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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Output 1 | 5 V / 5 A |
Description
The RT6255A is a high-efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 5A output current from a 4.5V to 18V input supply.The RT6255A adopts ACOT architecture to allow the transient response to be improved and keep in constant frequency. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection and thermal shutdown
Features
- 4.5V to 18V Input Voltage Range
- 5A Output Current
- Constant-on-Time Mode to Enables Fast TransientResponse
- Low Output Ripple and Allows Ceramic OutputCapacitor
- 500kHz Switching Frequency
- High Efficient Internal Power MOSFET SwitchOptimized for Lower Duty Cycle Applications
- Integrated 45mΩ/23mΩMOSFETs
- Adjustable Output Voltage from 0.6V to 5V
- Internal Soft-Start (1.5ms typ.)
- Built-In UVP/OTP
- Power Good Indicator (90%)
- Input Under Voltage Lockout
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Material | LR (µH) | fres (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443340470 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet 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-HCC SMT High Current Cube Inductor | 4.7 | 8.9 | 7.7 | 9.5 | 13.5 | Ferrite | 3.5 | 45 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443340470 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet 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) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Material | LR (µH) | fres (MHz) | Samples |
|---|