• Load Disconnection Control with an External P- Channel MOSFET
• Wide Input Voltage Range: 2.7V-14.0V
• Wide Output Voltage Range: 4.5V-14.6V
• Fully Integrated 13mΩ High Side FET 11mΩ Low Side FET
• Up to 92% Efficiency at Vin=3.6V, Vout=9V, Iout=3A
• Up to 12A Switch Current Programmable Peak Current Limit
• Typical Shut-down Current: 1uA
• Programmable Switching Frequency: 200kHz-2.2MHz
• Selectable PFM or Forced PWM Mode
• Programmable Soft Start
• Output Feedback Overvoltage Protection
• Thermal Shutdown Protection: 150°C
• Available in DFN-20 3.5mmx4.5mm Package
The SCT12A1 is a high
efficiency, fully integrated synonous boost converter with a 13mΩ high-side MOSFET a 11mΩ low-side MOSFET, supporting 2.7V to 14V input voltage range up to 12-A switch current. The switch current
limit can be adjustable with an external resistor. The device 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 s 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 device monitors
both output voltage feedback voltage to protect over-voltage condition. It
features cycle-by-cycle peak current limit thermal shutdown protection when
the device over loads. The SCT12A1 is available in a
low-profile package DFN-20L 3.5mmx4.5mmx0.9mm with enhanced thermal power pad.
APPLICATION
Bluetooth Audio, Power Banks, POS System, E-Cigarette, USB Power Delivery