MPQ4313-AEC1
45V, 3A, Low IQ Synchronous Step-Down Converter with Frequency Spread Spectrum, AEC-Q100 Qualified
Active Part Numbers:
MPQ4313GRE-AEC1-P MPQ4313GRE-AEC1-Z MPQ4313GRE-33-AEC1-P MPQ4313GRE-33-AEC1-Z MPQ4313GRE-5-AEC1-P MPQ4313GRE-5-AEC1-Z
Meaning of P & Z 
Related Products
EVQ4313-R-01A 45V, 3A, Low-IQ, Synchronous Step-Down Converter with Frequency Spread Spectrum Evaluation Board, AEC-Q100 Qualified
The EVQ4313-R-01A evaluation board is designed to demonstrate the capabilities of the MPQ4313, a synchronous, step-down switching regulator with a configurable frequency and an integrated, internal high-side MOSFET (HS-FET) and low-side MOSFET (LS-FET). The MPQ4313 provides up to 3A of highly efficient output current (IOUT), with current mode control for fast loop response.
The wide 3.3V to 45V input voltage (VIN) range accommodates a variety of step-down applications in automotive input environments. A 1.7μA quiescent current (IQ) in shutdown mode allows the device to be used in battery-powered applications. High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (fSW) under light-load conditions to reduce switching and gate driver losses.
Frequency foldback helps prevent inductor current (IL) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. A high duty cycle and low-dropout mode are provided for automotive cold crank conditions.
The EVQ4313-R-01A is fully assembled and tested. The MPQ4313 is available in a QFN-20 (4mmx4mm) package with wettable flank, and is AEC-Q100 Grade 1 qualified.
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