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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) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PMCI Power Molded Chip Inductor, 1 µH, 6.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | Inductance1 µH | Rated Current6.2 A | Saturation Current 13.25 A | Saturation Current 26.95 A | DC Resistance35 mΩ | Self Resonant Frequency60 MHz | Performance Rated Current6.2 A | Saturation Current @ 10%3.25 A | Saturation Current @ 30%6.95 A | MountSMT | ||||
 | WE-LHMI SMT Power Inductor, 1.5 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance1.5 µH | – | – | – | DC Resistance25 mΩ | Self Resonant Frequency45 MHz | Performance Rated Current7.8 A | Saturation Current @ 10%7.7 A | Saturation Current @ 30%14.2 A | MountSMT |