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. 858-0835
Mfr. Part No.LT1084CT#PBF
HK$89.85
Each
units
- 1.25 → 25 V Adjustable TO-220 5A Through Hole - 30 V 3 1 Positive - - 0 °C
RS Stock No. 145-5869
Mfr. Part No.LT1084CT#PBF
HK$58.232
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. 545-4884
Mfr. Part No.LT1085CT#PBF
HK$74.93
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. 145-5966
Mfr. Part No.LT1085CT#PBF
HK$48.575
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. 145-6800
Mfr. Part No.LT1084IT#PBF
HK$73.224
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. 779-9038
Mfr. Part No.LT1084IT#PBF
HK$110.24
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. 145-6047
Mfr. Part No.LT1763CS8-5#PBF
HK$27.548
Each (In a Tube of 100)
units
- 5 V Fixed SOIC 500mA Surface Mount 1.8 V 20 V 8 1 Positive 30µA - -40 °C
RS Stock No. 779-9423
Mfr. Part No.LT1763CS8-5#PBF
HK$41.18
Each (In a Pack of 2)
units
- 5 V Fixed SOIC 500mA Surface Mount 1.8 V 20 V 8 1 Positive 30µA - -40 °C
RS Stock No. 761-8611
Mfr. Part No.LT3080EDD#PBF
HK$38.82
Each
units
- 0 → 30 V Adjustable DFN 1.1A Surface Mount 1.2 V 36 V 8 1 Positive 1mA 1% -40 °C
RS Stock No. 145-6210
Mfr. Part No.LT3080EDD#PBF
HK$24.592
Each (In a Tube of 121)
units
- 0 → 30 V Adjustable DFN 1.1A Surface Mount 1.2 V 36 V 8 1 Positive 1mA 1% -40 °C
RS Stock No. 858-0838
Mfr. Part No.LT1084CT-12#PBF
HK$91.44
Each
units
- 11.76 → 12.24 V Fixed TO-220 5A Through Hole - 25 V 3 1 Positive 10mA - 0 °C
RS Stock No. 155-9378
Mfr. Part No.LT1084CT-12#PBF
HK$58.232
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. 145-5729
Mfr. Part No.LT1764EQ#PBF
HK$45.319
Each (In a Tube of 50)
units
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 2.7 V 20 V 6 1 Positive 1mA - -40 °C
RS Stock No. 545-5720
Mfr. Part No.LT1085CT-5#PBF
HK$73.13
Each
units
- 5 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 145-1189
Mfr. Part No.LT1584CT#PBF
HK$79.422
Each (In a Tube of 50)
units
- - Adjustable TO-220 7A Through Hole 2.5 V 7 V 3 1 Positive 8mA - 0 °C
RS Stock No. 545-5736
Mfr. Part No.LT1085CT-12#PBF
HK$73.13
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. 145-6357
Mfr. Part No.LT1085CT-12#PBF
HK$48.575
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. 545-6408
Mfr. Part No.LT1584CT#PBF
HK$119.61
Each
units
- - Adjustable TO-220 7A Through Hole 2.5 V 7 V 3 1 Positive 8mA - 0 °C
RS Stock No. 145-1188
Mfr. Part No.LT1085CT-5#PBF
HK$48.575
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. 506-3804
Mfr. Part No.LT1764EQ#PBF
HK$68.19
Each
units
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 2.7 V 20 V 6 1 Positive 1mA - -40 °C