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 912-6350
製造零件編號ADP3338AKCZ-3.3RL7
HK$13.925
個 (在毎卷:500)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount 2.7 V 8 V 3+Tab 1 Positive 0.11mA ±0.8% -40 °C
RS庫存編號 858-0832
製造零件編號LT1084CT-5#PBF
HK$79.34
單位
- 4.9 5.1 V Fixed TO-220 5A Through Hole - 20 V 3 1 Positive 10mA - 0 °C
RS庫存編號 145-5825
製造零件編號TLV70033DDCT
HK$1.754
個 (在毎卷:250)
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 761-8147
製造零件編號LT1175CS8-5#PBF
HK$53.88
單位
- -5 V Fixed SOIC 500mA Surface Mount - 25 V 8 1 Negative 0.045mA 2.5% 0 °C
RS庫存編號 165-5927
製造零件編號LDCL015MR
HK$4.837
個 (在毎卷:3000)
單位
- 0.8 → 5 V Adjustable SOT-23 150mA Surface Mount 1.8 V 5.5 V 5 1 Positive 160µA ±3% -40 °C
RS庫存編號 761-8052
製造零件編號LT1117CST-3.3#PBF
HK$40.25
單位
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive 10mA - 0 °C
RS庫存編號 162-4783
製造零件編號LMS1587CT-ADJ/NOPB
HK$13.124
毎管:45 個
單位
- - - - - - - - - - - - - -
RS庫存編號 100-5932
製造零件編號LM1117MP-ADJ/NOPB
HK$3.926
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 168-6560
製造零件編號LD1117S18CTR
HK$1.151
個 (在毎卷:2500)
單位
- 1.8 V Fixed SOT-223 1.3A Surface Mount - 15 V 3+Tab 1 Positive 5mA ±1% -40 °C
RS庫存編號 919-8759
製造零件編號TLE4264GHTSA1
BrandInfineon
HK$7.622
個 (在毎卷:1000)
單位
- 5 V Fixed SOT-223 120mA Surface Mount 5.5 V 45 V 3+Tab 1 Positive 9mA ±2% -40 °C
RS庫存編號 738-6219
製造零件編號TC1014-3.3VCT713
BrandMicrochip
HK$2.592
/個 (每包:10個)
單位
- 3.3 V Fixed SOT-23 50mA Surface Mount 2.7 V 6 V 5 1 Positive - ±2.5% -40 °C
RS庫存編號 828-7356
製造零件編號AP2125N-3.3TRG1
HK$0.826
/個 (每包:100個)
單位
- 3.3 V Fixed SOT-23 - Surface Mount - 6 V 3 1 Positive 90µA ±2% -40 °C
RS庫存編號 534-4642
製造零件編號LMS1587CT-ADJ/NOPB
HK$18.31
單位
- - Adjustable TO-220 3A Through Hole 2.4 V 13 V 3 1 Positive - - 0 °C
RS庫存編號 100-3956
製造零件編號LM2931Z-5.0/NOPB
HK$2.967
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 162-8634
製造零件編號LP2985IM5-3.2/NOPB
HK$2.878
個 (在毎卷:1000)
單位
- 3.2 V Fixed SOT-23 350mA Surface Mount 2.2 V 16 V 5 1 Positive <1µA 1% -40 °C
RS庫存編號 165-5624
製造零件編號IFX21401MBHTSA1
BrandInfineon
HK$1.17
個 (在毎卷:3000)
單位
- - Tracking SCT595 50mA Surface Mount 4 V 45 V 5 - Positive 140µA 0.5% -40 °C
RS庫存編號 516-5887
製造零件編號NCP1117DTAG
HK$3.348
/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 170-8930
製造零件編號AZ1085CD-ADJTRG1
HK$1.34
個 (在毎卷:2500)
單位
- - Adjustable TO-252 3A Surface Mount - 12 V 3 1 Positive 10mA - 0 °C
RS庫存編號 826-9383
製造零件編號IFX21401MBHTSA1
BrandInfineon
HK$1.718
/個 (每包:100個)
單位
- - Tracking SCT595 50mA Surface Mount 4 V 45 V 5 - Positive 140µA 0.5% -40 °C
RS庫存編號 144-5724
製造零件編號MCP1702-1802E/TO
BrandMicrochip
HK$3.161
個 (以毎袋:1000)
單位
- 1.8 V Fixed TO-92 250mA Through Hole 2.7 V 13.2 V 3 1 Positive 0.002mA ±0.4% -40 °C