TOREX XC9145B50CER-G Evaluation Board User Manual

June 10, 2024
TOREX

TOREX XC9145B50CER-G Evaluation Board

TOREX XC9145B50CER-G Evaluation Board-fig1

XC9145B50CER-G Evaluation Board User Manual

The XC9145B50CER-G Evaluation Board is designed for engineering evaluation purposes only. It is strictly prohibited to use this evaluation board for any other purpose. Torex Semiconductor does not guarantee that all samples will perform in exactly the same way and it is recommended that you always consult our product data sheets for the minimum and maximum specifications. It is important that you evaluate all our products carefully before mass production.

Product Features

  • Ultra-low quiescent current of 400nA
  • 0.8A PWM/PFM Step-up DC/DC converters
  • Input voltage range of 0.65V to 5.5V
  • Operation start voltage of 1.6V
  • Output voltage range of 3.0V to 5.5V (step 0.1V)
  • Switching frequency of 1.2MHz

Quick Start Procedure

The following components are required for the quick start procedure:

  • DC power supply
  • Multimeter (for measuring input voltage, output voltage, output current, and output resistance)

Connect the DC power supply to the input voltage (Vin) and use the multimeter to measure the input voltage (Iin), output voltage (Vout), output current (Iout), and output resistance (Rout). Refer to the schematic diagram below for component placement.

Schematic

Test Results

The following test results were obtained at Ta=25:

  • Output Voltage vs Output Current
  • Efficiency vs Output Current
  • Ripple Voltage vs Output Current
    Refer to Graphs 1-3 in the manual for more information.

CAUTION

ENGINEERING EVALUATION PURPOSES ONLY
This evaluation board is made for the purpose of the product evaluation. It is strictly prohibited to use this evaluation board for any other purpose.
Torex Semiconductor does not guarantee that all samples will perform in exactly the same way and we recommend that you always consult our product data sheets for the minimum and maximum specifications.
It is also important that you evaluate all our products carefully before mass

Evaluation Board Picture

Evaluation Board SPEC

| CONDITON.| MIN.| TYP.| MAX.| UNIT
---|---|---|---|---|---


Vin

| Input Voltage Range| | 0.65| | 5.5| V
Operation Start Voltage| | | | 1.6| V
Vout| Setting Output Voltage| | | 5.0| | V
Iout| Output Current| | Refer to Graph 7| mA
fosc| Switching frequency| | | 1.2| | MHz

XC9145 Series Features

  • Input Voltage Range ・・・・・・・・・・・・・・・・・・0.65V ~ 5.5V
  • Operation Start Voltage ・・・・・・・・・・・・・・・・・・1.6V
  • Output Voltage Range ・・・・・・・・・・・・・・・・・・3.0V ~ 5.5V (step 0.1V)
  • Switching frequency ・・・・・・・・・・・・・・・・・・1.2MHz
  • Ultra Low Power Solution

Quick Start Procedure

TOREX XC9145B50CER-G Evaluation Board-fig3

Schematic
TOREX XC9145B50CER-G Evaluation Board-fig4

BOM
Required Circuit Component

Item| Value| Description| Size [mm]| Part Number| Manufacture
---|---|---|---|---|---
IC| | Step-up DC/DC converter| USP- 6C| XC9145B50CER- G| TOREX
L| 4.7uF| Inductor, Isat=2.1A| 2520| DFE252012F- 4R7M| Murata
CIN1| 10uF| Ceramic cap., 16V/10uF| 1608| GRM188R61C106MA73| Murata
CIN2| 10uF| Ceramic cap., 16V/10uF| 1608| GRM188R61C106MA73| Murata
CL1| 10uF| Ceramic cap., 16V/10uF| 1608| GRM188R61C106MA73| Murata
CL2| 10uF| Ceramic cap., 16V/10uF| 1608| GRM188R61C106MA73| Murata
CL3| | | | |

Additional Demo Board Circuit Components

Item| Value| Description| Size [mm]| Part Number| Manufacture
---|---|---|---|---|---
CBLK| | | | |

PCB Layout

TOREX XC9145B50CER-G Evaluation Board-fig5

Test Result

TOREX XC9145B50CER-G Evaluation Board-fig6

【Appendix】 How to calculate DC/DC Converter or DC/DC Controller.
It can be calculated by the following “WEB DC/DC Simulation”.

TOREX XC9145B50CER-G Evaluation Board-fig9

【Appendix】 How to reduce the spike noise caused by measurement (Probing method with oscilloscope

TOREX XC9145B50CER-G Evaluation Board-fig10

https://www.torexsemi.com/technical-support/tips/reduction-spike-noise/

References

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>

Related Manuals