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 153-3492
製造零件編號LT1587CT-3.3#PBF
HK$42.224
毎管:50 個
單位
- 3.3 V Fixed TO-220 3A Through Hole 2.7 V 7 V 3 1 Positive 8mA - 0 °C
RS庫存編號 761-6586
製造零件編號LP38511MR-ADJ/NOPB
HK$16.636
/個 (每包:5個)
單位
- 0.5 → 3.3 V Adjustable PSOP 800mA Surface Mount 2.25 V 5.5 V 8 1 Positive - ±2% -40 °C
RS庫存編號 884-2556
製造零件編號LT1963AET#PBF
HK$47.25
/個 (每包:2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
RS庫存編號 145-0635
製造零件編號LT1086CT#PBF
HK$26.33
毎管:50 個
單位
- - Adjustable TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °C
RS庫存編號 153-3595
製造零件編號LT1175IS8-5#PBF
HK$50.70
毎管:100 個
單位
- -5 V Fixed SOIC 500mA Surface Mount - 25 V 8 1 Negative 0.045mA 2.5% -40 °C
RS庫存編號 885-0721
製造零件編號HT7533-1-SOT89
BrandHoltek
HK$2.828
/個 (每包:20個)
單位
- 3.3 V Fixed SOT-89 100mA Surface Mount - 30 V 3 1 Positive 4µA ±3% -40 °C
RS庫存編號 162-8934
製造零件編號MC78PC18NTRG
HK$1.853
個 (在毎卷:3000)
單位
- 1.836 V Fixed SOT-23 150mA Surface Mount - 9 V 5 1 Positive - ±2% -40 °C
RS庫存編號 533-9448
製造零件編號LM1086CT-3.3/NOPB
HK$15.83
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 535-8635
製造零件編號LM1117IMP-3.3/NOPB
HK$8.852
/個 (每包:5個)
單位
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% -40 °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 162-5332
製造零件編號TPS75801KC
HK$38.547
毎管:50 個
單位
- 1.225 → 5 V Adjustable TO-220 3A Through Hole 2.8 V 5.5 V 5 1 Positive 0.125mA ±3% -40 °C
RS庫存編號 162-6334
製造零件編號LP38511MR-ADJ/NOPB
HK$12.616
毎管:95 個
單位
- 0.5 → 3.3 V Adjustable PSOP 800mA Surface Mount 2.25 V 5.5 V 8 1 Positive - ±2% -40 °C
RS庫存編號 761-8150
製造零件編號LT1175IS8-5#PBF
HK$63.96
單位
- -5 V Fixed SOIC 500mA Surface Mount - 25 V 8 1 Negative 0.045mA 2.5% -40 °C
RS庫存編號 825-8250
製造零件編號LP2985IM5-2.7/NOPB
HK$4.636
/個 (每包:10個)
單位
- 2.7 V Fixed SOT-23 350mA Surface Mount 2.2 V 16 V 5 1 Positive <1µA 1% -40 °C
RS庫存編號 155-9300
製造零件編號LT3015IQ#PBF
HK$47.338
毎管:50 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 640-4981
製造零件編號LT1764AEQ#PBF
HK$53.64
單位
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 1.7 V 20 V 6 1 - 1mA - -40 °C
RS庫存編號 157-8361
製造零件編號LT1963AET#PBF
HK$34.351
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
RS庫存編號 121-8966
製造零件編號REG1117-3.3
HK$14.21
毎管:80 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 162-8632
製造零件編號LP2985IM5-2.7/NOPB
HK$2.734
個 (在毎卷:1000)
單位
- 2.7 V Fixed SOT-23 350mA Surface Mount 2.2 V 16 V 5 1 Positive <1µA 1% -40 °C
RS庫存編號 921-5147
製造零件編號TPS7A4501KTTR
HK$17.152
個 (在毎卷:500)
單位
- 1.21 → 20 V Adjustable D2PAK (TO-263) 1.5A Surface Mount 1.9 V 20 V 5 1 Positive 1mA ±1% -40 °C