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AIC2935B

36V 5A Synchronous Step-down Converter with Dual-Channel Current Limit

FEATURES
  • Wide input Voltage Range from 4V to 36V
  • 100% Duty Cycle Low Dropout Operation
  • 70ns Minimum On Time
  • Low EMI and Switching Noise
  • 180kHz Switching Frequency with Spread Spectrum Modulation
  • 5A Continuous Output Current
  • Integrated 40m High-side Switch and 40m Low-side Switch
  • Dual Outputs with Independent 8% Accurate Constant Current Regulation
  • Programmable Output Cable Drop Compensation
  • Internal 3ms Soft Start
  • Short Circuit Protection with Hiccup mode
  • Thermal Shutdown with Auto Recovery
  • Cycle-by-Cycle current limit
  • Available in SOP-8 Exposed Pad package
APPLICATIONS
  • Dual-Port Car Charger
  • Automotive and Industrial Supplies
  • Point of Load
DESCRIPTION
The AIC2935B is a high-efficiency, high-voltage,
synchronous step-down DC-DC converter with
integrated high-side and low-side power
MOSFETs. The AIC2935B uses proprietary constant
on-time (COT) control to provide excellent
line and load transient response. The AIC2935B
features slew rate control and spread spectrum
frequency modulation to minimize EMI/EMC
emissions. With wide input range from 4V to 36V,
the converter can deliver output voltage ranging
from 0.8V to VIN with up to 5A continuous output
current. The converter can be configured as single
output or dual outputs with independent constant
current (CC) regulation for each output. In
the event of output overload or short circuit, the
converter will be into hiccup mode. Other protection
features include cycle-by-cycle current limit,
input under and over voltage protection and
thermal shutdown. AIC2935B also provides programmable
cable voltage drop compensation by
selecting appropriate external resistor divider.
Switching frequency is internally set to 180kHz.
The AIC2935B is available in SOP-8 exposed
pad package.
TYPICAL APPLICATION


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