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 102-5684
製造零件編號LM1117MP-2.5/NOPB
HK$4.738
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 146-0950
製造零件編號AZ1117H-3.3TRE1
HK$0.963
個 (在毎卷:4000)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount - 15 V 3+Tab 1 Positive 10mA 1% -40 °C
RS庫存編號 173-2290
製造零件編號NJM2370U1-33
HK$3.988
個 (在毎卷:2000)
單位
- 3.3 V Fixed SOT-89 180mA Surface Mount - 20 V 6 1 Positive 0.18mA 3% -40 °C
RS庫存編號 821-3320
製造零件編號NCP692MN33T2G
HK$6.365
/個 (每包:10個)
單位
- 3.3 V Fixed DFN 1A Surface Mount 1.5 V 6 V 6 1 Positive - ±2% -40 °C
RS庫存編號 533-5648
製造零件編號LM2941CT/NOPB
HK$14.02
單位
- 5 → 20 V Adjustable TO-220 1A Through Hole -15 V 26 V 5 1 Positive - - 0 °C
RS庫存編號 100-5939
製造零件編號LM3940IT-3.3/NOPB
HK$15.612
毎管:45 個
單位
- 3.3 V Fixed TO-220 1A Through Hole 4.5 V 7.5 V 3 1 Positive - - -40 °C
RS庫存編號 651-9960
製造零件編號LP2985IM5-3.3/NOPB
HK$6.96
單位
- 3.3 V Fixed SOT-23 150mA Surface Mount 2.5 V 16 V 5 1 Positive - ±3% -40 °C
RS庫存編號 921-0701
製造零件編號AZ1117H-3.3TRE1
HK$2.73
/個 (每包:50個)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount - 15 V 3+Tab 1 Positive 10mA 1% -40 °C
RS庫存編號 170-9148
製造零件編號HT7533-1-SOT89
BrandHoltek
HK$3.795
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 822-8874
製造零件編號AP7331-33WG-7
HK$3.028
/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 620-0852
製造零件編號REG1117-3.3
HK$21.58
/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 761-8150
製造零件編號LT1175IS8-5#PBF
HK$82.40
單位
- -5 V Fixed SOIC 500mA Surface Mount - 25 V 8 1 Negative 0.045mA 2.5% -40 °C
RS庫存編號 533-9448
製造零件編號LM1086CT-3.3/NOPB
HK$16.73
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 773-7825
製造零件編號NCP1117DT33RKG
HK$3.935
/個 (每包:10個)
單位
- 3.3 V Fixed DPAK 2.2A Surface Mount - 20 V 3 1 Positive 10mA ±1% -55 °C
RS庫存編號 709-9155
製造零件編號TPS7A4501KTTR
HK$29.88
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 785-2568
製造零件編號NCP630AD2TR4G
HK$9.342
/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 884-2556
製造零件編號LT1963AET#PBF
HK$54.29
/個 (每包:2個)
單位
- 1.21 → 20 V Adjustable TO-220 1.5A Through Hole 2.5 V 20 V 5 1 Positive 1µA - -40 °C
RS庫存編號 100-5913
製造零件編號LM1084IT-ADJ/NOPB
HK$22.304
毎管:45 個
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 802-2137
製造零件編號NCP1117LPST33T3G
HK$2.915
/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 163-0992
製造零件編號NCP1117DT33RKG
HK$1.80
個 (在毎卷:2500)
單位
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