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 533-9347
製造零件編號LM1084IT-ADJ/NOPB
HK$19.92
單位
- 1.2 → 15 V Adjustable TO-220 5A Through Hole 2.6 V 29 V 3 1 Positive - - -40 °C
RS庫存編號 709-9155
製造零件編號TPS7A4501KTTR
HK$27.47
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
RS庫存編號 822-8874
製造零件編號AP7331-33WG-7
HK$1.551
/個 (每包:50個)
單位
- 3.3 V Fixed SOT-25 300mA Surface Mount 2 V 6 V 5 1 Positive 85µA ±2% -40 °C
RS庫存編號 168-6051
製造零件編號L4941BV
HK$6.03
毎管:50 個
單位
- 5 V Fixed TO-220 1A Through Hole - 16 V 3 1 Positive 4mA ±4% -40 °C
RS庫存編號 165-7750
製造零件編號LD1117S33CTR
HK$0.975
個 (在毎卷:2500)
單位
- 3.3 V Fixed SOT-223 1.3A Surface Mount - 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS庫存編號 170-9148
製造零件編號HT7533-1-SOT89
BrandHoltek
HK$2.961
個 (在毎卷:1000)
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 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 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 121-9606
製造零件編號AP7331-33WG-7
HK$0.876
個 (在毎卷:3000)
單位
- 3.3 V Fixed SOT-25 300mA Surface Mount 2 V 6 V 5 1 Positive 85µA ±2% -40 °C
RS庫存編號 121-8861
製造零件編號LP2950ACZ-3.0/NOPB
HK$3.397
個 (以毎盒:1800)
單位
- 3 V Fixed TO-92 100mA Through Hole - 30 V 3 1 Positive - ±0.5% -40 °C
RS庫存編號 802-2137
製造零件編號NCP1117LPST33T3G
HK$2.698
/個 (每包:25個)
單位
- 3.3 V Fixed SOT-223 1.1A Surface Mount -0.3 V 18 V 3+Tab 1 Positive 700µA - 0 °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 686-9388
製造零件編號LD1117S33CTR
HK$2.448
/個 (每包:25個)
單位
- 3.3 V Fixed SOT-223 1.3A Surface Mount - 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS庫存編號 535-8679
製造零件編號LM1117MP-1.8/NOPB
HK$9.41
/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 163-1039
製造零件編號NCP630AD2TR4G
HK$6.54
個 (在毎卷:800)
單位
- 1.2 → 10.5 V Adjustable D2PAK 3A Surface Mount - 12 V 5 1 Positive - ±1.5% -40 °C
RS庫存編號 660-8010
製造零件編號TPS75801KC
HK$42.69
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 922-2256
製造零件編號LP2950CDT-3.3/NOPB
HK$6.213
毎管:75 個
單位
- 3.3 V Fixed TO-252 100mA Surface Mount -0.3 V 30 V 3 1 Positive 0.075mA - -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 805-6607
製造零件編號MC78PC18NTRG
HK$3.933
Each (On a Tape of 20)
單位
- 1.836 V Fixed SOT-23 150mA Surface Mount - 9 V 5 1 Positive - ±2% -40 °C
RS庫存編號 411-952
製造零件編號LT1764AEQ#PBF
HK$66.93
單位
- 1.21 → 20 V Adjustable D2PAK 3A Surface Mount 2.7 V 20 V 5 1 Positive 1mA - -40 °C