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. 697-7723
Mfr. Part No.ADP3338AKCZ-3.3RL7
$4.136
Each (In a Pack of 5)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±0.8% -40 °C
RS Stock No. 912-6350
Mfr. Part No.ADP3338AKCZ-3.3RL7
$2.453
Each (On a Reel of 500)
units
- 3.3 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±0.8% -40 °C
RS Stock No. 709-1674
Mfr. Part No.ADP3300ARTZ-3-RL7
$1.436
Each (In a Pack of 5)
units
- 3 V Fixed SOT-23 100mA Surface Mount 3 V 12 V 6 1 Positive <0.001mA 0.8% -40 °C
RS Stock No. 158-2369
Mfr. Part No.ADP3300ARTZ-3-RL7
$1.608
Each (On a Reel of 3000)
units
- 3 V Fixed SOT-23 100mA Surface Mount 3 V 12 V 6 1 Positive <0.001mA 0.8% -40 °C
RS Stock No. 798-9180
Mfr. Part No.ADP7182ACPZ-5.0-R7
$5.06
Each
units
- -5 V Fixed LFCSP -200mA Surface Mount -2.7 V -28 V 8 1 Negative -650µA ±1% -40 °C
RS Stock No. 159-9377
Mfr. Part No.ADP7182ACPZ-5.0-R7
$3.823
Each (On a Reel of 1500)
units
- -5 V Fixed LFCSP -200mA Surface Mount -2.7 V -28 V 8 1 Negative -650µA ±1% -40 °C
RS Stock No. 145-7792
Mfr. Part No.ADP3301ARZ-3.3
$3.215
Each (In a Tube of 98)
units
- 3.3 V Fixed SOIC 200mA Surface Mount 3 V 12 V 8 1 Positive <0.001mA ±0.8% -20 °C
RS Stock No. 709-5282
Mfr. Part No.ADP3301ARZ-3.3
$3.34
Each
units
- 3.3 V Fixed SOIC 200mA Surface Mount 3 V 12 V 8 1 Positive <0.001mA ±0.8% -20 °C
RS Stock No. 912-9598
Mfr. Part No.ADP3338AKCZ-5-R7
$2.471
Each (On a Reel of 500)
units
- 5 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±1.6% -40 °C
RS Stock No. 742-7695
Mfr. Part No.ADP3338AKCZ-5-R7
$3.711
Each (On a Tape of 25)
units
- 5 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±1.6% -40 °C
RS Stock No. 158-2544
Mfr. Part No.ADP3339AKCZ-5-R7
$4.164
Each (On a Reel of 500)
units
- 5 V Fixed SOT-223 2A Surface Mount 2.8 V 6 V 3+Tab 1 Positive 0.13mA ±0.9% -40 °C
RS Stock No. 709-1794
Mfr. Part No.ADP3339AKCZ-5-R7
$5.73
Each
units
- 5 V Fixed SOT-223 2A Surface Mount 2.8 V 6 V 3+Tab 1 Positive 0.13mA ±0.9% -40 °C
RS Stock No. 909-3446
Mfr. Part No.ADP7102ACPZ-5.0-R7
$4.05
Each (In a Pack of 2)
units
- 5 V Fixed LFCSP WD 300mA Surface Mount 3.3 V 20 V 8 1 Positive 750µA 1% -40 °C
RS Stock No. 820-9078
Mfr. Part No.ADP121-ACBZ165R7
$0.946
Each (In a Pack of 10)
units
- 1.65 V Fixed WLCSP 150mA Surface Mount 2.3 V 5.5 V 4 1 Positive 30µA ±3% -40 °C
RS Stock No. 709-1707
Mfr. Part No.ADP3330ARTZ-5-RL7
$2.38
Each (In a Pack of 5)
units
- 5 V Fixed SOT-23 300mA Surface Mount 2.9 V 12 V 6 1 Positive 0.034mA ±0.7% -40 °C
RS Stock No. 809-9837
Mfr. Part No.ADP323ACPZ-R7
$1.482
Each (In a Pack of 5)
units
- 0.5 → 5 V Adjustable LFCSP 200mA Surface Mount 1.8 V 5.5 V 16 3 Positive 250µA 0.51V -40 °C
RS Stock No. 131-1225
Mfr. Part No.ADP7142ARDZ-5.0
$4.065
Each (In a Pack of 2)
units
- 5 V Fixed SOIC 200mA Surface Mount 2.7 V 40 V 8 1 Positive 50µA ±0.8% -40 °C
RS Stock No. 158-5235
Mfr. Part No.ADP3301ARZ-5
$3.215
Each (In a Tube of 98)
units
- 5 V Fixed SOIC 200mA Surface Mount 3 V 12 V 8 1 Positive <0.001mA ±0.8% -20 °C
RS Stock No. 820-9542
Mfr. Part No.ADP1712AUJZ-R7
$2.236
Each (In a Pack of 5)
units
- 0.8 → 5 V Adjustable TSOT 300mA Surface Mount 2.3 V 5.5 V 5 1 Positive - ±2% -40 °C
RS Stock No. 160-9826
Mfr. Part No.ADP1712AUJZ-R7
$1.265
Each (On a Reel of 3000)
units
- 0.8 → 5 V Adjustable TSOT 300mA Surface Mount 2.3 V 5.5 V 5 1 Positive - ±2% -40 °C