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 122-3355
製造零件編號AP2128K-3.3TRG1
HK$0.642
個 (在毎卷:3000)
單位
- 3.3 V Fixed SOT-23 - Surface Mount 2.5 V 6 V 5 1 Positive 90µA ±2% -40 °C
RS庫存編號 686-9224
製造零件編號LD1117S18CTR
HK$3.095
/個 (每包:10個)
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 535-8641
製造零件編號LM1117IMP-5.0/NOPB
HK$8.948
/個 (每包:5個)
單位
- 5 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive - ±1% -40 °C
RS庫存編號 825-8263
製造零件編號LP2985IM5-3.2/NOPB
HK$4.636
/個 (每包:10個)
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 847-2882
製造零件編號XRP6272ITC5TR-F
BrandEXAR
HK$5.645
/個 (每包:10個)
單位
- 0.7 → 5 V, 5 V Adjustable, Fixed TO-252 2A Surface Mount 1.8 V 6 V 5 1 Positive 30µA ±2% -40 °C
RS庫存編號 153-3313
製造零件編號LT1963AEQ-2.5#PBF
HK$34.351
毎管:50 個
單位
- 2.5 V Fixed D2PAK 1.5A Surface Mount 1.9 V 20 V 6 1 Positive 1mA - -40 °C
RS庫存編號 545-5742
製造零件編號LT1086CT-5#PBF
HK$41.34
單位
- 5 V Fixed TO-220 1.5A Through Hole - 20 V 3 1 Positive 5mA - 0 °C
RS庫存編號 821-1104
製造零件編號TC1055-3.3VCT713
BrandMicrochip
HK$2.016
個 (在毎卷:3000)
單位
- 3.3 V Fixed SOT-23 - Surface Mount 2.7 V 6.5 V 5 1 Positive - ±0.5% -40 °C
RS庫存編號 535-9240
製造零件編號LM1117IDT-ADJ/NOPB
HK$10.802
/個 (每包:5個)
單位
- 1.25 → 13.8 V Adjustable TO-252 1.5A Surface Mount - 15 V 3 1 Positive - ±1% -40 °C
RS庫存編號 100-3958
製造零件編號LM2936Z-5.0/NOPB
HK$7.949
個 (在毎卷:1800)
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 686-5774
製造零件編號SP6205EM5-L-3-3/TR
BrandEXAR
HK$5.006
/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 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 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 396-461
製造零件編號LT1963AEQ-2.5#PBF
HK$49.64
單位
- 2.5 V Fixed D2PAK 1.5A Surface Mount 1.9 V 20 V 6 1 Positive 1mA - -40 °C
RS庫存編號 651-3704
製造零件編號LM2936HVBMA-3.3/NOPB
HK$16.21
/個 (每包:5個)
單位
- 3.3 V Fixed SOIC 50mA Surface Mount 4 V 60 V 8 1 Positive - ±2% -40 °C
RS庫存編號 168-6058
製造零件編號L4940V5
HK$8.364
毎管:50 個
單位
- 5 V Fixed TO-220 1.5A Through Hole - 17 V 3 1 Positive 5mA - -40 °C
RS庫存編號 162-8424
製造零件編號TPS7A4533KTTR
HK$18.055
個 (在毎卷:500)
單位
- 3.3 V Fixed D2PAK 1.5A Through Hole 2.5 V - 5 1 Positive 1mA 1% -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
RS庫存編號 714-0701
製造零件編號LF33CDT-TR
HK$6.958
/個 (每包:5個)
單位
- 3.3 V Fixed DPAK 500mA Surface Mount - 16 V 3 1 Positive 0.5mA ±2% -40 °C
RS庫存編號 536-0313
製造零件編號LMS8117AMP-3.3/NOPB
HK$9.672
/個 (每包:5個)
單位
- 3.3 V Fixed SOT-223 1A Surface Mount 2.5 V 15 V 3+Tab 1 Positive - ±1% 0 °C