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 858-0838
製造零件編號LT1084CT-12#PBF
HK$70.11
單位
- 11.76 → 12.24 V Fixed TO-220 5A Through Hole - 25 V 3 1 Positive 10mA - 0 °C
RS庫存編號 168-6804
製造零件編號LD1117S33TR
HK$1.07
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% 0 °C
RS庫存編號 162-8417
製造零件編號TPS73801DCQR
HK$17.509
個 (在毎卷:2500)
單位
- 1.21 → 20 V Adjustable SOT-223 1A Surface Mount 2.2 V 20 V 5+Tab 1 Positive 1µA - -40 °C
RS庫存編號 178-9233
製造零件編號LM2931AT-5.0/NOPB
HK$12.228
毎管:45 個
單位
- 5 V Fixed TO-220 100mA Through Hole - - 3 1 Positive - ±3.8% -40 °C
RS庫存編號 122-0131
製造零件編號NCP59151MN50TYG
HK$7.809
個 (在毎卷:4000)
單位
- 5 V Fixed DFN 1.5A Surface Mount 2.24 V 13.5 V 8 1 Positive 80mA ±2% -40 °C
RS庫存編號 155-9378
製造零件編號LT1084CT-12#PBF
HK$55.435
毎管:50 個
單位
- 11.76 → 12.24 V Fixed TO-220 5A Through Hole - 25 V 3 1 Positive 10mA - 0 °C
RS庫存編號 145-6887
製造零件編號TPS71812-33DRVT
HK$8.883
個 (在毎卷:250)
單位
- 1.2 V, 3.3 V Fixed SON 200mA Surface Mount 2.7 V 6.5 V 6 2 Positive 0.09mA ±2.5% -40 °C
RS庫存編號 460-859
製造零件編號LM2931AT-5.0/NOPB
HK$9.212
/個 (每包:5個)
單位
- 5 V Fixed TO-220 100mA Through Hole - - 3 1 Positive - ±3.8% -40 °C
RS庫存編號 545-8381
製造零件編號TPS79933DDCT
HK$6.604
/個 (每包:5個)
單位
- 3.3 V Fixed SOT-23 200mA Surface Mount 2.7 V 6.5 V 5 1 Positive 0.04mA ±1% -40 °C
RS庫存編號 165-4613
製造零件編號TC1014-2.5VCT713
BrandMicrochip
HK$2.282
個 (在毎卷:3000)
單位
- 2.5 V Fixed SOT-23 50mA Surface Mount 2.7 V 6 V 5 1 Positive <0.0005mA ±2.5% -40 °C
RS庫存編號 827-0569
製造零件編號NCP703SN33T1G
HK$4.06
/個 (每包:25個)
單位
- 3.3 V Fixed TSOP 750mA Surface Mount 2 V 5.5 V 5 1 Positive 20µA ±2% -40 °C
RS庫存編號 100-5911
製造零件編號LM1084IT-3.3/NOPB
HK$15.291
毎管:45 個
單位
- 3.3 V Fixed TO-220 5A Through Hole 2.6 V 27 V 3 1 Positive - - -40 °C
RS庫存編號 163-0152
製造零件編號NCP703SN33T1G
HK$2.994
個 (在毎卷:3000)
單位
- 3.3 V Fixed TSOP 750mA Surface Mount 2 V 5.5 V 5 1 Positive 20µA ±2% -40 °C
RS庫存編號 533-9319
製造零件編號LM1084IT-3.3/NOPB
HK$22.73
單位
- 3.3 V Fixed TO-220 5A Through Hole 2.6 V 27 V 3 1 Positive - - -40 °C
RS庫存編號 100-5912
製造零件編號LM1084IT-5.0/NOPB
HK$15.291
毎管:45 個
單位
- 5 V Fixed TO-220 5A Through Hole 2.6 V 25 V 3 1 Positive - - -40 °C
RS庫存編號 145-1188
製造零件編號LT1085CT-5#PBF
HK$46.515
毎管:50 個
單位
- 5 V Fixed TO-220 3A Through Hole 4.3 V 25 V 3 1 Positive 5mA ±1% 0 °C
RS庫存編號 100-5922
製造零件編號LM1086IS-3.3/NOPB
HK$12.327
毎管:45 個
單位
- 3.3 V Fixed D2PAK (TO-263) 1.5A Surface Mount 2.6 V 30 V 3 1 Positive - - -40 °C
RS庫存編號 162-9541
製造零件編號NCP563SQ15T1G
HK$1.774
個 (在毎卷:3000)
單位
- 1.5 V Fixed SC-82 280mA Surface Mount - 6 V 4 1 Positive 6µA 2% -40 °C
RS庫存編號 102-5684
製造零件編號LM1117MP-2.5/NOPB
HK$4.931
個 (在毎卷:1000)
單位
- 2.5 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% 0 °C
RS庫存編號 332-950
製造零件編號MAX1659ESA+
BrandMaxim
HK$40.08
單位
- 1.25 → 16 V Adjustable, Fixed SOIC 350mA Surface Mount 2.7 V 16.5 V 8 1 Positive - ±3% -40 °C