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. 917-3453
Mfr. Part No.LT3080EST#PBF
PHP133.543
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. 423-557
Mfr. Part No.LT3080EST#PBF
PHP224.46
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. 396-449
Mfr. Part No.LT3014EDD#PBF
PHP189.28
Each (In a Pack of 2)
units
- 1.22 → 60 V Adjustable DFN 20mA Surface Mount 3 V 80 V 8 1 Positive 0.007mA - -40 °C
RS Stock No. 153-3423
Mfr. Part No.LT1086CT-12#PBF
PHP164.725
Each (In a Tube of 50)
units
- 12 V Fixed TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °C
RS Stock No. 545-5764
Mfr. Part No.LT1086CT-12#PBF
PHP251.50
Each
units
- 12 V Fixed TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °C
RS Stock No. 153-3311
Mfr. Part No.LT3014EDD#PBF
PHP124.235
Each (In a Tube of 121)
units
- 1.22 → 60 V Adjustable DFN 20mA Surface Mount 3 V 80 V 8 1 Positive 0.007mA - -40 °C
RS Stock No. 919-9045
Mfr. Part No.LT1117CST-3.3PBF
PHP173.209
Each (In a Tube of 78)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive 10mA - 0 °C
RS Stock No. 761-8052
Mfr. Part No.LT1117CST-3.3#PBF
PHP273.73
Each
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive 10mA - 0 °C
RS Stock No. 160-2572
Mfr. Part No.ADP1710AUJZ-1.2-R7
PHP36.748
Each (On a Reel of 3000)
units
- 1.2 V Fixed TSOT 150mA Surface Mount 2.5 V 5.5 V 5 1 Positive - ±2% -40 °C
RS Stock No. 914-0475
Mfr. Part No.ADP125ARHZ-R7
PHP63.974
Each (On a Reel of 1000)
units
- 0.8 → 5 V Adjustable MSOP 500mA Surface Mount 2.3 V 5.5 V 8 2 - 210µA ±1% -40 °C
RS Stock No. 858-0835
Mfr. Part No.LT1084CT#PBF
PHP534.12
Each
units
- 1.25 → 25 V Adjustable TO-220 5A Through Hole - 30 V 3 1 Positive - - 0 °C
RS Stock No. 759-0437
Mfr. Part No.ADP125ARHZ
PHP102.01
Each (In a Pack of 5)
units
- 0.8 → 5 V Adjustable MSOP 500mA Surface Mount 2.3 V 5.5 V 8 5 Positive 0.045mA ±1% -40 °C
RS Stock No. 809-9935
Mfr. Part No.ADP1710AUJZ-1.2-R7
PHP74.154
Each (In a Pack of 5)
units
- 1.2 V Fixed TSOT 150mA Surface Mount 2.5 V 5.5 V 5 1 Positive - ±2% -40 °C
RS Stock No. 145-5869
Mfr. Part No.LT1084CT#PBF
PHP661.762
Each (In a Tube of 50)
units
- 1.25 → 25 V Adjustable TO-220 5A Through Hole - 30 V 3 1 Positive - - 0 °C
RS Stock No. 155-5375
Mfr. Part No.LT3021ES8-1.2#PBF
PHP211.457
Each (In a Tube of 100)
units
- 1.2 V Fixed SOIC 500mA Surface Mount 0.9 V 10 V 8 1 Positive 120µA - -40 °C
RS Stock No. 761-8093
Mfr. Part No.LT1129IQ#PBF
PHP370.26
Each
units
- 3.8 → 30 V Adjustable D2PAK 700mA Surface Mount 4.3 V 20 V 5 1 Positive 0.025mA - -40 °C
RS Stock No. 858-0854
Mfr. Part No.LT1964IS5-5#TRMPBF
PHP220.642
Each (In a Pack of 5)
units
- -5 V Fixed SOT-23 200mA Surface Mount - -2.2 V 5 1 Negative 30µA - -40 °C
RS Stock No. 153-3492
Mfr. Part No.LT1587CT-3.3#PBF
PHP497.517
Each (In a Tube of 50)
units
- 3.3 V Fixed TO-220 3A Through Hole 2.7 V 7 V 3 1 Positive 8mA - 0 °C
RS Stock No. 779-9612
Mfr. Part No.LT3085EMS8E#PBF
PHP237.68
Each (In a Pack of 2)
units
- 0 → 36 V Adjustable MSOP 500mA Surface Mount 1.2 V 36 V 8 1 Positive - 1% -40 °C
RS Stock No. 160-9942
Mfr. Part No.ADP3309ARTZ-3.3-R7
PHP63.869
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.8 V 12 V 5 1 Positive 1µA ±2.2% -20 °C