Voltage Regulators and Power Supplies » Step-Down (Buck) Voltage Regulators » D30V3x Step-Down Voltage Regulators »
D30V33MAx Fine-Adjust Voltage Regulators
The D30V33MAx family of buck (step-down) voltage regulators are larger, adjustable-output members of the broader D30V3x line of synchronous regulators that have through-holes for both 0.1″ headers and for 3.5mm-pitch terminal blocks.
They generate lower output voltages from input voltages as high as 45 V and can typically support continuous output currents between 1.3 A and 4.5 A, depending on the input voltage and output voltage. They also have very low dropout voltages.
Regulator | Output voltage | Typical max output current1 |
Input voltage2 | Adjustable low-voltage cutoff |
Size | Price |
---|---|---|---|---|---|---|
#4853: D30V33MAL | 1.4 V – 7 V | 3.8 A | 3.3 V – 45 V | – | 0.9″ × 1.2″ | $17.95 |
#4852: D30V33MALCMA | $20.95 | |||||
#4855: D30V33MAS | 4.2 V – 15 V | 3.3 A | 4.2 V – 45 V | – | $17.95 | |
#4854: D30V33MASCMA | $20.95 | |||||
1At 30 V in. Actual achievable continuous output current is a function of input and output voltages and is limited by thermal dissipation. | ||||||
2Operating voltage must be higher than the set output voltage and is subject to dropout voltage considerations. |
1.4-7V, 3.8A D30V33MALx | 4.2-15V, 3.3A D30V33MASx | ||
The output voltage is precision adjustable through an 11-turn potentiometer, and each version is available with or without an adjustable low-voltage cutoff (also set through a precision 11-turn potentiometer).
The regulators have reverse voltage protection up to 40 V, input under-voltage lockout, over-current protection, and short-circuit protection. A thermal shutdown feature also helps prevent damage from overheating and a soft-start feature limits the inrush current and gradually ramps the output voltage on startup.
Compare all products in this category
Products in category “D30V33MAx Fine-Adjust Voltage Regulators”
Pololu item #: 4852 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage range | Typical max current output1 | Input voltage range2 | Low-voltage cutoff |
---|---|---|---|
1.4 V – 7 V | 3.8 A | 3.3 V – 45 V | adjustable |
1 Typical continuous output current at 30 V in and 3.3 V out. Actual achievable continuous output current is a function of input and output voltages and is limited by thermal dissipation. See the output current graph on the product page for more information.
2 Input voltage must be higher than the output voltage and is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 4853 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage range | Typical max current output1 | Input voltage range2 | Low-voltage cutoff |
---|---|---|---|
1.4 V – 7 V | 3.8 A | 3.3 V – 45 V | none |
1 Typical continuous output current at 30 V in and 3.3 V out. Actual achievable continuous output current is a function of input and output voltages and is limited by thermal dissipation. See the output current graph on the product page for more information.
2 Input voltage must be higher than the output voltage and is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 4854 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage range | Typical max current output1 | Input voltage range2 | Low-voltage cutoff |
---|---|---|---|
4.2 V – 15 V | 3.3 A | 4.2 V – 45 V | adjustable |
1 Typical continuous output current at 30 V in and 9 V out. Actual achievable continuous output current is a function of input and output voltages and is limited by thermal dissipation. See the output current graph on the product page for more information.
2 Input voltage must be higher than the output voltage and is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 4855 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage range | Typical max current output1 | Input voltage range2 | Low-voltage cutoff |
---|---|---|---|
4.2 V – 15 V | 3.3 A | 4.2 V – 45 V | none |
1 Typical continuous output current at 30 V in and 9 V out. Actual achievable continuous output current is a function of input and output voltages and is limited by thermal dissipation. See the output current graph on the product page for more information.
2 Input voltage must be higher than the output voltage and is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.