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TPS62147RGXR

High-accuracy 3V-17V 2A synchronous buck converter with DCS-Control in 3x2mm VQFN

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Manufacturer Part：

TPS62147RGXR

Package：

VQFN-HR-11 (3.00 x 2.00 mm)

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Description

Product Overview

The TPS62147RGXR from Texas Instruments is a high-accuracy synchronous step-down DC-DC converter featuring DCS-Control topology. Housed in a compact 3mm x 2mm VQFN-HR (11-pin) package, it operates over a wide 3V to 17V input range and delivers up to 2A of continuous output current with ±1% output voltage accuracy in PWM mode, making it ideal for multi-cell Li-ion battery and 12V intermediate rail applications.

Key Specifications

Input Voltage Range 3V to 17V
Output Voltage Range 0.8V to 12V (adjustable)
Max Output Current 2A
Switching Frequency 1.25MHz / 2.5MHz (selectable)
Quiescent Current 18µA (typical)
Shutdown Current 1µA (typical)
Output Voltage Accuracy ±1% (PWM mode)
Control Mode DCS-Control
Operating Temperature -40°C to 125°C
Package VQFN-HR-11 (3 x 2 mm)

Features

  • DCS-Control topology for fast transient response
  • Auto Efficiency Enhancement (AEE) across load range
  • Forced PWM or PWM/PFM mode selectable
  • 100% duty cycle mode for lowest dropout
  • Adjustable soft-start and precision enable input
  • Power Good output and UVLO adjustable
  • Hiccup overcurrent protection

Applications

  • Industrial PC and video surveillance
  • Multi-cell battery powered POL supplies
  • Factory automation and PLC systems
  • Building automation
  • Standard 12V power rail conversion

The TPS62147 is a high-efficiency synchronous step-down DC-DC converter from Texas Instruments, based on the proprietary DCS-Control topology. It features a wide input voltage range of 3V to 17V, making it suitable for multi-cell lithium-ion battery packs and 12V intermediate power rails. The device delivers up to 2A of continuous output current with an adjustable output voltage from 0.8V to 12V. In PWM mode, it achieves ±1% output voltage accuracy across the specified junction temperature range. The converter automatically enters power-save mode under light-load conditions, maintaining high efficiency across the entire load range. The FSEL pin allows selection of forced PWM switching frequency at either 1.25MHz or 2.5MHz. Housed in a compact 3mm x 2mm VQFN-HR package with 11 pins, it offers excellent thermal performance and minimal board footprint.

The TPS62147 employs DCS-Control (Direct Control with Seamless transition) topology, which combines voltage-mode control with a current-loop emulator for superior transient response. The control loop operates in PWM mode at medium to heavy loads, switching at the selected frequency (1.25MHz or 2.5MHz). Under light-load conditions, the device transitions seamlessly into PFM mode via Auto Efficiency Enhancement (AEE), adjusting switching frequency based on output current and voltage conditions to maximize efficiency. The precision enable input with adjustable UVLO threshold allows user-defined power-up sequencing. The 100% duty cycle mode enables the high-side MOSFET to remain fully on, minimizing dropout voltage for low-input applications. Overcurrent protection uses a hiccup scheme to limit thermal stress during fault conditions.

Pin Name Type Description
1 SW Power Switch node connection to inductor
2 VIN Power Input supply voltage (3V to 17V)
3 GND Ground Device ground and thermal pad
4 EN Input Enable pin with adjustable UVLO; pull high to enable
5 FSEL Input Frequency select: Low = 1.25MHz, High = 2.5MHz in forced PWM
6 FB Input Feedback voltage input for adjustable output; connect to resistor divider
7 SS/TR Input Soft-start and tracking input; connect capacitor to GND
8 PG Output Power Good open-drain output; active high when output is in regulation
9 MODE Input Mode selection: Low = PFM/PWM auto, High = Forced PWM
10 AGND Ground Analog ground reference
11 PGND Ground Power ground for output stage
  • Industrial PCs: Converts 12V rail to 3.3V/5V for processor and peripheral supplies with high efficiency at light loads for always-on standby
  • Video Surveillance Systems: Powers camera modules and image processors from multi-cell battery or 12V adapter with minimal heat generation
  • Factory Automation/PLC: Provides precision 5V or 3.3V logic supply from 12V/24V bus through pre-regulation stage
  • Portable Battery Devices: Steps down 2S-4S Li-ion battery voltage (6V-16.8V) to system rails with 18µA IQ extending runtime
  • Building Automation: Drives sensors and microcontrollers from 12V bus with overcurrent and thermal protection for field reliability
Model Manufacturer Vin Max Iout Key Difference
TPS62148RGXR TI 17V 2A Active output discharge; no hiccup OCP
TPS62150RGTR TI 17V 1A Lower current, same topology
TPS63070RNM TI 16V 2A Buck-boost topology for wider range
LMR33630ADDA TI 36V 3A Higher voltage and current rating
MAX17503ATB+ ADI 60V 2.5A Much higher input voltage range
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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.

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Shipping & Payment

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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.

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Contact Information

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

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