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. 153-3327
Mfr. Part No.LT1964ES5-5#TRMPBF
R 38.825
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. 411-908
Mfr. Part No.LT1964ES5-5#TRMPBF
R 70.35
Each
units
- -5 V Fixed TSOT-23 200mA Surface Mount 0 V 40 V 5 1 Negative 0.03mA - -40 °C
RS stock no. 145-5869
Mfr. Part No.LT1084CT#PBF
R 114.775
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. 858-0835
Mfr. Part No.LT1084CT#PBF
R 183.00
Each
units
- 1.25 → 25 V Adjustable TO-220 5A Through Hole - 30 V 3 1 Positive - - 0 °C
RS stock no. 154-6174
Mfr. Part No.LT1763CS8-2.5#PBF
R 52.112
Each (In a Tube of 100)
units
- 2.5 V Fixed SOIC 500mA Surface Mount 20 V 1.8 V 8 1 Positive 0.03mA - -40 °C
RS stock no. 761-8406
Mfr. Part No.LT1763CS8-2.5#PBF
R 84.58
Each
units
- 2.5 V Fixed SOIC 500mA Surface Mount 20 V 1.8 V 8 1 Positive 0.03mA - -40 °C
RS stock no. 779-9038
Mfr. Part No.LT1084IT#PBF
R 217.73
Each
units
- 1.25 → 28.5 V Adjustable TO-220 5A Through Hole 1.5 V 30 V 3 1 Positive 10mA - -40 °C
RS stock no. 761-8033
Mfr. Part No.LT1086IM#PBF
R 100.48
Each
units
- 2.85 → 12 V Adjustable D2PAK 1.5A Surface Mount - 30 V 3 1 Positive 10mA - -40 °C
RS stock no. 158-0370
Mfr. Part No.LT1086CT-3.3#PBF
R 54.185
Each (In a Tube of 50)
units
- 3.3 V Fixed TO-220 1.5A Through Hole - 20 V 3 1 Positive 5mA - 0 °C
RS stock no. 145-6800
Mfr. Part No.LT1084IT#PBF
R 137.84
Each (In a Tube of 50)
units
- 1.25 → 28.5 V Adjustable TO-220 5A Through Hole 1.5 V 30 V 3 1 Positive 10mA - -40 °C
RS stock no. 901-3254
Mfr. Part No.LT1086CT-3.3#PBF
R 86.38
Each (In a Pack of 2)
units
- 3.3 V Fixed TO-220 1.5A Through Hole - 20 V 3 1 Positive 5mA - 0 °C
RS stock no. 145-5966
Mfr. Part No.LT1085CT#PBF
R 91.584
Each (In a Tube of 50)
units
- 1.25 → 28.5 V Adjustable TO-220 3A Through Hole 2.55 V 30 V 3 1 Positive - - 0 °C
RS stock no. 919-9042
Mfr. Part No.LT1086IMPBF
R 62.971
Each (In a Tube of 50)
units
- 2.85 → 12 V Adjustable D2PAK 1.5A Surface Mount - 30 V 3 1 Positive 10mA - -40 °C
RS stock no. 545-5269
Mfr. Part No.LT1085CM#PBF
R 166.14
Each
units
- 1.25 → 25 V Adjustable D2PAK 3A Surface Mount 2.55 V 30 V 3 1 Positive - - 0 °C
RS stock no. 545-4884
Mfr. Part No.LT1085CT#PBF
R 153.07
Each
units
- 1.25 → 28.5 V Adjustable TO-220 3A Through Hole 2.55 V 30 V 3 1 Positive - - 0 °C
RS stock no. 145-1188
Mfr. Part No.LT1085CT-5#PBF
R 96.186
Each (In a Tube of 50)
units
- 5 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS stock no. 155-5378
Mfr. Part No.LT3022EMSE#PBF
R 78.275
Each (In a Tube of 37)
units
- 0.2 → 9.5 V Adjustable MSOP 1A Surface Mount 0.9 V 10 V 16 1 Positive 400µA - -40 °C
RS stock no. 858-0832
Mfr. Part No.LT1084CT-5#PBF
R 172.62
Each
units
- 4.9 → 5.1 V Fixed TO-220 5A Through Hole - 20 V 3 1 Positive 10mA - 0 °C
RS stock no. 919-9045
Mfr. Part No.LT1117CST-3.3PBF
R 51.545
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. 411-958
Mfr. Part No.LT1763CS8-3.3#PBF
R 84.05
Each
units
- 3.3 V Fixed SOIC 500mA Surface Mount 1.8 V 20 V 8 1 Positive 0.03mA - -40 °C