This powerful synchronous switching step-down (or buck) regulator takes an input voltage from 4.5 V to 50 V and efficiently reduces it to 3.3 V. The board measures only 1″ × 1″ yet delivers typical maximum continuous output currents between 4.5 A and 9.5 A, depending on the input voltage, which makes it well suited for powering moderate to large loads. An optional enable input with a precise cutoff threshold can be used to put the regulator in a low-power state with a current draw of 10 µA to 20 µA per volt on VIN. The regulator also features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.
Alternatives available with variations in these parameter(s):
output voltage
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Compare all products in D36V50Fx Step-Down Voltage Regulators.
Dimensions
Size:
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1″ × 1″ × 0.375″1
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Weight:
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7.0 g1
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General specifications
Minimum operating voltage:
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4.5 V
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Maximum operating voltage:
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50 V
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Continuous output current:
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6.5 A2
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Output voltage:
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3.3 V
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Reverse voltage protection?:
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Y3
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Maximum quiescent current:
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4 mA4
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Output type:
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fixed 3.3V
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Identifying markings
PCB dev codes:
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reg24d
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Other PCB markings:
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0J12574, blank white box
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Notes:
- 1
- Without included optional headers.
- 2
- Typical continuous output current at 36 V in. Actual achievable continuous output current is a function of input voltage and is limited by thermal dissipation. See the output current graph under the description tab for more information.
- 3
- To -40 V. Connecting supplies over 40 V in reverse can damage the device.
- 4
- While enabled with no load. Can be reduced to under 1 mA using the enable pin.