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. 885-5404
Mfr. Part No.AP2204K-5.0TRG1
$0.564
Each (In a Pack of 40)
units
- 5 V Fixed SOT-23 200mA Surface Mount 2.3 V 24 V 5 1 Positive - - -40 °C
RS Stock No. 165-8693
Mfr. Part No.AP2204K-5.0TRG1
$0.199
Each (On a Reel of 3000)
units
- 5 V Fixed SOT-23 200mA Surface Mount 2.3 V 24 V 5 1 Positive - - -40 °C
RS Stock No. 828-7606
Mfr. Part No.AZ1117CR-3.3TRG1
$0.468
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-89 800mA Surface Mount - 15 V 3 1 Positive 6mA ±1% -20 °C
RS Stock No. 121-9654
Mfr. Part No.AZ1117CR-3.3TRG1
$0.167
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-89 800mA Surface Mount - 15 V 3 1 Positive 6mA ±1% -20 °C
RS Stock No. 122-3358
Mfr. Part No.AP2204K-ADJTRG1
$0.199
Each (On a Reel of 3000)
units
- 1.24 → 22 V Adjustable SOT-23 150mA Surface Mount 2.3 V 24 V 5 1 Positive 50µA - -40 °C
RS Stock No. 828-7404
Mfr. Part No.AP2204K-ADJTRG1
$0.564
Each (In a Pack of 50)
units
- 1.24 → 22 V Adjustable SOT-23 150mA Surface Mount 2.3 V 24 V 5 1 Positive 50µA - -40 °C
RS Stock No. 828-7429
Mfr. Part No.AP2210K-3.3TRG1
$0.224
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. 122-3365
Mfr. Part No.AP2210K-3.3TRG1
$0.145
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. 828-3509
Mfr. Part No.AP2112K-3.3TRG1
$0.55
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 80µA ±1.5% -40 °C
RS Stock No. 122-3379
Mfr. Part No.AZ1117CH-3.3TRG1
$0.134
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. 122-2926
Mfr. Part No.AP139-33WG-7
$0.652
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-25 300mA Surface Mount 2.7 V 5.5 V 5 1 Positive 60µA ±2% -40 °C
RS Stock No. 121-9647
Mfr. Part No.AP2112K-3.3TRG1
$0.167
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 80µA ±1.5% -40 °C
RS Stock No. 828-7609
Mfr. Part No.AZ1117CH-3.3TRG1
$0.441
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
RS Stock No. 122-3384
Mfr. Part No.AP7115-25SEG-7
$0.171
Each (On a Reel of 3000)
units
- 2.5 V Fixed SOT-353 150mA Surface Mount 2.5 V 5.5 V 5 1 Positive 80µA ±2% -40 °C
RS Stock No. 828-7656
Mfr. Part No.AP7115-25SEG-7
$0.488
Each (In a Pack of 50)
units
- 2.5 V Fixed SOT-353 150mA Surface Mount 2.5 V 5.5 V 5 1 Positive 80µA ±2% -40 °C
RS Stock No. 822-8795
Mfr. Part No.AP139-33WG-7
$1.266
Each (In a Pack of 20)
units
- 3.3 V Fixed SOT-25 300mA Surface Mount 2.7 V 5.5 V 5 1 Positive 60µA ±2% -40 °C
RS Stock No. 828-7331
Mfr. Part No.AP2121AK-3.3TRG1
$0.228
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 200 (Min)mA Surface Mount 2 V 6 V 5 1 Positive 50µA ±2% -40 °C
RS Stock No. 122-3351
Mfr. Part No.AP2114H-3.3TRG1
$0.16
Each (On a Reel of 4000)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.5 V 6 V 3+Tab 1 Positive 90µA ±1.5% -40 °C
RS Stock No. 770-4718
Mfr. Part No.AP7312-1233W6-7
$0.823
Each (On a Tape of 10)
units
- 1.2 V, 3.3 V Fixed SOT-26 150mA Surface Mount 2 V 6 V 6 2 Positive 80µA ±2% -40 °C
RS Stock No. 828-7381
Mfr. Part No.AP2138N-3.3TRG1
$0.254
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 250 (Min)mA Surface Mount 2.5 V 6.6 V 3 1 Positive 1.5µA ±2% -40 °C