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 545-4890
製造零件編號LT1086CT#PBF
HK$41.34
單位
- - Adjustable TO-220 1.5A Through Hole - 25 V 3 1 Positive 5mA - 0 °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 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 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 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 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 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 162-6011
製造零件編號TPS79330DBVR
HK$2.128
個 (在毎卷:3000)
單位
- 3 V Fixed SOT-23 200mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.17mA ±2% -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 163-0992
製造零件編號NCP1117DT33RKG
HK$1.59
個 (在毎卷:2500)
單位
- - - - - - - - - - - - - -
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 102-5683
製造零件編號LM1117MP-1.8/NOPB
HK$4.27
個 (在毎卷:1000)
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 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 761-6457
製造零件編號LP2950CDT-3.3/NOPB
HK$10.148
/個 (每包:5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 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 536-0470
製造零件編號LP2950ACZ-3.0/NOPB
HK$7.374
/個 (每包:5個)
單位
- 3 V Fixed TO-92 100mA Through Hole - 30 V 3 1 Positive - ±0.5% -40 °C
RS庫存編號 102-5680
製造零件編號LM1117IMP-3.3/NOPB
HK$4.057
個 (在毎卷:1000)
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 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 785-2568
製造零件編號NCP630AD2TR4G
HK$10.406
/個 (每包:5個)
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 153-3330
製造零件編號LT1763CS8-3.3#PBF
HK$26.321
毎管:100 個
單位
- 3.3 V Fixed SOIC 500mA Surface Mount 1.8 V 20 V 8 1 Positive 0.03mA - -40 °C