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AOZ53261QI
DrMOS + Smart Power Stages (SPS)
Status: Full Production
The AOZ53261QI 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 the controller for thermal monitoring. The MOSFETs are individually optimized for operation in the synchronous buck configuration. The High-Side MOSFET is optimized to achieve low capacitance and gate charge for fast switching with low-duty cycle operation. The Low-Side MOSFET has ultra-low ON resistance to minimize conduction loss. The compact 5 mm x 5 mm QFN package is optimally chosen and designed to minimize parasitic inductance for minimal EMI signature.
Parametrics
Status | Full Production |
Power Stage Type | DrMOS |
Min Vin (V) | 2.50 |
Max Vin (V) | 25 |
Abs Max Vin (V) | 30 |
Max DC I (A) | 55 |
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 | Full Production |
Power Stage Type | DrMOS |
Min Vin (V) | 2.50 |
Max Vin (V) | 25 |
Abs Max Vin (V) | 30 |
Max DC I (A) | 55 |
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
- 2.5 V to 25 V power supply range
- 4.5 V to 5.5 V driver supply range
- 55 A continuous output current
- Up to 80 A with 10 ms on pulse
- Up to 120 A with 10 μs on pulse - Over Current Protection
- 100 A Peak Current limit (+/-10%)
- 50 A Valley Current limit - Up to 2 MHz switching operation
- 3 V / 5 V PWM and Tri-State input compatible
- Under-voltage LockOut protection
- SMOD# pin control for Diode Emulation/CCM operation
- Standard QFN5x5-31L package