Power module AOS AOZ5038QI featuring integrated bootstrap diode and under voltage lockout protection
Product Overview
The AOZ5038QI is a high-efficiency synchronous buck DrMOS power module designed for demanding applications. It integrates two asymmetrical MOSFETs and a driver in a compact 5mm x 5mm QFN package, minimizing parasitic inductance for reduced EMI. Optimized for fast switching and low conduction losses, it supports continuous output currents up to 50A and peak currents up to 60A. The module offers versatile control through PWM and FCCM inputs, supporting TTL and Tri-state compatibility, diode emulation, and continuous conduction mode. Key features include an integrated bootstrap diode, under-voltage lockout protection, and a switching frequency up to 2MHz. It is ideal for use in servers, notebook computers, VRMs, point-of-load DC/DC converters, memory and graphic cards, and video gaming consoles.
Product Attributes
- Brand: AOS (Alpha and Omega Semiconductor)
- Package Type: QFN5x5_31L
- Compliance: RoHS, AOS Green Products (reduced Halogens)
- DrMOS Specification Compatibility: Intel DrMOS IMVP8 (VRM13)
Technical Specifications
| Parameter | Rating | Unit |
|---|---|---|
| Power Supply Range (VIN) | 4.5 to 25 | V |
| Driver Supply Range (VCC, PVCC) | 4.5 to 5.5 | V |
| Continuous Output Current | 50 | A |
| Peak Output Current | 60 | A |
| Switching Frequency | Up to 2 | MHz |
| Operating Frequency | 200 kHz to 2 | MHz |
| Control Inputs | TTL and Tri-state compatible (PWM), FCCM | |
| Integrated Components | Bootstrap Schottky diode | |
| Protection Features | Under-Voltage LockOut (UVLO) | |
| Package Dimensions | 5mm x 5mm | |
| Ambient Temperature Range | -40 to +85 | C |
| VCC Under-Voltage Lockout (Rising) | 3.5 to 3.9 | V |
| VCC Under-Voltage Lockout Hysteresis | 500 | mV |
| PWM Input High Threshold (VPWMH) | 4.1 | V |
| PWM Input Low Threshold (VPWML) | 0.7 | V |
| PWM Input Tri-State Threshold Window (VTRI) | 1.65 to 3.50 | V |
| FCCM Enable Threshold (VFCCMH) | 3.80 | V |
| FCCM Disable Threshold (VFCCML) | 1.20 | V |
| PS4 Exit Latency (tPS4_EXIT) | 15 | s |
| PWM Falling to GH Turn-Off (tPDLU) | 18 | ns |
| PWM Raising to GL Turn-Off (tPDLL) | 25 | ns |
| GL Falling to GH Rising Deadtime (tPDHU) | 20 | ns |
| GH/VSWH Falling to GL Rising Deadtime (tPDHL) | 20 | ns |
| Tri-State Shutdown Delay (tTSSHD) | 135 | ns |
| Tri-State Propagation Delay (tPTS) | 35 | ns |
| Low-Side Minimum On-Time (tLGMIN) | 600 | ns |
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