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Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1000-2000 kHz |
| Output 1 | 1 V / 4 A |
| Output 2 | 1.2 V / 4 A |
| Output 3 | 1.8 V / 4 A |
| Output 4 | 1.5 V / 4 A |
| IC revision | 001 |
Description
BD9B400MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. This IC, which is capable of providing current up to 4A, 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
- Storage Devices (HDDs/SSDs)
- Step-down Power Supply for DSPs, FPGAs, Microprocessors, etc./ Distributed Power Supply, Secondary Power Supply
- LCD TVs/ Printers, OA Equipment/ Entertainment Devices
- Laptop PCs/Tablet PCs/Servers
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74437324010 | SPEC | 8 files | WE-LHMI SMT Power Inductor | 1 | 6.2 | 6.5 | 12.5 | 27 | 89 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74437324010 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | Samples |
|---|