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AOZ53228QI
DrMOS + Smart Power Stages (SPS)
Status: New
The AOZ53228QI is a high efficiency synchronous buck power stage module consisting of two asymmetrical MOSFETs and an integrated driver. It features high accuracy temperature reporting to controller for thermal monitoring. The MOSFETs are individually optimized for operation in the synchronous buck configuration. The HighSide MOSFET is optimized to achieve low capacitance and gate charge for fast switching with low duty cycle operation. Low-Side MOSFET has ultra-low ON resistance to minimize conduction loss. The compact 5mm x 5mm QFN package is optimally chosen and designed to minimize parasitic inductance for minimal EMI signature.
Parametrics
Status | New |
Power Stage Type | DrMOS |
Package | QFN5x5A-31L |
Min Vin (V) | 2.50 |
Max Vin (V) | 18 |
Abs Max Vin (V) | 25 |
Max DC I (A) | 60 |
Max Peak I (A) | 120 |
PWM Input (V) | 3 and 5 |
Tri-State Range (V) | 1.35 - 2.10 |
Max Frequency (MHz) | 2 |
Shutdown Control | DISB# = L |
Enable Diode Emulation Mode | SMOD# = L |
Thermal Flag | Yes |
OCP (A) | 100 |
NCP (A) | 50 |
HSD | No |
Pre-OVP | No |
Parametrics
Status | New |
Power Stage Type | DrMOS |
Package | QFN5x5A-31L |
Min Vin (V) | 2.50 |
Max Vin (V) | 18 |
Abs Max Vin (V) | 25 |
Max DC I (A) | 60 |
Max Peak I (A) | 120 |
PWM Input (V) | 3 and 5 |
Tri-State Range (V) | 1.35 - 2.10 |
Max Frequency (MHz) | 2 |
Shutdown Control | DISB# = L |
Enable Diode Emulation Mode | SMOD# = L |
Thermal Flag | Yes |
OCP (A) | 100 |
NCP (A) | 50 |
HSD | No |
Pre-OVP | No |
Features
- 2.5V to 18V power supply range
- 4.5V to 5.5V driver supply range
- 60A continuous output current
- Up to 80A with 10ms on pulse
- Up to 120A with 1ms on pulse - Over Current Protection
- 100A Over Current limit (±10%) - Up to 2MHz switching operation
- 3V / 5V PWM and Tri-State input compatible
- Under-Voltage LockOut protection
- SMOD# pin control for Diode Emulation / CCM operation
- Standard QFN5x5-31L package
Documentation
| Title | Type | Date | File |
|---|---|---|---|
| AOZ53228QI Datasheet | Datasheets | 2025-09-22 | |
| AOZ53228QI Marking | Markings | 2025-08-25 | |
| AOZ53228QI Reliability Report | Reliability Reports | 2025-07-11 | |
| QFN5x5A_31L_EP3_S | Package | 2025-07-25 | |
| QFN5x5A_31L_EP3_S Tape & Reel | Tape & Reel | 2022-10-06 |
Package Details
| Package Name | Dimensions | Package Specifications | Packaging Method |
|---|---|---|---|
| QFN5x5A_31L_EP3_S | 5.0x5.0x0.75 | Tape and Reel |