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D45V1ExFx Step-Down Voltage Regulators
The D45V1Ex line of synchronous buck (step-down) voltage regulators generate lower voltages from input voltages as high as 65 V while delivering up to 100 mA continuous. They are switching regulators with very low quiescent currents (< 30 μA typical), which allows for extra high efficiencies at low currents compared to linear regulators and typical switching regulators. This kind of regulator is also called a switched-mode power supply (SMPS) or DC-to-DC converter.
D45V1ExFx line of step-down voltage regulators: D45V1E2Fx (left) and D45V1E1Fx (right). |
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This line consists of the D45V1E1Fx family, which is just 0.3″ × 0.5″ and intended for applications with tighter space constraints, and the larger (0.5″ × 0.6″) D45V1E2Fx family, which features a precision-threshold enable input for turning the regulator off and a power-good output that can be used for sequencing and voltage monitoring.
Regulator | Output voltage |
Input voltage1 |
Max output current |
Size | EN input + PG output |
Price | |
---|---|---|---|---|---|---|---|
D45V1E1Fx |
#5362: D45V1E1F3 | 3.3 V | 3.3 V – 65 V | 100 mA | 0.3″ × 0.5″ | – | $4.69 |
#5363: D45V1E1F5 | 5 V | 5 V – 65 V | |||||
#5367: D45V1E1F12 | 12 V | 12 V – 65 V | |||||
D45V1E2Fx |
#5372: D45V1E2F3 | 3.3 V | 3.3 V – 65 V | 100 mA | 0.5″ × 0.6″ | $4.69 | |
#5373: D45V1E2F5 | 5 V | 5 V – 65 V | |||||
#5377: D45V1E2F12 | 12 V | 12 V – 65 V | |||||
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information. |
The regulators feature short circuit protection and thermal shutdown protection, which helps prevent damage from overheating. The boards do not have reverse-voltage protection.
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Products in category “D45V1ExFx Step-Down Voltage Regulators”
Pololu item #: 5362 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage | Typical max current output | Input voltage range1 | Size | EN input |
---|---|---|---|---|
3.3 V | 100 mA | 3.3 V – 65 V | 0.3″ × 0.5″ | - |
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 5363 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage | Typical max current output | Input voltage range1 | Size | EN input |
---|---|---|---|---|
5 V | 100 mA | 5 V – 65 V | 0.3″ × 0.5″ | - |
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 5367 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage | Typical max current output | Input voltage range1 | Size | EN input |
---|---|---|---|---|
12 V | 100 mA | 12 V – 65 V | 0.3″ × 0.5″ | - |
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 5372 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage | Typical max current output | Input voltage range1 | Size | EN input |
---|---|---|---|---|
3.3 V | 100 mA | 3.3 V – 65 V | 0.5″ × 0.6″ |
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 5373 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage | Typical max current output | Input voltage range1 | Size | EN input |
---|---|---|---|---|
5 V | 100 mA | 5 V – 65 V | 0.5″ × 0.6″ |
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.
Pololu item #: 5377 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
Output voltage | Typical max current output | Input voltage range1 | Size | EN input |
---|---|---|---|---|
12 V | 100 mA | 12 V – 65 V | 0.5″ × 0.6″ |
1 Minimum input voltage is subject to dropout voltage considerations; see the dropout voltage section of product pages for more information.