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.
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Products in category “D30V33MAx Fine-Adjust Voltage Regulators”
| 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.
| 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.
| 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.
| 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.
