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. 398-518
Mfr. Part No.TS2937CP33 ROG
MYR3.393
Each (In a Pack of 20)
units
- 3.3 V Fixed TO-252 500mA Surface Mount -18 V 26 V 3 1 Positive 0.2mA ±2% -40 °C
RS Stock No. 169-8941
Mfr. Part No.TS2937CP33 ROG
MYR1.57
Each (On a Reel of 2500)
units
- 3.3 V Fixed TO-252 500mA Surface Mount -18 V 26 V 3 1 Positive 0.2mA ±2% -40 °C
RS Stock No. 398-619
Mfr. Part No.TS2940CZ50 C0G
MYR4.277
Each (In a Pack of 20)
units
- 5 V Fixed TO-220 1A Through Hole -18 V 26 V 3 1 Positive 0.075mA ±2% -40 °C
RS Stock No. 398-625
Mfr. Part No.TS9011SCX RFG
MYR0.708
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-23 250mA Surface Mount - 12 V 3 1 Positive 0.002mA ±2% -40 °C
RS Stock No. 146-2239
Mfr. Part No.TS2940CZ50 C0G
MYR2.807
Each (In a Tube of 50)
units
- 5 V Fixed TO-220 1A Through Hole -18 V 26 V 3 1 Positive 0.075mA ±2% -40 °C
RS Stock No. 169-8939
Mfr. Part No.TS1117BCW33 RPG
MYR0.695
Each (On a Reel of 2500)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 4 1 Positive 8mA ±2% 0 °C
RS Stock No. 146-2241
Mfr. Part No.TS5205CX533 RFG
MYR0.642
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-25 150mA Surface Mount 2.5 V 16 V 5 1 Positive 0.00001mA ±1.5% -40 °C
RS Stock No. 169-8949
Mfr. Part No.TS9011SCX RFG
MYR0.588
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 250mA Surface Mount - 12 V 3 1 Positive 0.002mA ±2% -40 °C
RS Stock No. 398-708
Mfr. Part No.TS5205CX533 RFG
MYR0.716
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-25 150mA Surface Mount 2.5 V 16 V 5 1 Positive 0.00001mA ±1.5% -40 °C
RS Stock No. 398-499
Mfr. Part No.TS1117BCW33 RPG
MYR1.245
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 4 1 Positive 8mA ±2% 0 °C
RS Stock No. 169-8950
Mfr. Part No.TS9011SCY RMG
MYR0.651
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-89 250mA Surface Mount - 12 V 4 1 Positive 0.002mA ±2% -40 °C
RS Stock No. 398-629
Mfr. Part No.TS9011SCY RMG
MYR1.007
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-89 250mA Surface Mount - 12 V 4 1 Positive 0.002mA ±2% -40 °C