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SCT12A1---2.7V-14V Vin, 30W Fully Integrated Synchronous Boost Converter with Load Disconnection Control
2.7V-14V Vin, 30W Fully Integrated Synchronous Boost Converter
with Load Disconnection Control
FEATURES
• Wide Input Voltage Range: 2.7V-14.0V
• Wide Output Voltage Range: 4.5V-14.6V
• Fully Integrated 13mΩ High Side FET and
11mΩ Low Side FET
• Up to 92% Efficiency at Vin=3.6V, Vout=9V, and
Iout=3A
• Up to 12A Switch Current and Programmable
Peak Current Limit
• Load Disconnection Control with an External PChannel MOSFET
• Typical Shut-down Current: 1uA
• Programmable Switching Frequency: 200kHz2.2MHz
• Selectable PFM or Forced PWM Mode
• Programmable Soft Start
• Output and Feedback Overvoltage Protection
• Thermal Shutdown Protection: 150°C
• Available in DFN-20 3.5mmx4.5mm Package
APPLICATIONS
• Bluetooth Audio
• Power Banks
• POS System
• E-Cigarette
• USB Power Delivery
DESCRIPTION
The SCT12A1 is a high efficiency synchronous boost
converter with fully integrated a 13mΩ high-side
MOSFET and an 11mΩ low-side MOSFET,
supporting 2.7V to 14V input voltage range and up to
12-A switch current. The switch current limit can be
adjustable with an external resistor.
The SCT12A1 adapts constant off-time peak current
control to provide fast transient. An external
compensation network allows flexibility setting loop
dynamics to achieve optimal transient performance at
different load conditions. Using MODE pin selects
either Pulse Frequency Modulation (PFM) operation
or forced Pulse Width Modulation (PWM) operation.
The SCT12A1 offers the gate control for an external
P-channel MOSFET to disconnect load from boost
converter output. This safety feature prevents the
damage on load from input shooting through to output
in shutdown or output hard short to ground condition.
The SCT12A1 monitors both output voltage and
feedback voltage to protect overvoltage condition. It
features cycle-by-cycle peak current limit and thermal
shutdown protection when the device over loads.
The device is available in a low-profile package DFN20L 3.5mmx4.5mmx0.9mm with enhanced thermal
power pad.