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. 168-6597
Mfr. Part No.LD1117V33C
PHP18.24
Each (In a Tube of 50)
units
- 3.3 V Fixed TO-220 1.3A Through Hole - 15 V 3 1 Positive 5mA ±1% -40 °C
RS Stock No. 686-9767
Mfr. Part No.LD1117V33C
PHP29.667
Each (In a Pack of 10)
units
- 3.3 V Fixed TO-220 1.3A Through Hole - 15 V 3 1 Positive 5mA ±1% -40 °C
RS Stock No. 661-3778
Mfr. Part No.TLV1117-33IDCYR
PHP17.694
Each (In a Pack of 5)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount 4.7 V 15 V 3+Tab 1 Positive 5mA - -40 °C
RS Stock No. 145-0932
Mfr. Part No.TLV1117-33IDCY
PHP16.746
Each (In a Tube of 80)
units
- 3.365 V Fixed SOT-223 800mA Surface Mount 4.7 V 15 V 3+Tab 1 Positive 15mA - -40 °C
RS Stock No. 809-5407
Mfr. Part No.TLV1117-33IDCY
PHP19.544
Each (In a Pack of 20)
units
- 3.365 V Fixed SOT-223 800mA Surface Mount 4.7 V 15 V 3+Tab 1 Positive 15mA - -40 °C
RS Stock No. 146-0950
Mfr. Part No.AZ1117H-3.3TRE1
PHP3.514
Each (On a Reel of 4000)
units
- 3.3 V Fixed SOT-223 1A Surface Mount - 15 V 3+Tab 1 Positive 10mA 1% -40 °C
RS Stock No. 921-0701
Mfr. Part No.AZ1117H-3.3TRE1
PHP8.053
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-223 1A Surface Mount - 15 V 3+Tab 1 Positive 10mA 1% -40 °C
RS Stock No. 828-7606
Mfr. Part No.AZ1117CR-3.3TRG1
PHP7.071
Each (In a Pack of 50)
units
- 3.3 V Fixed SOT-89 800mA Surface Mount - 15 V 3 1 Positive 6mA ±1% -20 °C
RS Stock No. 121-9654
Mfr. Part No.AZ1117CR-3.3TRG1
PHP3.629
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-89 800mA Surface Mount - 15 V 3 1 Positive 6mA ±1% -20 °C
RS Stock No. 145-7597
Mfr. Part No.LP2950CDT-5.0/NOPB
PHP31.813
Each (In a Tube of 75)
units
- 5 V Fixed TO-252 100mA Surface Mount -0.3 V 30 V 3 1 Positive 0.075mA - -40 °C
RS Stock No. 761-6466
Mfr. Part No.LP2950CDT-5.0/NOPB
PHP53.668
Each (In a Pack of 5)
units
- 5 V Fixed TO-252 100mA Surface Mount -0.3 V 30 V 3 1 Positive 0.075mA - -40 °C
RS Stock No. 785-7207
Mfr. Part No.NCP1117ST33T3G
PHP12.651
Each (In a Pack of 20)
units
- 3.3 V Fixed SOT-223 1A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% 0 °C
RS Stock No. 145-2870
Mfr. Part No.LP2950ACDT-5.0G
PHP16.185
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. 170-8927
Mfr. Part No.AZ1084CD-3.3TRG1
PHP11.194
Each (On a Reel of 2500)
units
- 3.3 V Fixed TO-252 5A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS Stock No. 686-9381
Mfr. Part No.LD1117S50CTR
PHP22.73
Each (In a Pack of 25)
units
- 5 V Fixed SOT-223 1.3A Surface Mount - 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS Stock No. 785-6910
Mfr. Part No.MC33275ST-3.3T3G
PHP43.368
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-223 300mA Surface Mount - 13 V 3+Tab 1 Positive 200µA - -40 °C
RS Stock No. 162-8989
Mfr. Part No.NCP1117DT50RKG
PHP8.931
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. 802-2124
Mfr. Part No.NCP1117DT50RKG
PHP17.909
Each (In a Pack of 25)
units
- 5 V Fixed DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% 0 °C
RS Stock No. 828-7570
Mfr. Part No.AZ1084CD-3.3TRG1
PHP10.983
Each (In a Pack of 20)
units
- 3.3 V Fixed TO-252 5A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS Stock No. 162-9401
Mfr. Part No.MC33275ST-3.3T3G
PHP22.84
Each (On a Reel of 4000)
units
- 3.3 V Fixed SOT-223 300mA Surface Mount - 13 V 3+Tab 1 Positive 200µA - -40 °C
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