onsemi FAN53730 User Manual

3 a constant-on-time buck regulator

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FAN53730 Evaluation Board User's Manual
3 A Constant-On-Time Buck Regulator
EVBUM2925/D
This user manual supports the evaluation kit for the
FAN53730. It should be used in conjunction with the
FAN53730 datasheet.
DESCRIPTION
The FAN53730 evaluation board is a compact circuit
including onsemi's FAN53730, 3 A Constant On Time
(COT) buck regulator in a 12-bump Wafer-Level Chip-Scale
Table 1.
Part Number
Output Voltage
2
FAN53730UCX
I
C Controlled
Input Voltage Range: 2.3 V to 5.5 V
Output Voltage: Programmable from 0.3 V to 2 V
Pin Selectable Defaults
Low Quiescent Current: 12 mA
Internal Soft-Start Limits Input Current During Turn-On
2.5
MHz
Switching
Conduction Operation
© Semiconductor Components Industries, LLC, 2025
January, 2025 − Rev. 0
VSEL
VSET1, VSET2
Frequency
in
Continuous
EVAL BOARD USER'S MANUAL
Package (WLCSP). The device's constant on time topology
provides the fastest transient recovery and optimal efficiency
vs. load due to its variable frequency operation.
The evaluation board provides probe access points to all
key circuit nodes so that electrical characteristics can be
measured.
Features
PG
FCCM
Yes
Yes
Fault Protection (Input Under Voltage, Short Circuit,
Over Current, and Thermal)
Power Good Output (PG)
Forced Continuous Conduction Mode (FCCM)
Audio Reduction Mode Eliminates Audible Tones Due to
Switching
−40 °C to +85 °C Ambient Temperature Range
This is a Pb-Free Device
1
www.onsemi.com
2
I
C Address
Temperature Range
−40 °C to 85 °C
7h'20
Publication Order Number:
EVBUM2925/D

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Summary of Contents for onsemi FAN53730

  • Page 1 EVBUM2925/D This user manual supports the evaluation kit for the Package (WLCSP). The device’s constant on time topology FAN53730. It should be used in conjunction with the provides the fastest transient recovery and optimal efficiency FAN53730 datasheet. vs. load due to its variable frequency operation.
  • Page 2 2. Connect the USB Interface POD as shown in 5. Kelvin connected input and output voltage sense Figure 1. points (VIN_S, VOUT_S) are provided. Test VSEL Header Header Points Header C Header/POD Interface Test Test Test Points Header Point Points Figure 1. Evaluation Board Connection Diagram www.onsemi.com...
  • Page 3: Gui Installation

    Installation a. Run the installer_FAN53730.exe. b. Follow the steps as shown in the dialog box for setup. Figure 2. FAN53730 GUI Installation c. When prompted for Selecting Components, please check the box for PIC POD Driver to install appropriate drivers needed for USB Interface POD.
  • Page 4 Once the installation is complete, FAN53730 GUI will open automatically. f. You can find the installed GUI at this path: C:\Users\*******\onsemi\FAN53730. g. Below is a screen shot of the FAN53730 GUI that is used to communicate via I Figure 5. FAN53730 GUI Interface www.onsemi.com...
  • Page 5: Gui Overview

    Displays the connection status and I C address of the n. DVS Ramp Rate (Dynamic Voltage Scaling) controls the device. time per step (us) during the slewing of the output voltage when a new target voltage is set. The converter will www.onsemi.com...
  • Page 6 Register value can be changed from made from the last set of register settings and then write all this window. the changes together. Discard Changes: This option will revert the changes made by the user to the current register. www.onsemi.com...
  • Page 7 0 bit of Register ID. the LSB Figure 8a. GUI Raw I C Panel Raw I C Panel allows the user to write to or read from the known Slave Address with Hex values of data & Register info. www.onsemi.com...
  • Page 8 .json file. Communication Error: If Slave-Address is not correct or communication with respective Slave Address fails it will give error on Write or Read as shown. Please ensure correct Slave Address is provided and try again. www.onsemi.com...
  • Page 9 EVBUM2925/D SCHEMATIC Figure 8. Figure 9. GUI Register Map Panel www.onsemi.com...
  • Page 10: Bill Of Materials

    100 mil 4x 3-pin L.S. 3 x 2-pin 2 x 2-pin GND RSCL, RSDA Pull-up resistors for CRCW06032k20JNEA Vishay 1/10 W 0603 (Not Populated) 2.2 kW SCL & SDA PGOOD and I CRCW06032k20JNEA Vishay 2.2 kW 1/10 W 0603 pull-ups www.onsemi.com...
  • Page 11: Additional Information

    LIMITATIONS OF LIABILITY: onsemi shall not be liable for any special, consequential, incidental, indirect or punitive damages, including, but not limited to the costs of requalification, delay, loss of profits or goodwill, arising out of or in connection with the board, even if onsemi is advised of the possibility of such damages. In no event shall onsemi’s aggregate liability from any obligation arising out of or in connection with the board, under any theory of liability, exceed the purchase price paid for the board, if any.

This manual is also suitable for:

Evbum2925/dFan53730ucx

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