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. 910-1685
Mfr. Part No.MIC5219-3.3YM5-TR
BrandMicrochip
R 28.758
Each (In a Pack of 5)
units
- 3.3 V Fixed SOT-23 500mA Surface Mount 2.5 V 12 V 5 1 Positive 8µA ±2% -40 °C
RS stock no. 165-4039
Mfr. Part No.MIC5219-3.3YM5-TR
BrandMicrochip
R 10.967
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 500mA Surface Mount 2.5 V 12 V 5 1 Positive 8µA ±2% -40 °C
RS stock no. 698-9044
Mfr. Part No.MCP1700T-3302E/TT
BrandMicrochip
R 11.94
Each
units
- 3.3 V Fixed SOT-23 250mA Surface Mount 2.3 V 6 V 3 1 Positive 0.0016mA ±2% -40 °C
RS stock no. 887-7429
Mfr. Part No.MCP1700T-3302E/TT
BrandMicrochip
R 4.563
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 250mA Surface Mount 2.3 V 6 V 3 1 Positive 0.0016mA ±2% -40 °C
RS stock no. 912-2916
Mfr. Part No.MCP1703T-3302E/MB
BrandMicrochip
R 6.78
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-89 250mA Surface Mount 2.7 V 16 V 3 1 Positive 5µA 2% -40 °C
RS stock no. 770-9524
Mfr. Part No.MCP1703T-3302E/MB
BrandMicrochip
R 11.256
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-89 250mA Surface Mount 2.7 V 16 V 3 1 Positive 5µA 2% -40 °C
RS stock no. 165-4193
Mfr. Part No.MIC29502WT
BrandMicrochip
R 100.467
Each (In a Tube of 50)
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. 910-1408
Mfr. Part No.MIC29502WT
BrandMicrochip
R 121.47
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. 669-5178
Mfr. Part No.MCP1826S-3302E/DB
BrandMicrochip
R 11.214
Each (In a Pack of 5)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.3 V 6 V 3+Tab 1 Positive 0.12mA ±2% -40 °C
RS stock no. 669-4907
Mfr. Part No.MCP1703T-3302E/CB
BrandMicrochip
R 8.812
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-23A 250mA Surface Mount 2.7 V 16 V 3 1 Positive 0.002mA ±2% -40 °C
RS stock no. 889-6042
Mfr. Part No.MCP1826S-3302E/DB
BrandMicrochip
R 9.37
Each (In a Tube of 78)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.3 V 6 V 3+Tab 1 Positive 0.12mA ±2% -40 °C
RS stock no. 770-9486
Mfr. Part No.MCP1703A-3302E/DB
BrandMicrochip
R 10.22
Each (In a Pack of 6)
units
- 3.3 V Fixed SOT-223 250mA Surface Mount 2.7 V 16 V 3 1 Positive 5µA 2% -40 °C
RS stock no. 889-5250
Mfr. Part No.MCP1703T-3302E/CB
BrandMicrochip
R 6.663
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23A 250mA Surface Mount 2.7 V 16 V 3 1 Positive 0.002mA ±2% -40 °C
RS stock no. 165-4712
Mfr. Part No.MCP1825S-3302E/AB
BrandMicrochip
R 11.383
Each (In a Tube of 50)
units
- 3.3 V Fixed TO-220 500mA Through Hole 2.1 V 6 V 3 1 Positive 0.12mA ±0.5% -40 °C
RS stock no. 669-5083
Mfr. Part No.MCP1825S-3302E/AB
BrandMicrochip
R 13.526
Each (In a Pack of 5)
units
- 3.3 V Fixed TO-220 500mA Through Hole 2.1 V 6 V 3 1 Positive 0.12mA ±0.5% -40 °C
RS stock no. 146-0191
Mfr. Part No.MCP1703A-3302E/DB
BrandMicrochip
R 8.584
Each (In a Tube of 78)
units
- 3.3 V Fixed SOT-223 250mA Surface Mount 2.7 V 16 V 3 1 Positive 5µA 2% -40 °C
RS stock no. 165-4199
Mfr. Part No.MIC29302WT
BrandMicrochip
R 29.656
Each (In a Tube of 50)
units
- 1.25 → 26 V Adjustable TO-220 3A Through Hole 2.5 V 26 V 5 1 Positive - ±1% -40 °C
RS stock no. 165-4664
Mfr. Part No.MCP1824T-1802E/OT
BrandMicrochip
R 5.377
Each (On a Reel of 3000)
units
- 1.8 V Fixed SOT-23 300mA Surface Mount 2.1 V 6 V 5 1 Positive 0.12mA ±2.5% -40 °C
RS stock no. 144-5789
Mfr. Part No.MCP1802T-3002I/OT
BrandMicrochip
R 6.516
Each (On a Reel of 3000)
units
- 3 V Fixed SOT-23 300mA Surface Mount 2 V 10 V 5 1 Positive 0.025mA ±2% -40 °C
RS stock no. 669-4945
Mfr. Part No.MCP1802T-3002I/OT
BrandMicrochip
R 14.40
Each (In a Pack of 5)
units
- 3 V Fixed SOT-23 300mA Surface Mount 2 V 10 V 5 1 Positive 0.025mA ±2% -40 °C