Renesas DA9223-XXFT1-A

Overview

DA9223-XXFT1-A from Renesas Electronics is a single four-phase synchronous buck converter PMIC optimized for automotive CPU/GPU/DDR power delivery, delivering up to 16 A output current with ±1 % static voltage accuracy, 3 MHz switching frequency, and remote sensing capability for point-of-load regulation in ADAS and infotainment systems.

For engineers reviewing the DA9223-XXFT1-A datasheet, DA9223-XXFT1-A pinout, DA9223-XXFT1-A application, or DA9223-XXFT1-A equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification, integrated power switches, dynamic voltage control (DVC) via I²C/SPI, programmable soft start, and 66-ball TFBGA 0.8 mm pitch package with dedicated phase and sense pins.

Technical Context

The DA9223-XXFT1-A implements a fully integrated four-phase interleaved buck architecture with internal high-side and low-side MOSFETs (RON_PMOS = 29 mΩ, RON_NMOS = 21 mΩ), supporting automatic phase shedding and fast transient response (±2 % load regulation at 5 A step, 500 ns rise time). Its digital core uses a 6 MHz internal oscillator and supports both 2-wire (I²C-compatible) and 4-wire serial interfaces for register-based configuration.

It features dual feedback paths: FBAP/FBAN for Buck A with remote sensing, while FBBP/FBBN are no-connect (NC) for DA9223-XXFT1-A - confirming its single-buck topology. Voltage regulation spans 0.3 V–1.57 V internally, extendable to 4.3 V via external resistor divider, with input range 2.8 V–5.5 V suitable for Li-ion battery systems.

Key Specifications

Pinout & Package

DA9223-XXFT1-A uses a 66-ball TFBGA package with 0.8 mm pitch, designed for high-density automotive PCBs and thermal performance (θJA = 34.2 °C/W on 6-layer board). The package includes dedicated high-current LX pins per phase, separate VDD/VSS power planes, and isolated analog sense inputs for precision regulation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-phase buck converter applications.

Compared with MPQ8633BGLE-10-Z and TPS546D24RQFR, DA9223-XXFT1-A uniquely combines AEC-Q100 Grade 2 qualification, integrated DVC pin, and 66-ball TFBGA packaging optimized for space-constrained automotive ECUs - making it the only option qualified for direct replacement in ADAS domain controllers without derating or redesign.

Availability

DA9223-XXFT1-A is available at Aetrix Electronics and suitable for automotive infotainment, ADAS sensor fusion units, and telematics control modules requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for DA9223-XXFT1-A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog power, and automotive SoCs, with deep expertise in functional safety and vehicle electrification.

The DA9223-XXFT1-A belongs to Renesas' automotive-grade PMIC portfolio, engineered specifically for high-efficiency, high-reliability power delivery to advanced driver-assistance and infotainment processors in harsh vehicular environments.

FAQ

What is the maximum output current capability of the DA9223-XXFT1-A?

The DA9223-XXFT1-A delivers up to 16 A continuous output current using its integrated four-phase synchronous buck architecture. Each phase supports up to 4 A, and the interleaved design minimizes input/output ripple. This rating assumes proper thermal management on a 6-layer PCB with θJA = 34.2 °C/W and ambient temperature ≤105 °C. Derating applies above 70 °C ambient per the published power derating curve.

Does the DA9223-XXFT1-A support remote voltage sensing, and how is it implemented?

Yes, the DA9223-XXFT1-A implements remote sensing via the dedicated FBAP and FBAN pins, forming a differential pair that connects directly to the load's power and ground points. This compensates for IR drop across PCB traces and ensures ±1 % output voltage accuracy at the point of load. For DA9223-XXFT1-A, FBBP and FBBN are no-connect (NC) pins - confirming exclusive use of Buck A's sensing path.

What communication interfaces does the DA9223-XXFT1-A support, and are they pin-compatible with industry standards?

The DA9223-XXFT1-A supports both 2-wire (I²C-compatible) and 4-wire serial interfaces, with SDA/SCL pins compliant with Fast Mode (1 MHz) timing and nCS/SK/SI/SO supporting standard SPI-like protocols. It does not require external level shifters for 1.8 V or 3.3 V I/O domains. The interface is software-configurable via registers and does not mandate pin-compatible hardware changes when migrating from legacy Dialog Semiconductor PMICs.

Is the DA9223-XXFT1-A qualified for automotive applications, and what is its temperature rating?

Yes, the DA9223-XXFT1-A is AEC-Q100 Grade 2 qualified, rated for operation from −40 °C to +105 °C ambient temperature. Its thermal protection includes programmable warning (110–140 °C), critical shutdown (125–155 °C), and power-on reset (135–165 °C) thresholds - all verified per AEC-Q100 stress test requirements for automotive power management ICs.

Can the DA9223-XXFT1-A be used with output voltages above 1.57 V, and what is required?

Yes, the DA9223-XXFT1-A supports output voltages up to 4.3 V using an external resistor divider connected between VOUT and FBAN. The internal DAC sets the base reference (0.3–1.57 V); the divider scales this higher. Resistor values must be selected to maintain FBAN bias current within specification and ensure stability - Renesas provides recommended divider topologies and compensation guidelines in Section 9.1 of the datasheet.