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AOZ2221QI
EZBuck™ DC-DC Buck Regulators
Status: Full Production
The AOZ2221QI is a high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates up to 36V. The device is capable of supplying 4A of continuous output current with an output voltage adjustable from 0.8V to 16V.
Parametrics
Status | Full Production |
Min Vin (V) | 4.80 |
Max Vin (V) | 36 |
Max Output I (A) | 4 |
Min VOUT (V) | 0.80 |
Max VOUT (V) | 16 |
Package | QFN4x4B-23L |
Control Mode | COT |
Light Load Mode | Yes |
Ultrasonic Mode | No |
External Comp | No |
VCC Supply | Internal |
Operating Freq (kHz) | 1000 |
Iq (uA) | 140 |
Soft Start (ms) | External |
HS FET RDS(ON) (mΩ) | 20 |
LS FET RDS(ON) (mΩ) | 18 |
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 | Auto Restart |
Digital Interface | NA |
Output Discharge | No |
Parametrics
Status | Full Production |
Min Vin (V) | 4.80 |
Max Vin (V) | 36 |
Max Output I (A) | 4 |
Min VOUT (V) | 0.80 |
Max VOUT (V) | 16 |
Package | QFN4x4B-23L |
Control Mode | COT |
Light Load Mode | Yes |
Ultrasonic Mode | No |
External Comp | No |
VCC Supply | Internal |
Operating Freq (kHz) | 1000 |
Iq (uA) | 140 |
Soft Start (ms) | External |
HS FET RDS(ON) (mΩ) | 20 |
LS FET RDS(ON) (mΩ) | 18 |
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 | Auto Restart |
Digital Interface | NA |
Output Discharge | No |
Features
- Wide input voltage range
- 4.8V to 36V Connect BIAS to an external bias (>5V)
- 6.5V to 36V (Connect BIAS to VOUT if VOUT>5V) - 4A continuous output current
- Output voltage adjustable from 0.8V to 16V
- Low RDS(ON) internal NFETs
- 20mΩ high-side
- 18mΩ low-side - Constant On-Time with input feed-forward
- Ceramic capacitor stable
- Adjustable soft start
- Integrated bootstrap diode
- Cycle-by-cycle current limit
- Short-circuit protection
- Thermal shutdown
- Thermally enhanced 4mm x 4mm QFN-23L package
Documentation
| Title | Type | Date | File |
|---|---|---|---|
| AOZ2221QI Datasheet | Datasheets | 2022-10-21 | |
| AOZ2221QI Marking | Markings | 2022-10-21 | |
| AOZ2221QI Reliability Report | Reliability Reports | 2022-10-21 | |
| QFN4x4B_23L_EP2_S | Package | 2024-03-20 | |
| QFN4x4B_23L_EP2_S Tape & Reel | Tape & Reel | 2024-04-25 |
Package Details
| Package Name | Dimensions | Package Specifications | Packaging Method |
|---|---|---|---|
| QFN4x4B_23L_EP2_S | 4.0x4.0x0.9 | Tape and Reel |