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. 911-5735
Mfr. Part No.TC1185-3.3VCT713
BrandMicrochip
$0.389
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.7 V 6 V 5 1 Positive <0.0005mA ±2.5% -40 °C
RS Stock No. 628-3661
Mfr. Part No.TC1185-3.3VCT713
BrandMicrochip
$0.61
Each (In a Pack of 10)
units
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.7 V 6 V 5 1 Positive <0.0005mA ±2.5% -40 °C
RS Stock No. 403-888
Mfr. Part No.MCP1700-3302E/TO
BrandMicrochip
$0.696
Each (In a Pack of 10)
units
- 3.3 V Fixed TO-92 250mA Through Hole 2.3 V 6 V 3 1 Positive 0.0016mA ±2% -40 °C
RS Stock No. 911-5697
Mfr. Part No.MCP1700-3302E/TO
BrandMicrochip
$0.38
Each (In a Bag of 1000)
units
- 3.3 V Fixed TO-92 250mA Through Hole 2.3 V 6 V 3 1 Positive 0.0016mA ±2% -40 °C
RS Stock No. 100-5931
Mfr. Part No.LM1117MP-5.0/NOPB
$0.871
Each (On a Reel of 1000)
units
- 5 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS Stock No. 533-9583
Mfr. Part No.LM1117MP-5.0/NOPB
$1.56
Each
units
- 5 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS Stock No. 102-3504
Mfr. Part No.NCP1117DT33G
$0.246
Each (In a Tube of 75)
units
- 3.3 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 885-0721
Mfr. Part No.HT7533-1-SOT89
BrandHoltek
$0.61
Each (In a Pack of 20)
units
- 3.3 V Fixed SOT-89 100mA Surface Mount - 30 V 3 1 Positive 4µA ±3% -40 °C
RS Stock No. 516-5865
Mfr. Part No.NCP1117DT33G
$0.602
Each (In a Pack of 5)
units
- 3.3 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 170-9148
Mfr. Part No.HT7533-1-SOT89
BrandHoltek
$0.552
Each (On a Reel of 1000)
units
- 3.3 V Fixed SOT-89 100mA Surface Mount - 30 V 3 1 Positive 4µA ±3% -40 °C
RS Stock No. 698-9044
Mfr. Part No.MCP1700T-3302E/TT
BrandMicrochip
$0.89
Each
units
- 3.3 V Fixed SOT-23 250mA Surface Mount 2.3 V 6 V 3 1 Positive 0.0016mA ±2% -40 °C
RS Stock No. 887-7429
Mfr. Part No.MCP1700T-3302E/TT
BrandMicrochip
$0.445
Each (On a Reel of 3000)
units
- 3.3 V Fixed SOT-23 250mA Surface Mount 2.3 V 6 V 3 1 Positive 0.0016mA ±2% -40 °C
RS Stock No. 536-0492
Mfr. Part No.LP2950ACZ-3.3/NOPB
$1.404
Each (In a Pack of 5)
units
- 3.3 V Fixed TO-92 100mA Through Hole - 30 V 3 1 Positive - ±0.5% -40 °C
RS Stock No. 102-5728
Mfr. Part No.LP2950ACZ-3.3/NOPB
$0.614
Each (On a Reel of 1800)
units
- 3.3 V Fixed TO-92 100mA Through Hole - 30 V 3 1 Positive - ±0.5% -40 °C
RS Stock No. 802-2130
Mfr. Part No.NCP1117ST50T3G
$0.519
Each (In a Pack of 20)
units
- 5 V Fixed SOT-223 1A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% 0 °C
RS Stock No. 124-5349
Mfr. Part No.NCP1117ST50T3G
$0.234
Each (On a Reel of 4000)
units
- 5 V Fixed SOT-223 2.2A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% 0 °C
RS Stock No. 144-5724
Mfr. Part No.MCP1702-1802E/TO
BrandMicrochip
$0.59
Each (In a Bag of 1000)
units
- 1.8 V Fixed TO-92 250mA Through Hole 2.7 V 13.2 V 3 1 Positive 0.002mA ±0.4% -40 °C
RS Stock No. 102-3505
Mfr. Part No.NCP1117DT50G
$0.226
Each (In a Tube of 75)
units
- 5 V Fixed DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS Stock No. 822-6853
Mfr. Part No.LT3008ETS8#TRMPBF
$4.85
Each (In a Pack of 5)
units
- 0.6 → 44.5 V Adjustable TSOT-23 20mA Surface Mount 2 V 45 V 8 1 Positive 3µA ±2% -40 °C
RS Stock No. 403-862
Mfr. Part No.MCP1702-1802E/TO
BrandMicrochip
$0.817
Each (In a Pack of 10)
units
- 1.8 V Fixed TO-92 250mA Through Hole 2.7 V 13.2 V 3 1 Positive 0.002mA ±0.4% -40 °C
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