MPQ7920-AEC1

5V PMIC with Four 2A/2.5A/4.5A/4.5A Buck Converters, 5 LDOs, and Flexible System Settings via I²C and MTP, AEC-Q100

Description

The MPQ7920 is a complete power management solution that integrates four high-efficiency step-down DC/DC converters, five low-dropout regulators, and a flexible logic interface.

Constant-on-time (COT) control in the DC/DC converter provides fast transient response. The adjustable switching frequency (up to 2.75MHz) during continuous conduction mode (CCM) greatly reduces the external inductor and capacitor values. Full protection features include under-voltage lockout (UVLO), over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown.

The output voltage is adjustable through the I²C bus or preset by the multiple-time programmable (MTP) memory. The on/off sequence can be configured via the MTP or controlled through the I²C bus online.

The MPQ7920 requires a minimal number of external components, and it is available in a space-saving QFN-26 (3.5mmx4.5mm) package with wettable flanks. This part is AEC-Q100 qualified.

Features & Benefits

High-Efficiency Step-Down Converters:
- Buck 1: 4.5A DC/DC Converter
- Buck 2: 2.5A DC/DC Converter
- Buck 3: 4.5A DC/DC Converter
- Buck 4: 2A DC/DC Converter
- Buck 1 and Buck 3 can Work in Parallel
- Buck 2 and Buck 4 can Work in Parallel
- 2.7V to 5.5V Operating Input Range
- 0.4V to 3.58V with 12.5mV/Step, or 0.4V to 2.2V with 7.4mV/Step Optional V_OUT Ranges for Buck 1, Buck 2, and Buck 3
- 0.4V to 3.58V with 12.5mV/Step V_OUT Range for Buck 4
- Adjustable Switching Frequency
- Adjustable Soft-Start Time
- Adjustable Phase Delay
- Configurable Forced PWM, Auto-PFM/PWM
- Output OCP, OVP
Low-Dropout Regulators:
- One RTC-Dedicated LDO
- Four Low-Noise LDOs
- Two Separate Input Power Supplies
- 50mV Dropout at 300mA Load
System:
- I²C Bus and User Programmable MTP
- Two-Time Programmable MTP
- Power On/Off Control
- Multi-Function Pin: LDO2/EN1 (EN1 Input Logic Level ≤ 3.3V)
- Power-On Reset Output
- Flexible Power On/Off Sequence via MTP (0.5ms, 2ms, 8ms, or 16ms Selectable Time Slot)
- Flexible DC/DC, LDO On/Off via MTP
- ±4kV HBM and ±2kV CDM ESD Rating for All Pins
- Available in a QFN-26 (3.5mmx4.5mm) Package
- Available in AEC-Q100 Grade 1