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ROHM BD9B300MUV | Demoboard BD9B300MUV
2.7V to 5.5V Input, 3.0A Integrated MOSFET Buck DC/DC Converter
Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1000-2000 kHz |
| Output 1 | 1.8 V / 3 A |
| IC revision | 004 |
Description
BD9B300MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. This IC, which is capable of providing current up to 3A, features fast transient response by employing constant on-time control system. It offers high oscillating frequency at low inductance. With its original constant on-time control method which operates low consumption at light load, this product is ideal for equipment and devices that demand minimal standby power consumption.
Features
- Synchronous Single DC/DC Converter
- Constant on-time control suitable to Deep-SLLM
- Over Current Protection
- Short Circuit Protection
- Thermal Shutdown Protection
- Under Voltage Lockout Protection
- Adjustable Soft Start
- Power Good Output
- VQFN016V3030 Package (backside heat dissipation)
Typical applications
- Step-down Power Supply for DSPs, FPGAs, Microprocessors, etc.
- Distributed Power Supply, Secondary Power Supply
- Laptop PCs/ Tablet PCs/ Servers / Storage Devices (HDDs/SSDs) / Printers, OA Equipment
- LCD TVs / Entertainment Devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | ISAT,10%(A) | RDC max.(mΩ) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 1 µH, 10.1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1 µH | Performance Rated Current10.1 A | Saturation Current @ 30%11.5 A | DC Resistance12 mΩ | Self Resonant Frequency55 MHz | Operating Voltage80 V | MountSMT | Saturation Current @ 10%5.3 A | DC Resistance15 mΩ | ||||
 | WE-LHMI SMT Power Inductor, 1 µH, 6.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance1 µH | Performance Rated Current6.2 A | Saturation Current @ 30%12.5 A | DC Resistance22 mΩ | Self Resonant Frequency89 MHz | Operating Voltage120 V | MountSMT | Saturation Current @ 10%6.5 A | DC Resistance27 mΩ | ||||
| WE-LHMI SMT Power Inductor, 1 µH, 7.4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance1 µH | Performance Rated Current7.4 A | Saturation Current @ 30%17.7 A | DC Resistance17.5 mΩ | Self Resonant Frequency65 MHz | Operating Voltage120 V | MountSMT | Saturation Current @ 10%9.2 A | DC Resistance20 mΩ | ||||
| WE-LHMI SMT Power Inductor, 1 µH, 8.6 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance1 µH | Performance Rated Current8.6 A | Saturation Current @ 30%14.2 A | DC Resistance13 mΩ | Self Resonant Frequency60 MHz | Operating Voltage120 V | MountSMT | Saturation Current @ 10%7.4 A | DC Resistance14 mΩ | ||||
| WE-MAPI SMT Power Inductor, 1 µH, 10.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1 µH | Performance Rated Current10.25 A | Saturation Current @ 30%12.5 A | DC Resistance11.6 mΩ | Self Resonant Frequency59 MHz | Operating Voltage80 V | MountSMT | Saturation Current @ 10%6.2 A | DC Resistance13.5 mΩ |