Cissoid FUJI
CISSOID at NAC Semi · High-Temperature DC-DC Converter Technology
EVK-FUJI Triple-Output DC-DC Converter
EVK-FUJI is a reference design for a non-isolated DC-DC converter operating in discontinuous conduction mode (DCM). It generates three output voltages from a single 12–28 V supply.
Default outputs are +5 V, +3.3 V and +1.8 V. Version B adds linear regulators to the 3.3 V and 1.8 V outputs for improved load regulation; version A has no additional regulators on those outputs.
EVK-FUJI TECHNOLOGY
DCM Flyback
12–28 V input
5 V / 3.3 V / 1.8 V
Typical Performance
Evaluation-board specifications from the FUJI product brief.
- Evaluation-board ambient temperature
- −55°C to +175°C; short excursions to +200°C (maximum 1 hour)
- IC junction temperature
- −55°C to +225°C
- Input voltage
- +12 V to +28 V
- Default outputs
- +5 V, +3.3 V and +1.8 V; customizable
- Power range
- 3.5 W
- Efficiency
- Up to 68%; depends on operating conditions
- Switching frequency
- 100 kHz
- Main components
- CHT-MAGMA controller and four CHT-NMOS8001 transistors
Refer to the FUJI product brief (PDF, opens in a new tab) for test conditions and operating limits.
Ordering Information
Compare the two FUJI evaluation boards below. Select a part number to search the NAC store.
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| Type | Product Brief | ||||
|---|---|---|---|---|---|
| EVK-VOL1088A | Evaluation board | 12 to 28 V | 5 V / 3.3 V / 1.8 V | No added 3.3 V / 1.8 V regulators | |
| EVK-VOL1088B | Evaluation board | 12 to 28 V | 5 V / 3.3 V / 1.8 V | Linear regulators on 3.3 V / 1.8 V |
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Engineering & distribution support
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