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. 822-6853
Mfr. Part No.LT3008ETS8#TRMPBF
$5.564
Each (In a Pack of 5)
units
- 0.6 44.5 V Adjustable TSOT-23 20mA Surface Mount 2 V 45 V 8 1 Positive 3µA ±2% -40 °C
RS Stock No. 920-0142
Mfr. Part No.LT3008ETS8#TRMPBF
$2.836
Each (On a Reel of 500)
units
- 0.6 44.5 V Adjustable TSOT-23 20mA Surface Mount 2 V 45 V 8 1 Positive 3µA ±2% -40 °C
RS Stock No. 155-9378
Mfr. Part No.LT1084CT-12#PBF
$10.458
Each (In a Tube of 50)
units
- 11.76 12.24 V Fixed TO-220 5A Through Hole - 25 V 3 1 Positive 10mA - 0 °C
RS Stock No. 858-0838
Mfr. Part No.LT1084CT-12#PBF
$20.31
Each
units
- 11.76 12.24 V Fixed TO-220 5A Through Hole - 25 V 3 1 Positive 10mA - 0 °C
RS Stock No. 153-3325
Mfr. Part No.LT1761ES5-5#TRMPBF
$2.639
Each (On a Reel of 500)
units
- 5 V Fixed TSOT-23 100mA Surface Mount 1.8 V 20 V 5 1 Positive 0.02mA - -40 °C
RS Stock No. 411-895
Mfr. Part No.LT1761ES5-5#TRMPBF
$4.094
Each (In a Pack of 5)
units
- 5 V Fixed TSOT-23 100mA Surface Mount 1.8 V 20 V 5 1 Positive 0.02mA - -40 °C
RS Stock No. 145-1278
Mfr. Part No.LT3032EDE#PBF
$5.41
Each (In a Tube of 91)
units
- ±1.22 ±20 V Adjustable DFN ±150mA Surface Mount ±2.3 V ±20 V 14 2 Negative 30µA - -40 °C
RS Stock No. 423-557
Mfr. Part No.LT3080EST#PBF
$8.24
Each
units
- 0 30 V Adjustable SOT-223 1.1A Surface Mount 1.2 V 36 V 3+Tab 1 Positive - - -40 °C
RS Stock No. 917-3453
Mfr. Part No.LT3080EST#PBF
$4.452
Each (In a Tube of 78)
units
- 0 30 V Adjustable SOT-223 1.1A Surface Mount 1.2 V 36 V 3+Tab 1 Positive - - -40 °C
RS Stock No. 779-9606
Mfr. Part No.LT3032EDE#PBF
$8.15
Each (In a Pack of 2)
units
- ±1.22 ±20 V Adjustable DFN ±150mA Surface Mount ±2.3 V ±20 V 14 2 Negative 30µA - -40 °C
RS Stock No. 145-6357
Mfr. Part No.LT1085CT-12#PBF
$8.723
Each (In a Tube of 50)
units
- 12 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 545-5736
Mfr. Part No.LT1085CT-12#PBF
$12.95
Each
units
- 12 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 145-6606
Mfr. Part No.LT1964ES5-SD#TRMPBF
$3.963
Each (On a Reel of 500)
units
- -20 -1.2 V Adjustable TSOT-23 200mA Surface Mount -20 V 20 V 5 1 Negative 30mA - -40 °C
RS Stock No. 912-6350
Mfr. Part No.ADP3338AKCZ-3.3RL7
$2.61
Each (On a Reel of 500)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±0.8% -40 °C
RS Stock No. 779-9555
Mfr. Part No.LT1964ES5-SD#TRMPBF
$5.97
Each (In a Pack of 2)
units
- -20 -1.2 V Adjustable TSOT-23 200mA Surface Mount -20 V 20 V 5 1 Negative 30mA - -40 °C
RS Stock No. 411-908
Mfr. Part No.LT1964ES5-5#TRMPBF
$4.74
Each
units
- -5 V Fixed TSOT-23 200mA Surface Mount 0 V 40 V 5 1 Negative 0.03mA - -40 °C
RS Stock No. 697-7723
Mfr. Part No.ADP3338AKCZ-3.3RL7
$4.40
Each (In a Pack of 5)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±0.8% -40 °C
RS Stock No. 153-3327
Mfr. Part No.LT1964ES5-5#TRMPBF
$3.966
Each (On a Reel of 500)
units
- -5 V Fixed TSOT-23 200mA Surface Mount 0 V 40 V 5 1 Negative 0.03mA - -40 °C
RS Stock No. 153-3505
Mfr. Part No.LT1529CQ-5#PBF
$8.128
Each (In a Tube of 50)
units
- 5 V Fixed D2PAK 3A Surface Mount 3.8 V 15 V 6 1 Positive 0.05mA - 0 °C
RS Stock No. 411-958
Mfr. Part No.LT1763CS8-3.3#PBF
$7.12
Each
units
- 3.3 V Fixed SOIC 500mA Surface Mount 1.8 V 20 V 8 1 Positive 0.03mA - -40 °C