MPQ2211-AEC1

MPQ2211-AEC1

6V, 12A, 2.2MHz, Configurable Current Limit, Synchronous Step-Down Converter, AEC-Q100 Qualified

概要

The MPQ2211-AEC1 is a fully integrated, high-frequency, synchronous buck converter. It offers a very compact solution to achieve up to 12A of output current (I_OUT) across a wide input supply range, with excellent load and line regulation. The device operates at high efficiency across a wide I_OUT load range.

The MPQ2211-AEC1 adopts an internally compensated constant-on-time (COT) control mode that provides fast transient response and eases loop stabilization. Pulse-skip mode (PSM) enables asynchronous operation to optimize light-load efficiency. The device also provides a fixed 2.2MHz frequency, allowing its frequency to remain constant regardless of the input voltage (V_IN) and output voltage (V_OUT).

The V_OUT start-up ramp is controlled by an internal 0.9ms timer, and can be increased by adding a capacitor on the SSTT pin. An open-drain power good (PG) signal indicates the output is within its nominal voltage range. The PG pin is clamped to about 0.7V with an external pull-up voltage if the input supply fails to power the MPQ2211-AEC1.

Fully integrated protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP).

The MPQ2211-AEC1 requires a minimal number of readily available, standard external components, and is available in an LGA-19 (3mmx3.5mm) package.

機能と利点

Designed for Automotive Point-of-Load (PoL) Applications:
- Wide Operating Input Voltage (V_IN) Range from 3V:
  - 3V to 3.6V Range with VCC Bias to V_IN
  - 4V to 6V Range with Internal Bias
- Up to 12A of Continuous Output Current (I_OUT)
- Configurable, Accurate Current Limit
- Constant-On-Time (COT) Control Provides Excellent Transient Response
- Available in AEC-Q100 Grade 1
Increases Battery Life:
- Pulse-Skip Mode (PSM) at Light Loads
- Internal Power MOSFET Switches
Optimized for EMC/EMI:
- 2.2MHz Switching Frequency (f_SW) in Forced Continuous Conduction Mode (FCCM)
- MeshConnect^TM Flip-Chip Package
Additional Features:
- Power Good (PG) Actively Clamped Low during Power Failures
- Output Voltage (V_OUT) Discharge
- V_OUT Tracking
- ±1% 0.5V Feedback (FB) Accuracy
- Configurable Soft-Start Time (t_SS) from 0.9ms
- Adjustable Output Up to 3.6V
- Non-Latched Over-Current Protection (OCP), Under-Voltage Protection (UVP), Under-Voltage Lockout (UVLO), Thermal Shutdown
- Latch-Off Over-Voltage Protection (OVP)
- Available in an LGA-19 (3mmx3.5mm) Package
Functional Safety System Design Capability:
- MPSafe^TM Compatible – Functional Safety Supporting Document Available