MPQ4111-AEC1

MPQ4111-AEC1

20V, 0.5A to 4A, Low Quiescent Current, Synchronous Step-Down Converter, AEC-Q100 Qualified

详情

The MPQ4111-AEC1 is a configurable-frequency (200kHz to 2.5MHz), synchronous, step-down switching regulator with integrated internal high-side and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device provides 0.5A to 4A of highly efficient output current (I_OUT) with peak current mode control.

The wide 3V to 20V input voltage (V_IN) range accommodates a variety of step-down applications in automotive input environments. A 0.5μA shutdown current (I_SD) 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 (f_SW) under light-load conditions to reduce switching and gate driver losses. An open-drain power good (PG) signal indicates whether the output is within 94.5% to 105.5% of its nominal voltage.

Frequency foldback helps prevent inductor current (I_L) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. High duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions.

The MPQ4111-AEC1 is available in QFN-12 (2mmx3mm), QFN-12 (3mmx4mm), and QFN-14 (2.5mmx3.5mm) packages. It is AEC-Q100 qualified.

产品特性和优势

Designed for Automotive Applications:
- Wide 3V to 20V Operating Input Voltage (V_IN) Range
- Supports Cold Crank Down to 3V
- Low-Dropout (LDO) Mode with Soft Recovery
- 0.5A to 4A Continuous Output Current (I_OUT) Versions in Pin-Compatible Family
- 55ns Minimum On Time (t_{ON_MIN}), 45ns Minimum Off Time (t_{OFF_MIN})
- Available in AEC-Q100 Grade 1
Increases Battery Life:
- 0.5μA Shutdown Current (I_SD)
- 20μA Sleep Mode Quiescent Current (I_Q)
- Advanced Asynchronous Modulation (AAM) Mode Increases Light-Load Efficiency
- Integrated High-Side MOSFET and Low-Side MOSFET (HS-FET and LS-FET, Respectively)

Optimized for EMC/EMI Reduction:

CISPR 25 Class 5 Compliant
200kHz to 2.5MHz Configurable Switching Frequency (f_SW)
Synchronizable to an External Clock
Frequency Spread Spectrum (FSS)
Symmetric VIN Pinout
MeshConnect^TM Flip-Chip Package

Additional Features:

Power Good (PG) Output
Over-Current Protection (OCP) with Hiccup Mode
Fixed-Output Options: 1V, 1.8V, 2.5V, 3V, 3.3V, 3.8V, or 5V
Available in a QFN-12 (2mmx3mm), QFN-12 (3mmx4mm), or QFN-14(2.5mmx3.5mm) Package
Available in a Wettable-Flank Package

Functional Safety System Design Capable: