The BD9G family from ROHM is a series of switching buck regulator ICs with integrated power MOSFET which operate over a wide input-voltage range, and which can supply an output as low as 0.8 V.
Housed in a small, six-lead SOT-23 (SSOP) package, these non-synchronous regulators operate at high switching frequencies, enabling the use of a small inductor, and reducing system size. Phase compensation components are also built in.
The BD9G family consists of five parts capable of supplying a load current of up to 5 A and operating from an input voltage as high as 76 V.
| BD9G101G-TR | BD9G341AEFJ-E2 | BD9G201EFJ-LBE2 | BD9G401EFJ-ME2 | BD9G500EFJ-LAE2 |
Input-voltage Range (V) | 6 to 42 | 12 to 76 | 4.5 to 42 | 4.5 to 42 | 7 to 76 |
Output-voltage Range (V) | 1 to 29.4 | 1 to 76 | 0.8 to 42 | 0.8 to 42 | 1 to 68.4 |
Maximum Output Current (A) | 0.5 | 3 | 1.5 | 3.5 | 5 |
Maximum Switching Frequency (MHz) | 1.7 | 0.75 | 0.5 | 0.5 | 0.65 |
Light-load Mode | – | – | No | No | No |
Operating- | -40 to 105 | -40 to 85 | -40 to 105 | -40 to 105 | -40 to 125 |
Part Number Supported: BD9G101G
This evaluation board enables design engineers to evaluate the BD9G101G non-synchronous buck dc-dc converter, which has an integrated 45 V power MOSFET. Features include a wide input-voltage range of 6 V to 42 V, and an output-voltage range of 1 V to 29.4 V. Switching frequency is 1.5 MHz.
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