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TPS54623RHLR

6A sync buck DC-DC, 4.5-17V in, 0.6V out adj, 500kHz, 16-VQFN 3.5x3.5mm

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Manufacturer Part：

TPS54623RHLR

Package：

16-VQFN (RHL) (3.5 x 3.5 x 0.9 mm)

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Description

Product Overview

The TPS54623RHLR from Texas Instruments is a 6A synchronous step-down converter in a 16-pin VQFN (RHL) 3.5×3.5mm package. Operating from 4.5V to 17V input with integrated 16mOhm/10mOhm MOSFETs, it delivers adjustable output down to 0.6V at up to 6A with 500kHz switching frequency.

Key Specifications

Input Voltage 4.5V ~ 17V
Output Current 6A continuous
Output Voltage 0.6V ~ VIN adjustable
Switching Frequency 500kHz
High-Side RDS(on) 16mOhm (integrated)
Low-Side RDS(on) 10mOhm (integrated)
Package 16-VQFN (RHL) 3.5 x 3.5mm
Operating Temperature -40°C to +85°C

Features

  • Integrated 16mOhm/10mOhm MOSFETs
  • 500kHz fixed switching frequency
  • PWM/Power Save mode for light-load efficiency
  • 0.6V +/-1% reference voltage
  • Adjustable slow-start and power good output
  • Overcurrent and thermal shutdown protection

Applications

  • Point-of-load regulation in servers
  • 5V/12V to 3.3V/1.8V/1.2V conversion
  • Broadband and networking equipment
  • FPGA and DSP core voltage rails
  • Industrial control power supplies

The TPS54623RHLR from Texas Instruments is a 6A synchronous step-down converter with integrated 16mOhm high-side and 10mOhm low-side MOSFETs in a compact 16-pin 3.5×3.5mm VQFN package. Operating from 4.5V to 17V input, it delivers adjustable output voltages down to 0.6V with +/-1% reference accuracy. The 500kHz fixed switching frequency balances efficiency and inductor size. Power Save mode maintains high efficiency at light loads. The device features adjustable slow-start, power good output, and comprehensive protection including overcurrent and thermal shutdown.

The TPS54623 uses a voltage-mode control architecture with fixed 500kHz switching frequency. An error amplifier compares a divided-down output voltage with the 0.6V internal reference, and the resulting error signal is compared with an internal ramp to generate the PWM duty cycle. The integrated MOSFETs switch alternately to convert input to regulated output. In Power Save mode, the device skips pulses at light loads to reduce switching losses. Current limit uses valley current sensing through the low-side MOSFET RDS(on), providing cycle-by-cycle protection.

Pin Name Type Function
1 SS/TR Analog Slow-start / tracking
2 EN Input Enable / UVLO adjust
3 VSENSE Input Output voltage feedback
4-5 GND Power Signal ground
6 COMP Analog Error amplifier output / compensation
7-10 PH Power Switch node (inductor connection)
11-14 VIN Power Input voltage (4.5-17V)
15 PWRGD Output Power good indicator
16 RT/CLK Analog Frequency adjust / external sync
  • 12V to 3.3V/1.8V/1.2V POL regulation in servers
  • 5V to 1.2V FPGA/DSP core voltage rail
  • Networking equipment DC-DC conversion
  • Industrial control board power supply
  • Set-top box and broadband POL supply
Manufacturer Part Number Package Notes
TI TPS54560BDDA SOT-23-6 5A, 4.5-60V, non-sync
TI TPS54620RHLR VQFN-16 6A, 4.5-17V, 700kHz version
Monolithic Power MP8756GD-Z QFN-16 6A, 4.5-17V sync buck
Infineon IR3898MTRPBF PQFN-3×3 6A, 4.5-14V sync buck
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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