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庫存編號 805-1740
製造零件編號NCV1117ST18T3G
HK$4.84
/個 (每包:20個)
單位
- 1.8 V Fixed SOT-223 2.2A Surface Mount - 20 V 3+Tab 1 Positive 10mA ±1% -40 °C
RS庫存編號 173-2290
製造零件編號NJM2370U1-33
HK$3.404
個 (在毎卷:2000)
單位
- 3.3 V Fixed SOT-89 180mA Surface Mount - 20 V 6 1 Positive 0.18mA 3% -40 °C
RS庫存編號 533-5648
製造零件編號LM2941CT/NOPB
HK$17.57
單位
- 5 → 20 V Adjustable TO-220 1A Through Hole -15 V 26 V 5 1 Positive - - 0 °C
RS庫存編號 121-8914
製造零件編號LM3940IMP-3.3/NOPB
HK$6.547
個 (在毎卷:1000)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount 4.5 V 7.5 V 3+Tab 1 Positive - - -40 °C
RS庫存編號 100-5912
製造零件編號LM1084IT-5.0/NOPB
HK$15.291
毎管:45 個
單位
- 5 V Fixed TO-220 5A Through Hole 2.6 V 25 V 3 1 Positive - - -40 °C
RS庫存編號 146-0950
製造零件編號AZ1117H-3.3TRE1
HK$0.627
個 (在毎卷:4000)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount - 15 V 3+Tab 1 Positive 10mA 1% -40 °C
RS庫存編號 102-5684
製造零件編號LM1117MP-2.5/NOPB
HK$4.931
個 (在毎卷:1000)
單位
- 2.5 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS庫存編號 163-0152
製造零件編號NCP703SN33T1G
HK$2.994
個 (在毎卷:3000)
單位
- 3.3 V Fixed TSOP 750mA Surface Mount 2 V 5.5 V 5 1 Positive 20µA ±2% -40 °C
RS庫存編號 100-5911
製造零件編號LM1084IT-3.3/NOPB
HK$15.291
毎管:45 個
單位
- 3.3 V Fixed TO-220 5A Through Hole 2.6 V 27 V 3 1 Positive - - -40 °C
RS庫存編號 506-3804
製造零件編號LT1764EQ#PBF
HK$64.32
單位
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 2.7 V 20 V 6 1 Positive 1mA - -40 °C
RS庫存編號 921-0701
製造零件編號AZ1117H-3.3TRE1
HK$2.24
/個 (每包:50個)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount - 15 V 3+Tab 1 Positive 10mA 1% -40 °C
RS庫存編號 145-5729
製造零件編號LT1764EQ#PBF
HK$46.841
毎管:50 個
單位
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 2.7 V 20 V 6 1 Positive 1mA - -40 °C
RS庫存編號 102-5639
製造零件編號LP2985IM5-3.3/NOPB
HK$2.764
個 (在毎卷:1000)
單位
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.5 V 16 V 5 1 Positive - ±3% -40 °C
RS庫存編號 535-8685
製造零件編號LM1117MP-2.5/NOPB
HK$7.792
/個 (每包:5個)
單位
- 2.5 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS庫存編號 100-5939
製造零件編號LM3940IT-3.3/NOPB
HK$10.611
毎管:45 個
單位
- 3.3 V Fixed TO-220 1A Through Hole 4.5 V 7.5 V 3 1 Positive - - -40 °C
RS庫存編號 545-5736
製造零件編號LT1085CT-12#PBF
HK$64.64
單位
- 12 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS庫存編號 545-5720
製造零件編號LT1085CT-5#PBF
HK$65.65
單位
- 5 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS庫存編號 165-7739
製造零件編號LD1117AS12TR
HK$1.30
個 (在毎卷:2500)
單位
- 1.2 V Fixed SOT-223 1.2A Surface Mount - 10 V 3+Tab 1 Positive 5mA ±2% 0 °C
RS庫存編號 545-6408
製造零件編號LT1584CT#PBF
HK$90.42
單位
- - Adjustable TO-220 7A Through Hole 2.5 V 7 V 3 1 Positive 8mA - 0 °C
RS庫存編號 121-7934
製造零件編號NCP692MN33T2G
HK$4.82
個 (在毎卷:3000)
單位
- 3.3 V Fixed DFN 1A Surface Mount 1.5 V 6 V 6 1 Positive - ±2% -40 °C