandMicrochip
kr 4,746
Each (In a Pack of 5)
Units
- 1.8 V Fixed SOT-23 300mA Surface Mount 2 V 10 V 5 1 Positive 0.025mA ±2% -40 °C
RS Stock No. 144-5894
Mfr. Part No.MIC5200-5.0YS
BrandMicrochip
kr 7,702
Each (In a Tube of 78)
Units
- 5 V Fixed SOT-223 100mA Surface Mount 2.5 V 26 V 3+Tab 1 Positive - ±1% -40 °C
RS Stock No. 669-4957
Mfr. Part No.MCP1802T-5002I/OT
BrandMicrochip
kr 4,746
Each (In a Pack of 5)
Units
- 5 V Fixed SOT-23 300mA Surface Mount 2 V 10 V 5 1 Positive 0.025mA ±2% -40 °C
RS Stock No. 704-7637
Mfr. Part No.MCP1804T-3302I/OT
BrandMicrochip
kr 5,98
Each
Units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2 V 28 V 5 1 Positive 0.05mA ±2% -40 °C
RS Stock No. 144-5892
Mfr. Part No.MIC29752WWT
BrandMicrochip
kr 113,917
Each (In a Tube of 30)
Units
- 1.25 → 26 V Adjustable TO-247 7.5A Through Hole 2.5 V 26 V 5 1 Positive - ±1% -40 °C
RS Stock No. 775-7450
Mfr. Part No.MCP1703T-5002E/CB
BrandMicrochip
kr 4,835
Each (On a Reel of 10)
Units
- 5 V Fixed SOT-23A 250mA Surface Mount 2.7 V 16 V 3 1 Positive 5µA ±2% -40 °C
RS Stock No. 912-6928
Mfr. Part No.MCP1804T-3302I/OT
BrandMicrochip
kr 4,568
Each (On a Reel of 3000)
Units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2 V 28 V 5 1 Positive 0.05mA ±2% -40 °C
RS Stock No. 669-4869
Mfr. Part No.MCP1701AT-3302I/CB
BrandMicrochip
kr 7,787
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. 823-4355
Mfr. Part No.TC1055-2.7VCT713
BrandMicrochip
kr 1,947
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. 761-7188
Mfr. Part No.MCP1754ST-3302E/MB
BrandMicrochip
kr 4,835
Each (In a Pack of 6)
Units
- 3.3 V Fixed SOT-89 150mA Surface Mount 3.6 V 16 V 3 1 Positive 0.056mA ±0.4% -40 °C
RS Stock No. 910-1408
Mfr. Part No.MIC29502WT
BrandMicrochip
kr 66,20
Each
Units
- 1.25 → 26 V Adjustable TO-220 5A Through Hole 2.5 V 26 V 5 1 Positive - ±1% -40 °C
RS Stock No. 755-9521
Mfr. Part No.MCP1754ST-3302E/CB
BrandMicrochip
kr 3,59
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. 889-5938
Mfr. Part No.MCP1703T-5002E/CB
BrandMicrochip
kr 3,666
Each (On a Reel of 3000)
Units
- 5 V Fixed SOT-23A 250mA Surface Mount 2.7 V 16 V 3 1 Positive 5µA ±2% -40 °C
RS Stock No. 165-1898
Mfr. Part No.TC1055-2.7VCT713
BrandMicrochip
kr 1,95
Each (On a Reel of 3000)
Units
- 2.7 V Fixed SOT-23 100mA Surface Mount 2.7 V 6.5 V 5 1 Positive - ±0.5% -40 °C