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 829-0371
製造零件編號LDCL015MR
HK$4.802
/個 (每包:10個)
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 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 145-2790
製造零件編號NCP1117DTAG
HK$2.841
毎管:75 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 504-5064
製造零件編號LM2936MP-3.3/NOPB
HK$14.08
/個 (每包:5個)
單位
- 3.3 V Fixed SOT-223 50mA Surface Mount 4 V 40 V 3+Tab 1 Positive - ±2% -40 °C
RS庫存編號 620-1401
製造零件編號TPS73033DBVT
HK$4.822
/個 (每包:10個)
單位
- 3.3 V Fixed SOT-23 200mA Surface Mount 2.7 V 5.5 V 5 1 Positive - ±2% -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 669-5092
製造零件編號MCP1825S-3302E/DB
BrandMicrochip
HK$4.46
/個 (每包:5個)
單位
- 3.3 V Fixed SOT-223 500mA Surface Mount 2.1 V 6 V 3+Tab 1 Positive 0.12mA ±0.5% -40 °C
RS庫存編號 145-6213
製造零件編號LT3080EMS8E#PBF
HK$22.525
毎管:50 個
單位
- 0 → 36 V Adjustable MSOP 1.1A Surface Mount 1.2 V 36 V 8 1 Positive - 1% -40 °C
RS庫存編號 178-5051
製造零件編號LD1085D2M-R
HK$5.06
個 (在毎卷:1000)
單位
- 1.25 → 28 V Adjustable D2PAK 3A Surface Mount - 30 V 3 1 Positive 5mA ±1% -40 °C
RS庫存編號 438-3955
製造零件編號TPS767D301PWP
HK$39.871
毎管:50 個
單位
- 1.5 → 5.5 V Adjustable, Fixed HTSSOP 1A Surface Mount 2.7 V 10 V 28 2 Positive 0.085mA ±2% -40 °C
RS庫存編號 163-2468
製造零件編號MC33269DTRK-3.3G
HK$2.235
個 (在毎卷:2500)
單位
- 3.3 V Fixed DPAK 800mA Surface Mount - 20 V 3 1 Positive 5.5mA ±1% -40 °C
RS庫存編號 785-2574
製造零件編號NCP663SQ27T1G
HK$4.74
/個 (每包:10個)
單位
- 2.7 V Fixed SC-82AB 280mA Surface Mount - 6 V 4 1 Positive 6µA 2% -40 °C
RS庫存編號 165-8446
製造零件編號AP7175SP-13
HK$3.095
個 (在毎卷:2500)
單位
- 0.8 → 3.1 V Adjustable SO-8EP 4A Surface Mount 1.2 V 3.65 V 8 2 Positive - ±1.5% -40 °C
RS庫存編號 913-4193
製造零件編號SP6205EM5-L-3-3/TR
BrandMaxLinear
HK$2.68
個 (在毎卷:2500)
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 178-8828
製造零件編號LP2989IM-3.3/NOPB
HK$22.80
毎管:95 個
單位
- 3.3 V Fixed SOIC 500mA Surface Mount 2.1 V 16 V 8 1 Positive - 1.25% -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 545-5742
製造零件編號LT1086CT-5#PBF
HK$39.97
單位
- 5 V Fixed TO-220 1.5A Through Hole - 20 V 3 1 Positive 5mA - 0 °C
RS庫存編號 535-8893
製造零件編號LM2937ES-3.3/NOPB
HK$20.714
/個 (每包:5個)
單位
- 3.3 V Fixed D2PAK (TO-263) 500mA Surface Mount 4.75 V 26 V 3 1 Positive - ±5% -40 °C
RS庫存編號 703-7905
製造零件編號TC1262-3.3VDB
BrandMicrochip
HK$4.49
單位
- 3.3 V Fixed SOT-223 500mA Surface Mount 2.7 V 6 V 3+Tab 1 Positive - ±0.5% -40 °C
RS庫存編號 919-9045
製造零件編號LT1117CST-3.3PBF
HK$22.835
毎管:78 個
單位
- 3.3 V Fixed SOT-223 800mA Surface Mount - 15 V 3+Tab 1 Positive 10mA - 0 °C