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. 122-3364
Mfr. Part No.AP2210N-3.3TRG1
TWD3.00
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.5 V 13.2 V 3 1 Positive 100µA ±2% -40 °C
RS Stock No. 828-7426
Mfr. Part No.AP2210N-3.3TRG1
TWD4.60
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.5 V 13.2 V 3 1 Positive 100µA ±2% -40 °C
RS Stock No. 828-7570
Mfr. Part No.AZ1084CD-3.3TRG1
TWD14.50
Each (In a Pack of 20)
units
- 3.3 V Fixed TO-252 5A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS Stock No. 170-8927
Mfr. Part No.AZ1084CD-3.3TRG1
TWD5.90
Each (On a Reel of 2500)
units
- 3.3 V Fixed TO-252 5A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS Stock No. 122-2919
Mfr. Part No.AP1084DG-13
TWD20.40
Each (On a Reel of 2500)
units
- 1.25 → 3.3 V Adjustable TO-252 5A Surface Mount 4.7 V 12 V 3 1 Positive - - 0 °C
RS Stock No. 122-3365
Mfr. Part No.AP2210K-3.3TRG1
TWD3.00
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.5 V 13.2 V 5 1 Positive 100µA ±2% -40 °C
RS Stock No. 828-7429
Mfr. Part No.AP2210K-3.3TRG1
TWD4.60
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.5 V 13.2 V 5 1 Positive 100µA ±2% -40 °C
RS Stock No. 828-7410
Mfr. Part No.AP2204RA-3.3TRG1
TWD11.60
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-89 150mA Surface Mount 2.3 V 24 V 3 1 Positive 50µA - -40 °C
RS Stock No. 822-8758
Mfr. Part No.AP1084DG-13
TWD38.40
Each (In a Pack of 10)
units
- 1.25 → 3.3 V Adjustable TO-252 5A Surface Mount 4.7 V 12 V 3 1 Positive - - 0 °C
RS Stock No. 122-3360
Mfr. Part No.AP2204RA-3.3TRG1
TWD4.70
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-89 150mA Surface Mount 2.3 V 24 V 3 1 Positive 50µA - -40 °C
RS Stock No. 828-7573
Mfr. Part No.AZ1084CD-ADJTRG1
TWD14.50
Each (In a Pack of 20)
units
- - Adjustable TO-252 5A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS Stock No. 165-8348
Mfr. Part No.AZ1117D-ADJTRE1
TWD4.80
Each (On a Reel of 2500)
units
- 1.25 → 12 V Adjustable TO-252 1A Surface Mount - 15 V 3 1 Positive 10mA 2% -40 °C
RS Stock No. 828-7371
Mfr. Part No.AP2128K-3.3TRG1
TWD4.70
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 90µA ±2% -40 °C
RS Stock No. 122-3379
Mfr. Part No.AZ1117CH-3.3TRG1
TWD2.80
Each (On a Reel of 4000)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive 6mA ±1% -20 °C
RS Stock No. 921-0697
Mfr. Part No.AZ1117D-ADJTRE1
TWD13.40
Each (In a Pack of 30)
units
- 1.25 → 12 V Adjustable TO-252 1A Surface Mount - 15 V 3 1 Positive 10mA 2% -40 °C
RS Stock No. 828-7362
Mfr. Part No.AP2127K-3.3TRG1
TWD4.70
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 90µA ±2% -40 °C
RS Stock No. 170-8928
Mfr. Part No.AZ1084CD-ADJTRG1
TWD5.90
Each (On a Reel of 2500)
units
- - Adjustable TO-252 5A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS Stock No. 122-3355
Mfr. Part No.AP2128K-3.3TRG1
TWD2.70
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 90µA ±2% -40 °C
RS Stock No. 122-3354
Mfr. Part No.AP2127K-3.3TRG1
TWD2.70
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 90µA ±2% -40 °C
RS Stock No. 828-7609
Mfr. Part No.AZ1117CH-3.3TRG1
TWD9.10
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive 6mA ±1% -20 °C