工作范围 : Vin +4.5V ~ +16V、-40℃ ~ +85℃
IC 封装 : 3mm x 3mm 20-pad QFN
产品特性： • Single/Dual Step-Down DC-DC Outputs
- Integrated power MOSFET switches
- 1A/2A/4A output current with built in current limit
- Input voltage range: +4.5V to +16V
- +0.8V to +5.0V output voltage (+/-2.5% accuracy)
- Automatic PFM mode for light load efficiency
- 180〫phase interleave (SMB207/A/208/A)
- Integrated frequency compensation
- Input undervoltage lockout (UVLO)
• Integrated Power Control and Programmability
- I2C Digital or Pin Control
- Coarse and Fine Output Voltage Setting
- 16-level “Coarse” nominal setpoint : +0.8V to +1.8V @ 100mV/step
- 16-level “Coarse” nominal setpoint : +2.5/2.3/3.0/3.3/5.0V
- 8-level “Fine” Margining (20XA only) : +1.14% to +7.95% (vs. coarse setting)
- PWM frequency: 500kHz or 1MHz
- Output up/down sequence (SMB207/A/208/A)
- Digital output softstart/stop
- Output UV monitoring with PGOOD/RESET output
- Independent output enable pins (SMB207/A/208/A)
产品应用：
• Digital Television
• Cable/Satellite STB
• Broadband Modems/Gateways/Routers
• SOHO Datacom Equipment
• Embedded Computers
• Disk Drives
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