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. 847-2882
Mfr. Part No.XRP6272ITC5TR-F
BrandEXAR
$1.009
Each (In a Pack of 10)
units
- 5 V, 0.7 → 5 V Adjustable, Fixed TO-252 2A Surface Mount 1.8 V 6 V 5 1 Positive 30µA ±2% -40 °C
RS Stock No. 686-5765
Mfr. Part No.SP6205EM5-L/TR
BrandEXAR
$0.635
Each (In a Pack of 10)
units
- - Adjustable SOT-23 500mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS Stock No. 913-4193
Mfr. Part No.SP6205EM5-L-3-3/TR
BrandEXAR
$0.401
Each (On a Reel of 2500)
units
- 3.3 V Fixed SOT-23 500mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS Stock No. 686-5866
Mfr. Part No.SPX3819M5-L-1-2/TR
BrandEXAR
$0.85
Each (In a Pack of 10)
units
- 1.2 V Fixed SOT-23 500mA Surface Mount 2.5 V 16 V 5 1 Positive 0.09mA ±1% -40 °C
RS Stock No. 170-4437
Mfr. Part No.SP6205EM5-L/TR
BrandEXAR
$0.435
Each (On a Reel of 2500)
units
- - Adjustable SOT-23 500mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS Stock No. 913-4219
Mfr. Part No.SPX29302T5-L/TR
BrandEXAR
$1.745
Each (On a Reel of 500)
units
- 1.25 → 16 V Adjustable D2PAK (TO-263) 3A Surface Mount - 16 V 5 1 Positive 40mA ±1% -40 °C
RS Stock No. 847-2888
Mfr. Part No.SPX3819M5-L-3-3/TR
BrandEXAR
$0.802
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-23 100mA Surface Mount 2.5 V 16 V 5 1 Positive 8µA 1% -40 °C
RS Stock No. 686-5768
Mfr. Part No.SP6201EM5-L-3-3/TR
BrandEXAR
$0.789
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-23 200mA Surface Mount 2.5 V 6 V 5 1 Positive 0.2mA ±2% -40 °C
RS Stock No. 170-4511
Mfr. Part No.SPX29302T5-L
BrandEXAR
$2.326
Each (In a Tube of 50)
units
- 1.25 → 16 V Adjustable D2PAK (TO-263) 3A Surface Mount 2.8 V 16 V 5 1 Positive 60mA 1% -40 °C
RS Stock No. 686-5875
Mfr. Part No.SPX5205M5-L/TR
BrandEXAR
$0.508
Each (In a Pack of 10)
units
- - Adjustable SOT-23 150mA Surface Mount 2.5 V 16 V 5 1 Positive 0.07mA ±1% -40 °C
RS Stock No. 686-5774
Mfr. Part No.SP6205EM5-L-3-3/TR
BrandEXAR
$1.021
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-23 500mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS Stock No. 170-4443
Mfr. Part No.SPX3819M5-L-1-2/TR
BrandEXAR
$0.37
Each (On a Reel of 2500)
units
- 1.2 V Fixed SOT-23 500mA Surface Mount 2.5 V 16 V 5 1 Positive 0.09mA ±1% -40 °C
RS Stock No. 778-0851
Mfr. Part No.SPX3819M5-L-1-5
BrandEXAR
$0.448
Each (In a Pack of 10)
units
- 1.5 V Fixed SOT-23 500mA Surface Mount 2.5 V 16 V 5 1 Positive 90µA ±2% -40 °C
RS Stock No. 686-5878
Mfr. Part No.SPX5205M5-L-3-3/TR
BrandEXAR
$0.64
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.5 V 16 V 5 1 Positive 0.07mA ±1% -40 °C
RS Stock No. 146-1858
Mfr. Part No.SPX3819M5-L-3-3/TR
BrandEXAR
$0.428
Each (On a Reel of 2500)
units
- 3.3 V Fixed SOT-23 100mA Surface Mount 2.5 V 16 V 5 1 Positive 8µA 1% -40 °C
RS Stock No. 686-5761
Mfr. Part No.SP6203EM5-L-2-8/TR
BrandEXAR
$0.549
Each (In a Pack of 10)
units
- 2.8 V Fixed SOT-23 300mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS Stock No. 177-7096
Mfr. Part No.SP6203EM5-L-2-8/TR
BrandEXAR
$0.345
Each (On a Reel of 3000)
units
- 2.8 V Fixed SOT-23 300mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS Stock No. 170-4441
Mfr. Part No.SPX1117M3-L/TR
BrandEXAR
$0.238
Each (On a Reel of 2500)
units
- 1.25 → 15 V Adjustable SOT-223 800mA Surface Mount 2.6 V 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS Stock No. 769-5532
Mfr. Part No.SPX3819S-L-5-0
BrandEXAR
$0.65
Each (In a Pack of 10)
units
- 5 V Fixed SOIC 500mA Surface Mount 2.5 V 16 V 8 1 Positive 8µA ±2% -40 °C
RS Stock No. 686-5838
Mfr. Part No.SPX1117M3-L/TR
BrandEXAR
$0.274
Each (In a Pack of 25)
units
- 1.25 → 15 V Adjustable SOT-223 800mA Surface Mount 2.6 V 15 V 3+Tab 1 Positive 5mA ±1% -40 °C