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ROHM BD9B300MUV | Demoboard BD9B300MUV-E2EVK-101
Evaluation Board:Synchronous Buck Converter Integrated FET
Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1000-2000 kHz |
| Output 1 | 3.3 V / 3 A |
Description
This evaluation board has been developed for ROHM’s synchronous buck DC/DC converter customers evaluatingBD9B300MUV. While accepting a power supply of 2.7-5.5V, an output of 3.3V can be produced. The IC has internal 35mΩhigh-side P-channel MOSFET and 35mΩ low-side N-channel MOSFET and a synchronization frequency is of 1MHz (FREQ pinis connected to VIN) or 2MHz (FREQ pin is connected to ground). A fixed Soft Start circuit prevents in-rush current during startupalong with UVLO (Under Voltage Lockout) and TSD (Thermal Shutdown) protection circuits. An EN pin allows for simpleON/OFF control of the IC to reduce standby current consumption. A MODE pin allows the user to select fixed frequency PWMmode or enables the Deep-SLLM control and the mode is automatically switched between the Deep-SLLM control and fixedfrequency PWM mode.
Typical applications
- LCD TVs
- Laptop PCs/Tablet PCs/Servers
- Step-down Power Supply for DSPs, FPGAs, Microprocessors, etc…
- Entertainment Devices
- Distributed Power Supply, Secondary Power Supply
- Printers, OA Equipment
- Storage Devices (HDDs/SSDs)
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Power Inductor, 1.5 µH, 11.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance1.5 µH | Performance Rated Current11.3 A | Saturation Current @ 10%9.7 A | Saturation Current @ 30%18.7 A | DC Resistance9 mΩ | Self Resonant Frequency35 MHz | MountSMT |