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AOZ2231CQI-01
EZBuck™ DC-DC Buck Regulators
Status: Full Production
The AOZ2231CQI-01 is an I2C controllable, high-efficiency, easy-to-use DC-DC synchronous buck regulator capable of operation from a 6.5V to 28V input bus. The ability to control the output voltage using the I2C bus simplifies converter design for microprocessors or SoCs that require dynamic voltage scaling or voltage margining. The device is capable of supplying 4A of continuous output current with an output voltage adjustable from 1.790625V to 0.6V (±2.0%).
Parametrics
Status | Full Production |
Min Vin (V) | 6.50 |
Max Vin (V) | 28 |
Max Output I (A) | 4 |
Min VOUT (V) | 0.60 |
Max VOUT (V) | 1.79 |
Package | QFN4x4-22L |
Control Mode | COT |
Light Load Mode | Yes |
Ultrasonic Mode | No |
External Comp | No |
VCC Supply | Internal |
Operating Freq (kHz) | 400 |
Iq (uA) | 500 |
Soft Start (ms) | 4 |
HS FET RDS(ON) (mΩ) | 28 |
LS FET RDS(ON) (mΩ) | 28 |
Max Duty Cycle | 85% |
Adj. I Limit | No |
Remote Sense | No |
Enable | Yes |
PGood | Yes |
Forced PWM | Yes |
Ripple Reduction | Yes |
Low Power Mode | No |
Protection | Selectable |
Digital Interface | I2C |
Output Discharge | No |
Parametrics
Status | Full Production |
Min Vin (V) | 6.50 |
Max Vin (V) | 28 |
Max Output I (A) | 4 |
Min VOUT (V) | 0.60 |
Max VOUT (V) | 1.79 |
Package | QFN4x4-22L |
Control Mode | COT |
Light Load Mode | Yes |
Ultrasonic Mode | No |
External Comp | No |
VCC Supply | Internal |
Operating Freq (kHz) | 400 |
Iq (uA) | 500 |
Soft Start (ms) | 4 |
HS FET RDS(ON) (mΩ) | 28 |
LS FET RDS(ON) (mΩ) | 28 |
Max Duty Cycle | 85% |
Adj. I Limit | No |
Remote Sense | No |
Enable | Yes |
PGood | Yes |
Forced PWM | Yes |
Ripple Reduction | Yes |
Low Power Mode | No |
Protection | Selectable |
Digital Interface | I2C |
Output Discharge | No |
Features
- Wide input voltage range
- 6.5V to 28V - 4A continuous output current
- Output voltage adjustable from 0.6V to 1.790625V in 9.375mV
- ±2.0% output voltage accuracy for I2C control
- Low RDS(ON) internal NFETs
- 28mΩ high-side
- 28mΩ low-side - Constant On-Time with input feed-forward
- Selectable PFM Light-Load Operation
- Ceramic capacitor stable
- Power Good output
- I2C address programming
- Integrated bootstrap diode
- Cycle-by-cycle current limit
- Short-circuit protection
- Over voltage protection
- Thermal shutdown
- Thermally enhanced 4mm x 4mm QFN-22L package
Documentation
| Title | Type | Date | File |
|---|---|---|---|
| AOZ2231CQI-01 Datasheet | Datasheets | 2020-07-13 | |
| AOZ2231CQI-01 Marking | Markings | 2024-03-13 | |
| QFN4x4_22L_EP2_S | Package | 2024-06-07 | |
| QFN4x4_22L_EP2_S Tape & Reel | Tape & Reel | 2024-04-25 |
Package Details
| Package Name | Dimensions | Package Specifications | Packaging Method |
|---|---|---|---|
| QFN4x4_22L_EP2_S | 4.0x4.0x0.9 | Tape and Reel |