MPQ7928-AEC1

MPQ7928-AEC1

MPSafe^TM QM, 18V, 4-Channel PMIC with 3 Bucks and 1 LDO, AEC-Q100 Qualified

详情

The MPQ7928-AEC1 is a power management solution that integrates three high-efficiency step-down DC/DC converters and a low-noise low-dropout (LDO) regulator. The unique, dual-stage, 18V buck architecture maximizes efficiency for the 1.8V image sensor input/outout (I/O) rail in the CMOS sensor found in high-resolution camera modules.

Constant-on-time (COT) control with a phase-locked loop (PLL) provides a fast transient response. The 2.2MHz fixed switching frequency (f_SW) during continuous conduction mode (CCM) mode greatly reduces external inductor and capacitor requirements.

The I²C digital interface allows for application flexibility. The output voltage (V_OUT), power sequence, and protection thresholds can all be adjusted through the interface. Fault statuses can also be monitored. Protection features include under-voltage lockout (UVLO), over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown (TSD).

The MPQ7928-AEC1 minimizes the need for external components, and is available in a space-saving QFN-15 (2.5mmx3.5mm) package with wettable flanks. It is available in AEC-Q100 Grade 1.

产品特性和优势

Optimized for Automotive Cameras:
- Buck 1: 600mA with 3.5V to 18V Input Voltage (V_IN)
- Buck 2: 600mA with 3.5V to 18V V_IN
- Buck 3: 1A with 2.5V to 4V V_IN
- LDO: 200mA for Large CMOS Sensors
Optimized for EMC/EMI:
- 2.2MHz Fixed Switching Frequency (f_SW)
- Frequency Spread Spectrum (FSS) with On/Off Function
- Symmetric Input Capacitor for Better EMI
- CISPR 25 Class 5 Compliant
- MeshConnect^TM Flip-Chip Package
Additional Features:
- Selectable Discontinuous Conduction Mode (DCM) and Forced Continuous Conduction Mode (FCCM)
- Over-Current Protection (OCP) with Valley-Current Detection and Hiccup Mode
- Power Good (PG) Output
- I²C-Compatible Interface with Packet Error Checking (PEC)
- Available in a QFN-15 (2.5mmx3.5mm) Package
- Available with Wettable Flanks
- Available in AEC-Q100 Grade 1
Functional Safety System Design Capable:
- MPSafe^TM QM Documentation Available