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. 124-5372
Mfr. Part No.NCP705MT30TCG
HK$2.801
Each (On a Reel of 3000)
units
- 3 V Fixed WDFN 950mA Surface Mount 1.8 V 5.5 V 6 1 Positive 25µA ±2% -40 °C
RS Stock No. 827-0591
Mfr. Part No.NCP705MT30TCG
HK$5.06
Each (In a Pack of 20)
units
- 3 V Fixed WDFN 950mA Surface Mount 1.8 V 5.5 V 6 1 Positive 25µA ±2% -40 °C
RS Stock No. 806-2059
Mfr. Part No.MC33269ST-3.3T3G
HK$5.858
Each (In a Pack of 20)
units
- 3.3 V Fixed SOT-223 800mA Surface Mount - 20 V 3+Tab 1 Positive 8mA ±1% -40 °C
RS Stock No. 769-5790
Mfr. Part No.NCP59151MN50TYG
HK$9.11
Each
units
- 5 V Fixed DFN 1.5A Surface Mount 2.24 V 13.5 V 8 1 Positive 80mA ±2% -40 °C
RS Stock No. 124-5349
Mfr. Part No.NCP1117ST50T3G
HK$1.208
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. 802-2130
Mfr. Part No.NCP1117ST50T3G
HK$3.173
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. 122-0131
Mfr. Part No.NCP59151MN50TYG
HK$7.809
Each (On a Reel of 4000)
units
- 5 V Fixed DFN 1.5A Surface Mount 2.24 V 13.5 V 8 1 Positive 80mA ±2% -40 °C
RS Stock No. 121-7934
Mfr. Part No.NCP692MN33T2G
HK$4.67
Each (On a Reel of 3000)
units
- 3.3 V Fixed DFN 1A Surface Mount 1.5 V 6 V 6 1 Positive - ±2% -40 °C
RS Stock No. 162-9096
Mfr. Part No.NCV1117ST18T3G
HK$3.079
Each (On a Reel of 4000)
units
- 1.8 V Fixed SOT-223 2.2A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% -40 °C
RS Stock No. 821-3320
Mfr. Part No.NCP692MN33T2G
HK$9.84
Each (In a Pack of 10)
units
- 3.3 V Fixed DFN 1A Surface Mount 1.5 V 6 V 6 1 Positive - ±2% -40 °C
RS Stock No. 805-1740
Mfr. Part No.NCV1117ST18T3G
HK$4.83
Each (In a Pack of 20)
units
- 1.8 V Fixed SOT-223 2.2A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% -40 °C
RS Stock No. 163-0152
Mfr. Part No.NCP703SN33T1G
HK$2.40
Each (On a Reel of 3000)
units
- 3.3 V Fixed TSOP 750mA Surface Mount 2 V 5.5 V 5 1 Positive 20µA ±2% -40 °C
RS Stock No. 827-0569
Mfr. Part No.NCP703SN33T1G
HK$4.06
Each (In a Pack of 25)
units
- 3.3 V Fixed TSOP 750mA Surface Mount 2 V 5.5 V 5 1 Positive 20µA ±2% -40 °C
RS Stock No. 785-2568
Mfr. Part No.NCP630AD2TR4G
HK$10.406
Each (In a Pack of 5)
units
- 1.2 → 10.5 V Adjustable D2PAK 3A Surface Mount - 12 V 5 1 Positive - ±1.5% -40 °C
RS Stock No. 163-0992
Mfr. Part No.NCP1117DT33RKG
HK$1.59
Each (On a Reel of 2500)
units
- - - - - - - - - - - - - -
RS Stock No. 773-7825
Mfr. Part No.NCP1117DT33RKG
HK$3.606
Each (In a Pack of 10)
units
- 3.3 V Fixed DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% -55 °C
RS Stock No. 122-0130
Mfr. Part No.NCP4632DDT08T5G
HK$7.595
Each (On a Reel of 3000)
units
- 0.8 V Fixed DPAK 3A Surface Mount 1.6 V 5.25 V 5 1 Positive 450µA ±1% -40 °C
RS Stock No. 163-1039
Mfr. Part No.NCP630AD2TR4G
HK$6.54
Each (On a Reel of 800)
units
- 1.2 → 10.5 V Adjustable D2PAK 3A Surface Mount - 12 V 5 1 Positive - ±1.5% -40 °C
RS Stock No. 769-5769
Mfr. Part No.NCP4632DDT08T5G
HK$17.41
Each
units
- 0.8 V Fixed DPAK 3A Surface Mount 1.6 V 5.25 V 5 1 Positive 450µA ±1% -40 °C
RS Stock No. 802-2137
Mfr. Part No.NCP1117LPST33T3G
HK$2.698
Each (In a Pack of 25)
units
- 3.3 V Fixed SOT-223 1.1A Surface Mount -0.3 V 18 V 3+Tab 1 Positive 700µA - 0 °C