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 122-2330
製造零件編號AP7332-3333W6-7
HK$2.40
個 (在毎卷:3000)
單位
- 3.3 V Fixed SOT-26 300mA Surface Mount 2 V 6 V 6 2 Positive 80µA ±2% -40 °C
RS庫存編號 162-4783
製造零件編號LMS1587CT-ADJ/NOPB
HK$17.71
毎管:45 個
單位
- - - - - - - - - - - - - -
RS庫存編號 919-9051
製造零件編號LT1129IQPBF
HK$40.41
毎管:50 個
單位
- 3.8 → 30 V Adjustable D2PAK 700mA Surface Mount 4.3 V 20 V 5 1 Positive 0.025mA - -40 °C
RS庫存編號 516-5089
製造零件編號MC33269D-3.3G
HK$6.51
單位
- 3.3 V Fixed SOIC 800mA Surface Mount - 20 V 8 1 Positive 5.5mA ±1% -40 °C
RS庫存編號 100-3956
製造零件編號LM2931Z-5.0/NOPB
HK$3.14
個 (在毎卷:1800)
單位
- 5 V Fixed TO-92 100mA Through Hole - - 3 1 Positive - - -40 °C
RS庫存編號 170-4511
製造零件編號SPX29302T5-L
BrandEXAR
HK$17.153
毎管:50 個
單位
- 1.25 → 16 V Adjustable D2PAK (TO-263) 3A Surface Mount 2.8 V 16 V 5 1 Positive 60mA 1% -40 °C
RS庫存編號 100-5932
製造零件編號LM1117MP-ADJ/NOPB
HK$3.80
個 (在毎卷:1000)
單位
- 1.25 → 13.8 V Adjustable SOT-223 1.5A Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS庫存編號 533-5604
製造零件編號LM2936Z-5.0/NOPB
HK$16.25
單位
- 5 V Fixed TO-92 50mA Through Hole 4 V 40 V 3 1 Positive - ±2% -40 °C
RS庫存編號 821-3263
製造零件編號NCP5662DSADJR4G
HK$11.543
/個 (每包:10個)
單位
- 900 mV Adjustable D2PAK 2A Surface Mount 2 V 9 V 5 1 Positive - ±2% -40 °C
RS庫存編號 796-8322
製造零件編號TLV70033DDCT
HK$2.413
/個 (每包:25個)
單位
- 3.3 V Fixed SOT-23 860mA Surface Mount 2 V 5.5 V 5 1 Positive 31µA 2% -40 °C
RS庫存編號 919-9216
製造零件編號LT1963AEQPBF
HK$34.351
毎管:50 個
單位
- 1.21 → 20 V Adjustable D2PAK 1.5A Surface Mount 1.9 V 20 V 5 1 Positive 1mA - -40 °C
RS庫存編號 628-3661
製造零件編號TC1185-3.3VCT713
BrandMicrochip
HK$2.764
/個 (每包:10個)
單位
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.7 V 6 V 5 1 Positive <0.0005mA ±2.5% -40 °C
RS庫存編號 121-9651
製造零件編號AP2127N-3.3TRG1
HK$0.634
個 (在毎卷:3000)
單位
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 3 1 Positive 90µA ±2% -40 °C
RS庫存編號 686-5774
製造零件編號SP6205EM5-L-3-3/TR
BrandEXAR
HK$4.931
/個 (每包:10個)
單位
- 3.3 V Fixed SOT-23 500mA Surface Mount 2.7 V 5.5 V 5 1 Positive 0.045mA ±2% -40 °C
RS庫存編號 516-5887
製造零件編號NCP1117DTAG
HK$3.582
/個 (每包:5個)
單位
- 1.25 → 18.8 V Adjustable DPAK 1A Surface Mount - 20 V 3 1 Positive 3.6mA ±1% 0 °C
RS庫存編號 919-9225
製造零件編號LT3070EUFDPBF
HK$52.341
毎管:73 個
單位
- 0.8 → 1.8 V Adjustable QFN 5A Surface Mount -0.3 V 4 V 28 4 Positive - ±1% -40 °C
RS庫存編號 298-8491
製造零件編號L4940V5
HK$12.20
單位
- 5 V Fixed TO-220 1.5A Through Hole - 17 V 3 1 Positive 5mA - -40 °C
RS庫存編號 785-7187
製造零件編號NCP1117LPST50T3G
HK$2.76
/個 (每包:20個)
單位
- 5 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 785-2426
製造零件編號NCP562SQ27T1G
HK$4.18
/個 (每包:10個)
單位
- 2.7 V Fixed SC-82 280mA Surface Mount - 6 V 4 1 Positive 6µA 2% -40 °C
RS庫存編號 162-5072
製造零件編號LM2936HVBMA-3.3/NOPB
HK$16.26
毎管:95 個
單位
- 3.3 V Fixed SOIC 50mA Surface Mount 4 V 60 V 8 1 Positive - ±2% -40 °C