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. 122-3364
Mfr. Part No.AP2210N-3.3TRG1
€0.075
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.5 V 13.2 V 3 1 Positive 100µA ±2% -40 °C
RS Stock No. 828-7426
Mfr. Part No.AP2210N-3.3TRG1
€0.119
Each (In a Pack of 100)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.5 V 13.2 V 3 1 Positive 100µA ±2% -40 °C
RS Stock No. 165-4666
Mfr. Part No.MCP1824T-3002E/OT
BrandMicrochip
€0.286
Each (On a Reel of 3000)
units
- 3 V Fixed SOT-23 300mA Surface Mount 2.1 V 6 V 5 1 Positive 0.12mA ±2.5% -40 °C
RS Stock No. 669-5014
Mfr. Part No.MCP1824T-3002E/OT
BrandMicrochip
€0.392
Each (In a Pack of 5)
units
- 3 V Fixed SOT-23 300mA Surface Mount 2.1 V 6 V 5 1 Positive 0.12mA ±2.5% -40 °C
RS Stock No. 438-4885
Mfr. Part No.LD1117V33
€0.399
Each (In a Tube of 50)
units
- 3.3 V Fixed TO-220 1.3A Through Hole - 15 V 3 1 Positive 5mA ±1% 0 °C
RS Stock No. 533-8164
Mfr. Part No.LM2940CT-5.0/NOPB
€2.21
Each
units
- 5 V Fixed TO-220 1A Through Hole 6.25 V 26 V 3 1 Positive - - 0 °C
RS Stock No. 102-5760
Mfr. Part No.LM3480IM3-3.3/NOPB
€0.367
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-23 100mA Surface Mount - 30 V 3 1 Positive - ±5% -40 °C
RS Stock No. 160-2574
Mfr. Part No.ADP1708ACPZ-R7
€1.386
Each (On a Reel of 1500)
units
- 0.8 → 5 V Adjustable LFCSP 1A Surface Mount 2.5 V 5.5 V 8 2 Positive - 0.82V -40 °C
RS Stock No. 889-5635
Mfr. Part No.MCP1824T-3302E/OT
BrandMicrochip
€0.286
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.1 V 6 V 5 1 Positive 0.12mA ±2.5% -40 °C
RS Stock No. 545-5720
Mfr. Part No.LT1085CT-5#PBF
€7.62
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. 145-0635
Mfr. Part No.LT1086CT#PBF
€2.846
Each (In a Tube of 50)
units
- - Adjustable TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °C
RS Stock No. 517-1371
Mfr. Part No.TPS76350DBVT
€0.802
Each (In a Pack of 5)
units
- 5 V Fixed SOT-23 150mA Surface Mount 2.7 V 10 V 5 1 Positive 0.085mA ±3% -40 °C
RS Stock No. 145-1181
Mfr. Part No.TPS76350DBVT
€0.539
Each (On a Reel of 250)
units
- 5 V Fixed SOT-23 150mA Surface Mount 2.7 V 10 V 5 1 Positive 0.085mA ±3% -40 °C
RS Stock No. 536-1530
Mfr. Part No.LM3480IM3-3.3/NOPB
€2.21
Each
units
- 3.3 V Fixed SOT-23 100mA Surface Mount - 30 V 3 1 Positive - ±5% -40 °C
RS Stock No. 809-9941
Mfr. Part No.ADP1708ACPZ-R7
€2.502
Each (In a Pack of 5)
units
- 0.8 → 5 V Adjustable LFCSP 1A Surface Mount 2.5 V 5.5 V 8 2 Positive - 0.82V -40 °C
RS Stock No. 669-5011
Mfr. Part No.MCP1824T-3302E/OT
BrandMicrochip
€0.392
Each (In a Pack of 5)
units
- 3.3 V Fixed SOT-23 300mA Surface Mount 2.1 V 6 V 5 1 Positive 0.12mA ±2.5% -40 °C
RS Stock No. 545-4890
Mfr. Part No.LT1086CT#PBF
€4.29
Each
units
- - Adjustable TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °C
RS Stock No. 145-1188
Mfr. Part No.LT1085CT-5#PBF
€5.045
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. 533-5632
Mfr. Part No.LM2940T-5.0/NOPB
€2.21
Each
units
- 5 V Fixed TO-220 1A Through Hole 6.25 V 26 V 3 1 Positive - - -40 °C
RS Stock No. 168-6583
Mfr. Part No.LD1085P
€1.143
Each (In a Tube of 50)
units
- 1.25 → 28 V Adjustable TO-220FP 3A Through Hole - 30 V 3 1 Positive 5mA ±1% -40 °C
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