The MPQ70340FS-AEC1 is a power management IC (PMIC) solution that integrates three high-efficiency step-down DC/DC converters and a low-noise LDO. Unique dual-stage 36V buck architecture maximizes efficiency for the 1.8V image sensor input/output (I/O) rail in the CMOS sensor in high-resolution camera modules.

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

The PMBus interface allows for application flexibility. The output voltage (V_OUT), power sequence, and protection thresholds can all be adjusted via the PMBus. Fault statuses can also be monitored. Robust fault protections include under-voltage lockout (UVLO), over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown (TSD). The one-time programmable (OTP) memory is used to set such functions from the factory.

The MPQ70340FS-AEC1 is ISO 26262 ASIL-B hardware capable. Functional safety features include analog built-in self-testing (ABIST), diagnostics, a windowed watchdog timer, and a PG output pin. This PMIC is developed under MPS's advanced MPSafe^TM functional safety product development process, which has been independently certified to meet ISO 26262 guidelines.

The MPQ70340FS-AEC1 minimizes external component count, and is available in a space-saving QFN-15 (2.5mmx3.5mm) package with wettable flanks. It is available in AEC-Q100 Grade 1.