company blog about Mingjiada Supply TI LMR23630FQDRRRQ1 36V, 3A SIMPLE SWITCHER Synchronous Step-Down Converter

Mingjiada Supply TI LMR23630FQDRRRQ1 36V, 3A SIMPLE SWITCHER Synchronous Step-Down Converter

In the design of power supply systems for industrial automation, automotive electronics and smart devices, high-performance, highly stable DC-DC step-down converters with wide input voltage compatibility are core components that ensure the long-term operation of equipment. Shenzhen Mingjiada Electronics Co., Ltd. — with extensive experience in the electronic components supply chain sector — specialises in the spot supply of genuine TI (Texas Instruments) power management ICs, technical support and one-stop supply services. is currently prioritising the stocking of the LMR23630FQDRRRQ1: a SIMPLE SWITCHER® synchronous step-down converter. We provide engineers, end manufacturers and distributors with procurement solutions featuring genuine, authentic components, stable delivery times and excellent value for money, catering to the development and mass production needs of various industrial and automotive power supply applications.

I. Product Overview
The LMR23630FQDRRRQ1 is an industrial-grade and automotive-grade SIMPLE SWITCHER® synchronous buck converter launched by TI (Texas Instruments). Packaged in a WSON-12 package, it is an extremely user-friendly, well-balanced wide-voltage, high-current buck power supply chip. This device eliminates the complex design of traditional buck circuits by integrating a synchronous rectification architecture, thereby eliminating the need for an additional freewheeling diode. This significantly simplifies the peripheral circuitry and reduces PCB footprint, whilst maintaining core advantages such as high efficiency, low power consumption and strong immunity to interference.
The LMR23630FQDRRRQ1 supports an ultra-wide input voltage range of 4V to 36V, delivering a stable continuous load current of 3A, with an output voltage that can be flexibly adjusted between 1V and 28V, making it ideally suited for complex power supply scenarios such as custom industrial power supplies, fluctuating in-vehicle power supplies and battery-powered systems. Thanks to its peak current-mode control architecture, built-in compensation circuit and multiple protection mechanisms, the LMR23630FQDRRRQ1 effectively enhances the stability of power supply systems and reduces R&D and debugging costs, making it the preferred solution for medium- and low-voltage, high-current buck applications.
Mingjiada Electronics – long-term supplier of the TI LMR23630FQDRRRQ1, offering brand-new, genuine stock. Please feel free to enquire and place orders.

II. Product Specifications
Model: LMR23630FQDRRRQ1
Function Type: Buck with synchronous rectification
Input Voltage: 4V to 36V
Output Voltage: 1V to 28V (adjustable)
Output Current: 3A (continuous)
Switching Frequency: 150kHz – 2.425MHz (adjustable) / 400kHz (fixed option)
Quiescent Current (Iq): 75µA (PFM mode, no load)
Shut-down Current: 2µA (ultra-low)
Minimum On-time: 60ns
Synchronous Rectification: Integrated
Number of Output Channels: 1
Topology: Buck
Operating temperature: -40°C to +125°C (TJ)
Package: 12-WFDFN / WSON-12 (3 mm × 3 mm)

III. Key Features (LMR23630FQDRRRQ1)
Input range: 4 V to 36 V
3 A continuous output current
Minimum on-time: 60 ns
Built-in compensation for ease of use
Choice of 400 kHz fixed switching frequency or adjustable switching frequency
Two modes available under light load conditions: Pulse Frequency Modulation (PFM) and Forced Pulse Width Modulation (PWM)
Synchronisation with an external clock frequency
For the PFM option, the quiescent current under no-load conditions is 75 µA
Power-on options
Soft start to pre-biased load
Supports high duty cycle operating modes
Output short-circuit protection with intermittent mode

IV. Main Application Areas of the LMR23630FQDRRRQ1
Thanks to its combined advantages of wide voltage range, high current capacity, low power consumption, high reliability and compact size, the LMR23630FQDRRRQ1 is widely used in various fields such as industrial automation, automotive electronics, smart devices and IoT equipment. The core application scenarios are as follows:
- Industrial automation equipment: PLC controllers, industrial CPU motherboards, HVAC temperature control systems, lift control modules, industrial sensor power supplies and power modules for automated actuators, designed to cope with complex industrial power supply environments.
- Automotive electronics: auxiliary vehicle electrical systems, in-vehicle industrial control terminals, automotive lighting systems, vehicle sensors and low-voltage power supply modules for vehicle bodies, designed to cope with voltage fluctuations in automotive applications and meet automotive-grade reliability requirements.
- Internet of Things (IoT) and smart hardware: Asset tracking devices, outdoor smart monitoring terminals, wireless transmission modules, and portable smart devices; utilising ultra-low power consumption characteristics to suit long-term battery-powered scenarios.
- General-purpose power supply systems: Embedded device power supplies, low-voltage DC voltage regulator modules, secondary step-down circuits for equipment, and auxiliary power supplies for communication equipment; suitable for various 3A high-current regulated power supply scenarios.

Mingjiada Electronics has specialised in the power chip supply chain for many years. We maintain a regular stock of the LMR23630FQDRRRQ1 and support sample testing, small-batch procurement and high-volume mass production. For further product information, technical documentation or to request a quotation, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for more supply details.