SGM6603.pdf• 0.9V to 5.5V Input Voltage Range
• 3.3V and 5.0V Fixed Output Voltages
• Adjustable Output Voltage up to 5.5V
• Up to 90% Efficiency
• 30μA (TYP) Quiescent Current
• 1μA (MAX) Shutdown Current
• 6V Output Voltage Clamping
• Improved Light Load Efficiency
with Power-SaveMode (PSM)
• Load Disconnected in Shutdown
• Over-Temperature Protection
• Available in a Green SOT-23-6 Package
• -40℃ to +85℃ Operating Temperature Range
• Up to 96% Typical Efficiency
• 800 mA Typical Peak Input Current Limit:
IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT
IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT
• Low Start-Up Voltage: 0.65V, typical 3.3V VOUT @ 1 mA
• Low Operating Input Voltage: 0.35V, typical
3.3VOUT @ 1 mA
• Adjustable Output Voltage Range: 2.0V to 5.5V
• Maximum Input Voltage ≤VOUT < 5.5V
• Automatic PFM/PWM Operation (MCP1640/C):
PFM Operation Disabled (MCP1640B/D)
PWM Operation: 500 kHz
• Low Device Quiescent Current: 19 µA,
typical PFM Mode (not switching)
• Internal Synchronous Rectifier
• Internal Compensation
• Inrush Current Limiting and Internal Soft Start
• Selectable, Logic Controlled Shutdown States:
True Load Disconnect Option (MCP1640/B)
Input to Output Bypass Option (MCP1640C/D)
• Shutdown Current (All States): < 1 µA
• Low Noise, Anti-Ringing Control
• Overtemperature Protection
• Available Packages:
6-Lead SOT-23
8-Lead 2 x 3 mm DFN
