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 Stock No. 731-3791
Mfr. Part No.BAJ2CC0WFP-E2
BrandROHM
$2.556
Each (In a Pack of 5)
units
- 12 V Fixed TO-252 1A Surface Mount 4 V 25 V 5 1 - 0.01mA ±2% -40 °C
RS Stock No. 731-3849
Mfr. Part No.BD18KA5WF-E2
BrandROHM
$0.926
Each (In a Pack of 5)
units
- 1.8 V Fixed SOP 500mA Surface Mount 2.3 V 5.5 V 8 1 - 0.001mA ±1% -40 °C
RS Stock No. 731-6848
Mfr. Part No.BH18PB1WHFV-TR
BrandROHM
$0.334
Each (In a Pack of 5)
units
- 1.8 V Fixed HVSOF 150mA Surface Mount 1.7 V 5.5 V 5 1 - - ±1% -40 °C
RS Stock No. 128-8862
Mfr. Part No.BAJ2DD0T
BrandROHM
$3.276
Each (In a Pack of 5)
units
- 12 V Fixed TO-220FP 2A Through Hole 3 V 25 V 3+Tab 1 Positive - ±1% -40 °C
RS Stock No. 184-7071
Mfr. Part No.BH25NB1WHFV-TR
BrandROHM
$0.461
Each (On a Reel of 3000)
units
450 mV @ 100 mA 2.5 V Fixed HVSOF 150mA Surface Mount 2.5 V 5.5 V 5 1 - - ±1% -40 °C
RS Stock No. 184-7072
Mfr. Part No.BH28RB1WGUT-E2
BrandROHM
$0.803
Each (On a Reel of 3000)
units
150 mV @ 100 mA 2.8 V Fixed VCSP 150mA Surface Mount 2.5 V 5.5 V 4 1 - - ±1% -40 °C
RS Stock No. 167-7611
Mfr. Part No.BA00CC0WFP-E2
BrandROHM
$1.367
Each (In a Pack of 10)
units
0.5 V @ 500 mA 3 → 15 V Adjustable TO-252 1A Surface Mount 4 V 25 V 5 1 Positive - ±1% -40 °C
RS Stock No. 184-7073
Mfr. Part No.BH30M0AWHFV-TR
BrandROHM
$0.50
Each (On a Reel of 3000)
units
90 mV @ 100 mA 3 V Fixed HVSOF 300mA Surface Mount 2.5 V 5.5 V 6 1 - - ±1% -40 °C
RS Stock No. 171-7607
Mfr. Part No.BU12TD2WNVX-TL
BrandROHM
$0.385
Each (In a Pack of 100)
units
900mV 1.2 V Fixed SSON 200mA Surface Mount 1.7 V 6 V 4 1 Positive - ±1% -40 °C
RS Stock No. 184-7502
Mfr. Part No.BU18TA2WHFV-TR
BrandROHM
$0.526
Each (In a Pack of 50)
units
800 mV @ 200 mA 1.8 V Fixed HVSOF 200mA Surface Mount 2.5 V 5.5 V 5 1 - - ±1% -40 °C
RS Stock No. 775-7043
Mfr. Part No.BD30HA3WEFJ-E2
BrandROHM
$0.793
Each (In a Pack of 10)
units
- 3 V Fixed HTSOP 300mA Surface Mount 4.5 V 8 V 8 1 - - ±1% -25 °C
RS Stock No. 184-7509
Mfr. Part No.BD60GA5MEFJ-ME2
BrandROHM
$1.505
Each (In a Pack of 10)
units
1.2 V @ 0.5 A 6 V Fixed HTSOP 500mA Surface Mount 4.5 V 14 V 8 1 - - ±1% -40 °C
RS Stock No. 167-7387
Mfr. Part No.BAJ2DD0WHFP-TR
BrandROHM
$2.784
Each (In a Pack of 5)
units
0.7 V @ 2 A 12 V Fixed HRP 2A Surface Mount 3 V 25 V 5 1 Positive - ±1% -40 °C
RS Stock No. 171-7727
Mfr. Part No.BD18IC0MEFJ-ME2
BrandROHM
$1.204
Each (In a Pack of 25)
units
900mV 1.8 V Fixed HTSOP 1A Surface Mount 2.4 V 5.5 V 8 1 Positive - ±1% -40 °C
RS Stock No. 146-7446
Mfr. Part No.BDJ0GC0WEFJ-E2
BrandROHM
$0.44
Each (On a Reel of 2500)
units
- 10 V Fixed HTSOP-J 1A Surface Mount 4.5 V 14 V 8 1 Positive - ±1% -25 °C
RS Stock No. 124-6517
Mfr. Part No.BU33SD5WG-TR
BrandROHM
$0.436
Each (In a Pack of 20)
units
- 3.3 V Fixed SSOP 500mA Surface Mount 1.7 V 6 V 5 1 Positive - ±2% -40 °C
RS Stock No. 171-7681
Mfr. Part No.BD30HA5MEFJ-ME2
BrandROHM
$0.703
Each (On a Reel of 2500)
units
1.2V 3 V Fixed HTSOP 500mA Surface Mount 4.5 V 8 V 8 1 Positive - ±1% -40 °C
RS Stock No. 131-2753
Mfr. Part No.BU18JA2MNVX-CTL
BrandROHM
$0.711
Each (In a Pack of 10)
units
- 1.8 V Fixed SSON 200mA Surface Mount 1.7 V 6 V 4 1 Positive - ±2% -40 °C
RS Stock No. 171-7811
Mfr. Part No.BD00GC0MEFJ-ME2
BrandROHM
$1.605
Each (In a Pack of 25)
units
900mV 1.5 → 13 V Adjustable HTSOP 1A Surface Mount 4.5 V 14 V 8 - Positive - ±1% -40 °C
RS Stock No. 167-7431
Mfr. Part No.BA08CC0T
BrandROHM
$3.014
Each (In a Pack of 10)
units
0.5 V @ 500 mA 8 V Fixed TO-220FP 1A Through Hole 4 V 25 V 3 1 Positive - ±1% -40 °C