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 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 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 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 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
RS庫存編號 162-9541
製造零件編號NCP563SQ15T1G
HK$1.774
個 (在毎卷:3000)
單位
- 1.5 V Fixed SC-82 280mA Surface Mount - 6 V 4 1 Positive 6µA 2% -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 827-0569
製造零件編號NCP703SN33T1G
HK$4.06
/個 (每包:25個)
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 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 669-5207
製造零件編號TC1014-2.5VCT713
BrandMicrochip
HK$2.592
/個 (每包:10個)
單位
- 2.5 V Fixed SOT-23 50mA Surface Mount 2.7 V 6 V 5 1 Positive <0.0005mA ±2.5% -40 °C
RS庫存編號 533-9331
製造零件編號LM1084IT-5.0/NOPB
HK$20.94
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 145-6357
製造零件編號LT1085CT-12#PBF
HK$46.687
毎管:50 個
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 313-8316
製造零件編號NJM2370U1-33
HK$4.758
/個 (每包:5個)
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 919-9152
製造零件編號LT1764AEQPBF
HK$42.728
毎管:50 個
單位
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 2.7 V 20 V 5 1 Positive 1mA - -40 °C
RS庫存編號 535-8966
製造零件編號LM2940CS-12/NOPB
HK$15.316
/個 (每包:5個)
單位
- 12 V Fixed D2PAK (TO-263) 1A Surface Mount 13.6 V 26 V 3 1 Positive - - 0 °C
RS庫存編號 851-4601
製造零件編號LT3015IQ#PBF
HK$59.99
/個 (每包:2個)
單位
- -29.3 → -1.2 V Adjustable D2PAK 1.5A Surface Mount -1.8 V 30 V 5 1 Negative 1.1mA - -40 °C
RS庫存編號 620-0852
製造零件編號REG1117-3.3
HK$19.138
/個 (每包:5個)
單位
- 3.3 V Fixed SOT-223 800mA Surface Mount 3.8 V 15 V 3+Tab 1 Positive 4mA ±1% -40 °C
RS庫存編號 535-8679
製造零件編號LM1117MP-1.8/NOPB
HK$9.46
/個 (每包:5個)
單位
- 1.8 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS庫存編號 533-9448
製造零件編號LM1086CT-3.3/NOPB
HK$17.97
單位
- 3.3 V Fixed TO-220 1.5A Through Hole 2.6 V 30 V 3 1 Positive - - 0 °C
RS庫存編號 100-5920
製造零件編號LM1086CT-3.3/NOPB
HK$11.014
毎管:45 個
單位
- 3.3 V Fixed TO-220 1.5A Through Hole 2.6 V 30 V 3 1 Positive - - 0 °C
RS庫存編號 157-8361
製造零件編號LT1963AET#PBF
HK$34.897
毎管:50 個
單位
- 1.21 → 20 V Adjustable TO-220 1.5A Through Hole 2.5 V 20 V 5 1 Positive 1µA - -40 °C