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LMZ31520RLG

20A integrated power module, 3-14.5V in, 0.6-3.6V out, 96% eff, 72-BQFN 15x16mm

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Manufacturer Part：

LMZ31520RLG

Package：

72-BQFN Module (16.2 x 15.2 x 5.9mm)

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Description

Product Overview

The LMZ31520RLG from Texas Instruments is a 20A SIMPLE SWITCHER power module with 3.0V to 14.5V input in a 72-BQFN (15x16x5.8mm) package. It integrates a DC/DC converter with power MOSFETs, shielded inductor, and passives into a single low-profile module requiring as few as three external components.

Key Specifications

Input Voltage 3.0V to 14.5V
Output Voltage 0.6V to 3.6V (adjustable)
Output Current 20A max
Switching Frequency 570kHz (selectable)
Efficiency Up to 96%
Power Good Output Yes
Features OCP, OTP, UVLO, Remote On/Off
Package 72-BQFN Module (15 x 16 x 5.8mm)
Operating Temperature -40°C to +85°C

Features

  • Integrated power MOSFETs, shielded inductor, and passives
  • Only 3 external components required
  • Adjustable output: 0.6V to 3.6V
  • Up to 96% efficiency
  • Remote on/off control
  • Power good indicator
  • Overcurrent protection (OCP)
    • Over-temperature protection (OTP)
  • Undervoltage lockout (UVLO)
  • Selectable switching frequency
  • Auto-skip Eco-mode or FCCM operation

Applications

  • FPGA and processor power supplies
  • Telecom and networking equipment
  • Server and storage systems
  • Industrial control power
  • Test and measurement instruments

The LMZ31520RLG from Texas Instruments is an easy-to-use integrated power module combining a 20A DC/DC converter with power MOSFETs, a shielded inductor, and passives in a low-profile QFN package. Accepting 3.0V to 14.5V input and providing adjustable output from 0.6V to 3.6V at up to 20A, it requires as few as three external components. The module eliminates loop compensation and magnetics selection, featuring up to 96% efficiency with comprehensive protection including OCP, OTP, and UVLO.

The LMZ31520 uses a voltage-mode buck converter topology with integrated power MOSFETs and a shielded inductor. The control IC implements voltage-mode control with an internal compensator, eliminating the need for external loop compensation. The output voltage is set by an external resistor divider connected to the VADJ pin. The module includes a 5V LDO (V5V) for internal circuitry, selectable switching frequency, and configurable slow-start time. Auto-skip Eco-mode reduces switching losses at light loads, while FCCM mode maintains continuous conduction for lower output ripple.

Pin Name Type Function
2 VIN Power Input bias voltage
3 SS_SEL Input Slow-start select / FCCM-Eco mode
8 INH Input Enable/inhibit control
10 VOUT Power Output voltage (multiple pins)
13 VADJ Input Output voltage adjust
14 SENSE+ Input Remote sense connection
15 PVIN Power Power stage input voltage
18 PWRGD_PU Output Power good pull-up
19 PWRGD Output Power good indicator
61 V5V Output 5V internal regulator
  • FPGA core and I/O rail power (0.9V-3.3V at 20A)
  • Telecom line card point-of-load DC-DC conversion
  • Server CPU and memory rail power supplies
  • Industrial PLC and motor controller power modules
  • Test equipment high-current programmable rails
Manufacturer Part Number Package Notes
TI LMZ31506RLGT 72-BQFN 6A version, smaller package
TI LMZ31503RLGT 56-BQFN 3A version, compact form
TDK FS1412-2000-R6 BGA 20A, 4.5-14V input module
Vicor PI3525-00-LGIZ BGA 25A zero-voltage switched module
Murata MY2SGA03020A1R0 BGA 20A, 4.5-14.5V input module
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Contact Us

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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  • Economy Logistics: Air freight and sea freight for large-volume cargo
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  • Air Freight: 7 – 12 working days
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

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    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

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5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
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  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

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  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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