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. 165-7779
Mfr. Part No.LE50ABZ-AP
kr 3,288
Each (On a Tape of 2000)
Units
- 5 V Fixed TO-92 100mA Through Hole - 18 V 3 1 Positive 1.5mA ±1% -40 °C
RS Stock No. 686-9164
Mfr. Part No.LE50ABZ-AP
kr 6,171
Each (In a Pack of 10)
Units
- 5 V Fixed TO-92 100mA Through Hole - 18 V 3 1 Positive 1.5mA ±1% -40 °C
RS Stock No. 165-7750
Mfr. Part No.LD1117S33CTR
kr 1,172
Each (On a Reel of 2500)
Units
- 3.3 V Fixed SOT-223 1.3A Surface Mount - 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS Stock No. 165-7741
Mfr. Part No.LD1117AS33TR
kr 2,364
Each (On a Reel of 2500)
Units
- 3.3 V Fixed SOT-223 1.2A Surface Mount - 10 V 3+Tab 1 Positive 5mA ±2% 0 °C
RS Stock No. 686-9344
Mfr. Part No.LD1117AS33TR
kr 5,376
Each (In a Pack of 25)
Units
- 3.3 V Fixed SOT-223 1.2A Surface Mount - 10 V 3+Tab 1 Positive 5mA ±2% 0 °C
RS Stock No. 686-9388
Mfr. Part No.LD1117S33CTR
kr 3,011
Each (In a Pack of 25)
Units
- 3.3 V Fixed SOT-223 1.3A Surface Mount - 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS Stock No. 686-9252
Mfr. Part No.LD1117DT33TR
kr 3,334
Each (In a Pack of 25)
Units
- 3.3 V Fixed DPAK 1.3A Surface Mount - 15 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 189-1374
Mfr. Part No.L4941BV
kr 9,27
Each
Units
- 5 V Fixed TO-220 1A Through Hole - 16 V 3 1 Positive 4mA ±4% -40 °C
RS Stock No. 165-7426
Mfr. Part No.LD1117DT33TR
kr 1,397
Each (On a Reel of 2500)
Units
- 3.3 V Fixed DPAK 1.3A Surface Mount - 15 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 168-6051
Mfr. Part No.L4941BV
kr 7,954
Each (In a Tube of 50)
Units
- 5 V Fixed TO-220 1A Through Hole - 16 V 3 1 Positive 4mA ±4% -40 °C
RS Stock No. 175-0783
Mfr. Part No.LD39100PU18RY
kr 8,894
Each (In a Pack of 5)
Units
400mV 1.8 V Fixed DFN 1A Surface Mount 1.5 V 5.5 V 6 1 Positive 50µA 3% -40 °C
RS Stock No. 168-6494
Mfr. Part No.LD29080DT18R
kr 4,04
Each (On a Reel of 2500)
Units
- 1.8 V Fixed DPAK 800mA Surface Mount 2.5 V 13 V 3 1 Positive 2mA ±1% -40 °C
RS Stock No. 168-8688
Mfr. Part No.LDK220M33R
kr 2,617
Each (On a Reel of 3000)
Units
- 3.3 V Fixed SOT-23 200mA Surface Mount 2.5 V 13.2 V 5 1 Positive 100µA ±3% -40 °C
RS Stock No. 168-6495
Mfr. Part No.LD29080DT15R
kr 4,234
Each (On a Reel of 2500)
Units
- 1.5 V Fixed DPAK 800mA Surface Mount 2.5 V 13 V 3 1 Positive 2mA ±1% -40 °C
RS Stock No. 163-9767
Mfr. Part No.LD39020ATPU32R
kr 2,466
Each (In a Pack of 10)
Units
350mV 3.2 V Fixed DFN 200mA Surface Mount 1.5 V 5.5 V 4 1 Positive 100µA ±1.5% -40 °C
RS Stock No. 686-8912
Mfr. Part No.LD1086DT33TR
kr 8,494
Each (In a Pack of 5)
Units
- 3.3 V Fixed DPAK 1.5A Surface Mount - 30 V 3 1 Positive 5mA ±1% -40 °C
RS Stock No. 165-7780
Mfr. Part No.LD29300P2MTR
kr 4,514
Each (On a Reel of 1000)
Units
- - Adjustable P2PAK/A 3A Surface Mount 2.5 V 30 V 6 1 Positive 20mA ±1% -40 °C
RS Stock No. 686-8723
Mfr. Part No.LD29150PTR
kr 10,11
Each (In a Pack of 5)
Units
- 1.5 → 15 V Adjustable PPAK 1.5A Surface Mount 2.5 V 30 V 5 1 Positive 15mA ±1% -40 °C
RS Stock No. 178-1486
Mfr. Part No.LD1117V
kr 3,976
Each (In a Tube of 50)
Units
- 1.25 → 15 V Adjustable TO-220 1.3A Through Hole - 15 V 3 1 Positive - ±1% 0 °C
RS Stock No. 829-4676
Mfr. Part No.LDK220M33R
kr 2,572
Each (In a Pack of 5)
Units
- 3.3 V Fixed SOT-23 200mA Surface Mount 2.5 V 13.2 V 5 1 Positive 100µA ±3% -40 °C