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. 516-5865
Mfr. Part No.NCP1117DT33G
$0.662
Each (In a Pack of 5)
units
- 3.3 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 102-3504
Mfr. Part No.NCP1117DT33G
$0.295
Each (In a Tube of 75)
units
- 3.3 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 516-5871
Mfr. Part No.NCP1117DT50G
$0.772
Each (In a Pack of 5)
units
- 5 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 170-3504
Mfr. Part No.NCP1117DT12G
$0.285
Each (In a Tube of 75)
units
- 12 V Fixed DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% 0 °C
RS Stock No. 102-3505
Mfr. Part No.NCP1117DT50G
$0.271
Each (In a Tube of 75)
units
- 5 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 785-7184
Mfr. Part No.NCP1117DTARKG
$0.594
Each (On a Tape of 20)
units
- 1.25 → 18.8 V Adjustable DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% 0 °C
RS Stock No. 162-9470
Mfr. Part No.NCP1117DTARKG
$0.302
Each (On a Reel of 2500)
units
- 1.25 → 18.8 V Adjustable DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% 0 °C
RS Stock No. 162-9541
Mfr. Part No.NCP563SQ15T1G
$0.411
Each (On a Reel of 3000)
units
- 1.5 V Fixed SC-82 280mA Surface Mount - 6 V 4 1 Positive 6µA 2% -40 °C
RS Stock No. 785-7298
Mfr. Part No.NCP563SQ15T1G
$0.582
Each (On a Tape of 10)
units
- 1.5 V Fixed SC-82 280mA Surface Mount - 6 V 4 1 Positive 6µA 2% -40 °C
RS Stock No. 166-2173
Mfr. Part No.KA378R33TU
$1.468
Each (In a Tube of 50)
units
- 3.3 V Fixed TO-220F 3A Through Hole - 35 V 4 1 Positive 10mA - -20 °C
RS Stock No. 807-8773
Mfr. Part No.KA378R33TU
$1.624
Each (In a Pack of 5)
units
- 3.3 V Fixed TO-220F 3A Through Hole - 35 V 4 1 Positive 10mA - -20 °C
RS Stock No. 827-0553
Mfr. Part No.NCP702SN28T1G
$0.432
Each (In a Pack of 25)
units
- 2.8 V Fixed TSOP 550mA Surface Mount 2 V 5.5 V 5 1 Positive 16µA ±2% -40 °C
RS Stock No. 145-2870
Mfr. Part No.LP2950ACDT-5.0G
$0.541
Each (In a Tube of 75)
units
- 5 V Fixed DPAK 100mA Surface Mount - 30 V 3 1 Positive 75µA 1% -40 °C
RS Stock No. 163-0149
Mfr. Part No.NCP702SN28T1G
$0.62
Each (On a Reel of 3000)
units
- 2.8 V Fixed TSOP 550mA Surface Mount 2 V 5.5 V 5 1 Positive 16µA ±2% -40 °C
RS Stock No. 785-6847
Mfr. Part No.LP2950ACDT-5.0G
$1.32
Each (In a Pack of 5)
units
- 5 V Fixed DPAK 100mA Surface Mount - 30 V 3 1 Positive 75µA 1% -40 °C
RS Stock No. 162-8989
Mfr. Part No.NCP1117DT50RKG
$0.302
Each (On a Reel of 2500)
units
- 5 V Fixed DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% 0 °C
RS Stock No. 145-2962
Mfr. Part No.MC33269D-012G
$0.561
Each (In a Tube of 98)
units
- 12 V Fixed SOIC 800mA Surface Mount - 20 V 8 1 Positive 20mA ±1% -40 °C
RS Stock No. 785-7190
Mfr. Part No.NCP1117ST12T3G
$0.617
Each (In a Pack of 20)
units
- 12 V Fixed SOT-223 2.2A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% 0 °C
RS Stock No. 170-3405
Mfr. Part No.MC33275DT-3.0G
$0.84
Each (In a Tube of 75)
units
- 3 V Fixed DPAK 300mA Surface Mount - 13 V 3 1 Positive 0.125mA ±1% -40 °C
RS Stock No. 162-9295
Mfr. Part No.CAT6219-180TDGT3
$0.805
Each (On a Reel of 3000)
units
- 1.8 V Fixed TSOT-23 500mA Surface Mount 2.3 V 5.5 V 5 1 Positive 90µA ±1% -40 °C