PD‐97745
12A Highly Integrated SupIRBuck Single‐Input Voltage, Synchronous Buck Regulator - 1 -`
IR3894
FEATURE...
PD‐97745
12A Highly Integrated SupIRBuck Single‐Input Voltage, Synchronous Buck
Regulator - 1 -`
IR3894
FEATURES
Single 5V to 21V application Wide Input Voltage Range from 1.0V to 21V with external Vcc Output Voltage Range: 0.5V to 0.86* Vin Enhanced Line/Load Regulation with Feed‐Forward Programmable Switching Frequency up to 1.5MHz Internal Digital Soft‐Start/Soft‐Stop Enable input with Voltage Monitoring Capability Thermally Compensated Current Limit with robust hiccup mode over current protection Smart internal LDO to improve light load and full load efficiency External Synchronization with Smooth Clocking Enhanced Pre‐Bias Start‐Up Precision Reference Voltage (0.5V+/‐0.5%) with margining capability Vp for Tracking Applications ((Source/Sink Capability +/‐12A) Integrated MOSFET drivers and Bootstrap Diode Thermal Shut Down Programmable Power Good Output with tracking capability Monotonic Start‐Up Operating temp: ‐40oC < Tj < 125oC Small Size: 5mm x 6mm PQFN Lead‐free, Halogen‐free and RoHS Compliant
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The IR3894 SupIRBuckTM is an easy‐to‐use, fully integrated and highly efficient DC/DC
regulator. The onboard PWM controller and MOSFETs make IR3894 a space‐efficient solution, providing accurate power delivery. IR3894 is a versatile
regulator which offers programmable switching frequency and the fixed internal current limit The switching frequency is programmable fro...