Renesas RAA2128314GSP#HA0

Overview

RAA2128314GSP#HA0 from Renesas Electronics is a high-voltage triple-output regulator combining a 0.5A buck regulator with two fixed LDO outputs. The device is designed for industrial and automotive-style systems that need a wide 4.5V to 72V input range, an adjustable switching rail, and local 5V and 3.3V linear outputs in one compact IC.

As part of the RAA212831 product family, RAA2128314GSP#HA0 integrates a 350kHz current-mode buck converter, 100mA and 50mA LDO outputs, pulse-skipping light-load operation, high-voltage input capability, and an 8-lead exposed-pad SOIC package. For engineers reviewing the RAA2128314GSP#HA0 datasheet, RAA2128314GSP#HA0 pinout, RAA2128314GSP#HA0 application, or RAA2128314GSP#HA0 equivalent, this device is widely used in industrial controls, factory sensors, automotive auxiliary rails, smart meters, high-voltage embedded modules, and distributed power systems.

Technical Context

In high-voltage embedded systems, RAA2128314GSP#HA0 operates as a front-end regulator accepting inputs from 4.5V to 72V. Its buck regulator supplies up to 0.5A and can be set from 1.25V upward within duty-cycle limits.

The integrated LDO outputs provide fixed 5V and 3.3V rails from a 6V to 12V LDO input range, with 100mA and 50mA output current capability. This arrangement lets one IC create a main rail plus low-current logic or bias rails.

RAA2128314GSP#HA0 is commonly used where 350kHz switching, current-mode control, pulse-skipping light-load efficiency, exposed-pad SOIC assembly, and -40°C to +125°C operation are required from a high-voltage source.

Key Specifications

Pinout & Package

The RAA2128314GSP#HA0 pinout includes high-voltage input, buck switch/output functions, feedback setting, LDO input, 5V and 3.3V LDO outputs, enable/control, and exposed-pad ground.

For PCB design, the buck diode/inductor and input capacitor should be close to the switching path, while LDO capacitors should be placed close to their outputs and the exposed pad should connect to thermal ground copper.

Key Features

• 72V maximum input supports high-voltage rails.
• 0.5A buck output provides the main regulated rail.
• Integrated 5V and 3.3V LDOs reduce component count.
• 350kHz operation balances efficiency and passive size.
• Pulse-skipping improves light-load efficiency.
• SOIC exposed-pad package supports industrial assembly.

Applications

Equivalent & Alternatives

When evaluating a RAA2128314GSP#HA0 equivalent, engineers should compare input-voltage range, buck current, fixed LDO voltages, LDO current, switching frequency, package, and temperature rating.

Compared with LTC3630AEMSE#PBF, RAA2128314GSP#HA0 is more integrated for systems needing a buck rail plus 5V and 3.3V LDO rails. RAA2128314GSP#HA0 vs LM5164DDAR selection depends on whether the design prioritizes dual LDO integration, buck current, input range, and package compatibility.

Quality

RAA2128314GSP#HA0 should be sourced as original Renesas components through traceable supply channels. Quality checks may include SOIC-EP inspection, top-mark validation, solderability testing, and buck/LDO output verification.

Production validation should include high-voltage input operation, 350kHz switching, LDO load regulation, pulse-skipping behavior, thermal performance, and exposed-pad solder quality.

Availability

RAA2128314GSP#HA0 available at Aetrix Electronics and is suitable for industrial, automotive auxiliary, smart metering, sensor, and high-voltage embedded power systems requiring stable regulator supply support.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming package, buck output voltage, LDO loading, input-voltage exposure, lifecycle status, and sourcing continuity helps reduce procurement risk.

Manufacturer

Renesas Electronics is a semiconductor manufacturer supplying microcontrollers, analog and power devices, mixed-signal products, timing devices, and embedded processing solutions for automotive, industrial, infrastructure, and IoT applications.

The RAA212831 product family is a Renesas high-voltage triple-output regulator series integrating a 72V-class buck regulator with fixed 5V and 3.3V LDO outputs for compact industrial power systems.

FAQ

What is RAA2128314GSP#HA0 used for?

RAA2128314GSP#HA0 is used for industrial controls, factory sensors, automotive auxiliary rails, smart meters, and high-voltage embedded modules.

Where can I find the RAA2128314GSP#HA0 datasheet download?

The RAA2128314GSP#HA0 datasheet is available from Renesas and includes electrical characteristics, package data, pin functions, and application guidance.

What outputs does RAA2128314GSP#HA0 provide?

It provides one 0.5A buck output plus fixed 5V and 3.3V LDO outputs.

What should be considered in RAA2128314GSP#HA0 pinout design?

Designers should keep the buck switching path compact, place LDO capacitors close to the pins, and connect the exposed pad to thermal ground copper.

What are common RAA2128314GSP#HA0 equivalent solutions?

Common candidates include LTC3630AEMSE#PBF and LM5164DDAR depending on LDO integration, input range, buck current, and package needs.