Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Rohm Manuals
  4. Media Converter
  5. BD9F500QUZ-EVK-001
  6. User manual

Rohm BD9F500QUZ-EVK-001 User Manual

1ch buck converter with integrated fet
Hide thumbs

Advertisement

Quick Links

Download this manual
Switching Regulator Series
1ch Buck Converter with Integrated FET
BD9F500QUZ EVK
BD9F500QUZ-EVK-001 (12V→1V, 5A)
Introduction
This user's guide describes the steps required to operate the EVK of BD9F500QUZ. This document includes description
of peripheral components, operating instructions and reference data.
Description
BD9F500QUZ-EVK-001 uses BD9F500QUZ to output 1V from a 12V input voltage. The input voltage of the
BD9F500QUZ is from 4.5V to 36V and the output voltage is configurable from 0.6V to 14V with external resistors.
The operating frequency is selectable between 600 kHz, 1 MHz and 2.2 MHz. It is a fixed on-time controlled DC/DC
converter that provides fast transient response. The light-load mode control improves efficiency at light loads which
makes it ideal for devices that require less standby power. Built-in functions include variable soft start function which
prevents inrush current at startup, UVLO (Under Voltage Lock Out), TSD (Thermal Shutdown Detection), OCP (Over
Current Protection) and SCP (Short Circuit Protection).
Application
Step-down power supplies for SoCs, FPGAs, microprocessors, etc.
Printer (MFP / LBP / IJP / POS)
Office Equipment
Laptop PC
USB Type-C Applications
EVK Operating Limits
Parameter
Input Voltage
Output Voltage
Maximum Output Current
Switching Frequency
Maximum Efficiency
UVLO Threshold Voltage
UVLO Hysteresis Voltage
© 2020 ROHM Co., Ltd.
Min
Typ
Max
4.5
12.0
36.0
1.0
5.0
1
81
4.2
200
1/10
User's Guide
Units
Conditions
V
V
A
MHz
%
Io = 2A
V
VIN sweep up
mV
No. 63UG090E Rev.001
2020.12

Advertisement

loading
Need help?

Need help?

Do you have a question about the BD9F500QUZ-EVK-001 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Rohm BD9F500QUZ-EVK-001

Summary of Contents for Rohm BD9F500QUZ-EVK-001

  • Page 1 Description BD9F500QUZ-EVK-001 uses BD9F500QUZ to output 1V from a 12V input voltage. The input voltage of the BD9F500QUZ is from 4.5V to 36V and the output voltage is configurable from 0.6V to 14V with external resistors.
  • Page 2 BD9F500QUZ-EVK-001 User’s Guide EVK Overview Figure 1. BD9F500QUZ-EVK-001 (Top View) Figure 2. BD9F500QUZ-EVK-001 (Bottom View) EVK Schematic Figure 3. BD9F500QUZ-EVK-001 Schematic © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 2/10 2020.12...

  • Page 3: Operating Procedures

    VREG OPEN Fixed PWM OPEN Light Load (LLM) OPEN OPEN Fixed PWM 600 kHz (Typ) VREG Light Load (LLM) OPEN VREG Fixed PWM VREG VREG 2.2 MHz (Typ) Fixed PWM © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 3/10 2020.12...

  • Page 4: Parts List

    No mount 1005 Resistor 0Ω Jumper MCR01MZPJ000 ROHM 1005 Resistor 100kΩ 50V, ±1%, 1/16W MCR01MZPF1003 ROHM 1005 Resistor No mount 1005 Resistor No mount 1005 Resistor 0Ω Jumper MCR01MZPJ000 ROHM 1005 © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 4/10 2020.12...
  • Page 5 Resistor 0Ω Jumper MCR01MZPJ000 ROHM 1005 Resistor No mount 1005 1x3 Header Connection, SW_EN Pitch 2.54 VIN, VIN_S, VOUT, VOUT_S, GND, Test Pin ST-2-2 MAC8 GND_S, EN, SW, PGD, V_EXT © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 5/10 2020.12...
  • Page 6 1oz (35μm) *Middle Layers Figure 4. Top Layer Layout Figure 5. Middle1 Layer Layout (Top View) (Top View) Figure 6. Middle2 Layer Layout Figure 7. Bottom Layer Layout (Top View) (Top View) © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 6/10 2020.12...
  • Page 7 Figure 8. Current Consumption vs VIN Figure 9. Shutdown Current vs VIN = 0mA) (EN=GND) 1.04 1.02 0.98 0.96 VIN [V] Figure 10. Line Regulation Figure 11. Load Regulation = 0mA) © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 7/10 2020.12...
  • Page 8 10 15 20 25 30 35 0.001 0.01 VIN [V] Figure 12. Switching Frequency vs VIN Figure 13. Efficiency vs Load Current = 1A) Figure 15. Frequency Response Figure 14. Load Response = 5A) © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 8/10 2020.12...
  • Page 9 BD9F500QUZ-EVK-001 User’s Guide Reference Application Curves – Cont’d Figure 16. Start Up Waveform Figure 17. Shutdown Waveform = 1A) = 1A) © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 9/10 2020.12...

  • Page 10: Revision History

    BD9F500QUZ-EVK-001 User’s Guide Revision History Revision Date Description Number 2020.12.17 Initial release © 2020 ROHM Co., Ltd. No. 63UG090E Rev.001 10/10 2020.12...
  • Page 11 Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information.

This manual is also suitable for:

Switching regulator series