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Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Output 1 | 3 A |
| IC revision | 004 |
Description
ROHM’s high efficiency switching regulator,BD9B331GWZ, is a step-down converter designed toproduce a low voltage output of 0.6V~3.3V from a2.7V~5.5V power supply line. It offers high efficiency inall load ranges by automatic PFM/PWM adjustment. Itemploys an On time control system to provide fastertransient response to sudden change in load.
Features
Fast transient response with On time control system. High efficiency for all load range with synchronousrectifier (Nch/Nch FET) and adaptive PFM/PWMsystem. Adjustable Soft-start function. Thermal and UVLO protection. Short-circuit current protection with pulse count Shutdown function.
Typical applications
- Secondary power supply
- Amusement
- Laptop PC / Tablet PC / Server / LCD TV, Storage Devices (HDD / SSD) / Printer
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 | 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 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74479299210 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT1 (A) | ISAT2 (A) | RDC max. (mΩ) | fres (MHz) | Version | Samples |
|---|