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. 182-8272
Mfr. Part No.AP7381-50SA-7
kr 2,63
Each (In a Pack of 50)
Units
1000mV 5 V Fixed SOT-23 150mA Surface Mount 3.3 V 40 V 3 1 Positive 2.5µA - -40 °C
RS Stock No. 165-2196
Mfr. Part No.MCP1804T-3302I/MB
BrandMicrochip
kr 4,449
Each (On a Reel of 1000)
Units
- 3.3 V Fixed SOT-89 150mA Surface Mount 2 V 28 V 3 1 Positive 125µA ±2% -40 °C
RS Stock No. 155-7578
Mfr. Part No.LT3029EMSE#PBF
kr 40,529
Each (In a Tube of 37)
Units
- 1.21 → 19.5 V Adjustable MSOP 500mA Surface Mount 1.8 V 20 V 16 2 Positive 55µA - -40 °C
RS Stock No. 162-6345
Mfr. Part No.LP3985IM5-3.0/NOPB
kr 2,424
Each (On a Reel of 1000)
Units
- 3 V Fixed SOT-23 150mA Surface Mount 2.5 V 6 V 5 1 Positive 0.2mA 3% -40 °C
RS Stock No. 761-5606
Mfr. Part No.LM2940CS-15/NOPB
kr 17,508
Each (In a Pack of 5)
Units
- 15 V Fixed D2PAK (TO-263) 1A Surface Mount - 26 V 3 1 Positive 20mA - 0 °C
RS Stock No. 165-1914
Mfr. Part No.MCP1826T-1202E/DC
BrandMicrochip
kr 3,799
Each (On a Reel of 4000)
Units
- 1.2 V Fixed SOT-223 1A Surface Mount 2.3 V 6 V 5+Tab 1 Positive 220µA 2% -40 °C
RS Stock No. 819-7155
Mfr. Part No.ADP160AUJZ-3.3-R7
kr 8,026
Each (In a Pack of 10)
Units
- 3.3 V Fixed TSOT 150mA Surface Mount 2.2 V 5.5 V 5 1 Positive 860nA ±3.5% -40 °C
RS Stock No. 155-7522
Mfr. Part No.LT1761ES5-3#TRMPBF
kr 13,355
Each (On a Reel of 500)
Units
- 3 V Fixed TSOT-23 100mA Surface Mount 1.8 V 20 V 5 1 Positive 20µA - -40 °C
New
RS Stock No. 205-2447
Mfr. Part No.NCV8164AMLADJTCG
kr 2,514
Each (On a Reel of 3000)
Units
112mV 3.3 V Adjustable DFNW 560mA Surface Mount - - 8 1 - - ±2% -
RS Stock No. 145-6413
Mfr. Part No.TL750M08CKCSE3
kr 8,486
Each (In a Tube of 50)
Units
- 8 V Fixed TO-220 750mA Through Hole 9 V 26 V 3 1 Positive - - 0 °C
RS Stock No. 669-5174
Mfr. Part No.MCP1826S-3302E/AB
BrandMicrochip
kr 8,236
Each (In a Pack of 5)
Units
- 3.3 V Fixed TO-220 1A Through Hole 2.3 V 6 V 3 1 Positive 0.12mA ±2% -40 °C
RS Stock No. 829-4442
Mfr. Part No.LDK120C10R
kr 4,506
Each (In a Pack of 10)
Units
- 1 V Fixed SOT-323 200mA Surface Mount 1.9 V 5.5 V 5 1 Positive 100µA ±3% -40 °C
RS Stock No. 145-6053
Mfr. Part No.LP38690DT-1.8/NOPB
kr 7,855
Each (In a Tube of 75)
Units
- 5 V Fixed TO-252 1A Surface Mount 2.7 V 10 V 3 1 Positive 100µA 2.5% -40 °C
RS Stock No. 196-8989
Mfr. Part No.ISL80101IRAJZ-TK
kr 8,833
Each (On a Reel of 1000)
Units
212mV 0.8 → 5 V Adjustable - 1A Surface Mount - - 6 2 - - `±0.2% -
RS Stock No. 822-6783
Mfr. Part No.LT1965EDD-3.3#PBF
kr 39,88
Each (In a Pack of 2)
Units
- 3.3 V Fixed DFN 1.1A Surface Mount 1.8 V 20 V 8 1 Positive 1µA - -40 °C
RS Stock No. 189-6966
Mfr. Part No.MAX604CSA+
kr 26,016
Each (In a Tube of 100)
Units
- 1.25 → 11 V Adjustable, Fixed SOIC 500mA Surface Mount 2.7 V 11.5 V 8 1 Positive 0.015mA - 0 °C
RS Stock No. 714-7793
Mfr. Part No.LD1086D2T50TR
kr 7,676
Each (In a Pack of 5)
Units
- 5 V Fixed D2PAK 1.5A Surface Mount - 30 V 3 1 Positive 5mA ±1% -40 °C
RS Stock No. 809-9809
Mfr. Part No.ADP7104ARDZ-R7
kr 40,23
Each (In a Pack of 2)
Units
- 1.22 → 19 V Adjustable SOIC 500mA Surface Mount 3.3 V 20 V 8 1 Positive 1mA 1.232V -40 °C
RS Stock No. 825-3748
Mfr. Part No.TLV71312PDQNT
kr 0,946
Each (In a Pack of 25)
Units
- 1.2 V Fixed X2SON 150mA Surface Mount 1.4 V 5.5 V 4 1 Positive 50µA ±1.5% -40 °C
RS Stock No. 186-1240
Mfr. Part No.NCP134AMX180TCG
kr 1,218
Each (On a Reel of 3000)
Units
250 mV @ 500 mA 1.8 V Fixed XDFN 500mA Surface Mount 0.8 V 5.5 V 4 1 - - ±1.5% -
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