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. 805-1927
Mfr. Part No.NCP4586DSQ33T1G
kr 2,052
Each (On a Tape of 25)
Units
- 3.3 V Fixed SC-82AB 200mA Surface Mount 1.7 V 6.5 V 4 1 Positive 58µA ±1% -40 °C
RS Stock No. 162-9059
Mfr. Part No.NCP4586DSQ33T1G
kr 2,047
Each (On a Reel of 3000)
Units
- 3.3 V Fixed SC-82AB 200mA Surface Mount 1.7 V 6.5 V 4 1 Positive 58µA ±1% -40 °C
RS Stock No. 785-7276
Mfr. Part No.NCP551SN50T1G
kr 1,26
Each (In a Pack of 10)
Units
- 5 V Fixed TSOP 150mA Surface Mount 0 V 12 V 5 1 Positive 8µA 2% -40 °C
RS Stock No. 162-9538
Mfr. Part No.NCP551SN50T1G
kr 1,272
Each (On a Reel of 3000)
Units
- 5 V Fixed TSOP 150mA Surface Mount 0 V 12 V 5 1 Positive 8µA 2% -40 °C
RS Stock No. 162-9062
Mfr. Part No.NCP4682DSN33T1G
kr 3,279
Each (On a Reel of 3000)
Units
- 3.3 V Fixed SOT-23 200mA Surface Mount 1.7 V 5.25 V 5 1 Positive 1.5µA ±0.8% -40 °C
RS Stock No. 802-4085
Mfr. Part No.NCP4682DSN33T1G
kr 3,609
Each (In a Pack of 10)
Units
- 3.3 V Fixed SOT-23 200mA Surface Mount 1.7 V 5.25 V 5 1 Positive 1.5µA ±0.8% -40 °C
RS Stock No. 162-9537
Mfr. Part No.NCP551SN33T1G
kr 1,397
Each (On a Reel of 3000)
Units
- 3.3 V Fixed TSOP 150mA Surface Mount 0 V 12 V 5 1 Positive 8µA 2% -40 °C
RS Stock No. 806-2059
Mfr. Part No.MC33269ST-3.3T3G
kr 2,484
Each (In a Pack of 20)
Units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 20 V 3+Tab 1 Positive 8mA ±1% -40 °C
RS Stock No. 785-7272
Mfr. Part No.NCP551SN33T1G
kr 3,669
Each (In a Pack of 10)
Units
- 3.3 V Fixed TSOP 150mA Surface Mount 0 V 12 V 5 1 Positive 8µA 2% -40 °C
RS Stock No. 145-2961
Mfr. Part No.MC33269T-5.0G
kr 6,772
Each (In a Tube of 50)
Units
- 5 V Fixed TO-220 800mA Through Hole - 20 V 3 1 Positive 20mA ±1% -40 °C
RS Stock No. 805-1826
Mfr. Part No.NCP699SN33T1G
kr 3,009
Each (In a Pack of 50)
Units
- 3.3 V Fixed TSOP 600mA Surface Mount 2.1 V 6 V 5 1 Positive 0.09mA 2% -40 °C
RS Stock No. 163-2241
Mfr. Part No.NCV4274ADS33R4G
kr 11,627
Each (On a Reel of 800)
Units
- 3.3 V Fixed D2PAK 400mA Surface Mount 4.5 V 40 V 3 1 Positive 45mA 2% -40 °C
RS Stock No. 802-1702
Mfr. Part No.NCV4274ADS33R4G
kr 12,242
Each (In a Pack of 5)
Units
- 3.3 V Fixed D2PAK 400mA Surface Mount 4.5 V 40 V 3 1 Positive 45mA 2% -40 °C
RS Stock No. 163-2468
Mfr. Part No.MC33269DTRK-3.3G
kr 3,20
Each (On a Reel of 2500)
Units
- 3.3 V Fixed DPAK 800mA Surface Mount - 20 V 3 1 Positive 5.5mA ±1% -40 °C
RS Stock No. 162-9522
Mfr. Part No.NCP500SN26T1G
kr 1,358
Each (On a Reel of 3000)
Units
- 2.6 V Fixed TSOP 150mA Surface Mount 0 V 6 V 5 1 Positive 300µA 2.5% -
RS Stock No. 163-2407
Mfr. Part No.LM2931AD-5.0R2G
kr 1,415
Each (On a Reel of 2500)
Units
- 5 V Fixed SOIC 100mA Surface Mount 14 V 40 V 8 1 Positive - ±3.8% -40 °C
RS Stock No. 900-8781
Mfr. Part No.NCP170AXV180T2G
kr 0,864
Each (In a Pack of 50)
Units
- 1.8 V Fixed SOT-563 - Surface Mount 2.2 V 5.5 V 6 1 Positive 0.9µA ±1% -
RS Stock No. 163-0089
Mfr. Part No.NCP170AXV180T2G
kr 0,864
Each (On a Reel of 4000)
Units
- 1.8 V Fixed SOT-563 - Surface Mount 2.2 V 5.5 V 6 1 Positive 0.9µA ±1% -
RS Stock No. 785-7210
Mfr. Part No.NCP500SN26T1G
kr 1,344
Each (In a Pack of 10)
Units
- 2.6 V Fixed TSOP 150mA Surface Mount 0 V 6 V 5 1 Positive 300µA 2.5% -
RS Stock No. 688-9231
Mfr. Part No.MC33269DTRK-3.3G
kr 6,18
Each (In a Pack of 2)
Units
- 3.3 V Fixed DPAK 800mA Surface Mount - 20 V 3 1 Positive 5.5mA ±1% -40 °C