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Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Output 1 | 3 A |
| IC revision | 004 |
Description
BD9B333GWZ is a synchronous buck DC/DC converterwith built-in low on-resistance power MOSFETs. This IC,which is capable of providing current up to 3A, featuresfast transient response by employing constant on-timecontrol system. It offers high oscillating frequency at lowinductance. With its original constant on-time controlmethod which operates low consumption at light load,this product is ideal for equipment and devices thatdemand minimal standby power consumption.BD9B333GWZ achieves the high power density and offera small footprint on the PCB by employing small CSPpackage.
Features
Single Synchronous Buck DC/DC Converter Constant On-time Control Suitable to Deep-SLLM Over Current Protection Short Circuit Protection Over Voltage Protection Thermal Shutdown Protection Under Voltage Lockout Protection Adjustable Soft Start Power Good Output UCSP35L1 Package (Resin Coating)
Typical applications
- Step-down Power Supply for DSPs, FPGAs / Distributed Power Supplies, Secondary Power
- LCD TVs
- Laptop PCs/Tablet PCs/Servers / Storage Devices (HDDs/SSDs) / Printers, OA Equipment
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT1 (A) | ISAT2 (A) | RDC max. (mΩ) | fres (MHz) | Version | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74479299210 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PMCI Power Molded Chip Inductor | 1 | 7.55 | 3.25 | 6.95 | 35 | 60 | High Saturation Current | 7.55 | – | – | SMT | ||
 | 74437336015 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LHMI SMT Power Inductor | 1.5 | – | – | – | 25 | 45 | – | 7.8 | 7.7 | 14.2 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74479299210 | SPEC | |
| 74437336015 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT1 (A) | ISAT2 (A) | RDC max. (mΩ) | fres (MHz) | Version | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | Mount | Samples |
|---|