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AOZ1281DI
EZBuck™ DC-DC Buck Regulators
The AOZ1281DI is a 26V input, 1.8A non-synchronous buck regulator in a thermally-enhanced DFN2x2 package. It offers a wide input range from 3V to 26V, and the output voltage is adjustable down to 0.8V. It features a fixed 1.5MHz PWM switching frequency enabling the use of a small inductor size.
- Datasheets
- Markings
- Package
- Tape & Reel
Features
- 3V to 26V operating input voltage range
- 240mΩ High Side Switch
- 1.8A continuous output current
- Output voltage adjustable down to 0.8V
- Up to 95 % efficiency
- Fixed 1.5MHz PWM operation
- No external compensation is needed
- Integrated soft start
- Cycle-by-cycle current limit
- Short-circuit protection
- Thermal shutdown
- Thermally-enhanced DFN2x2-8L package
Features
- 3V to 26V operating input voltage range
- 240mΩ High Side Switch
- 1.8A continuous output current
- Output voltage adjustable down to 0.8V
- Up to 95 % efficiency
- Fixed 1.5MHz PWM operation
- No external compensation is needed
- Integrated soft start
- Cycle-by-cycle current limit
- Short-circuit protection
- Thermal shutdown
- Thermally-enhanced DFN2x2-8L package
Documentation
| Title | Type | Date | File |
|---|---|---|---|
| AOZ1281DI Datasheet | Datasheets | 2021-02-17 | |
| AOZ1281DI Marking | Markings | 2023-09-08 | |
| DFN2x2_8L_EP1_S | Package | 2020-02-27 | |
| DFN2x2_8L_EP1_S Tape & Reel | Tape & Reel | 2024-03-14 |
Parametrics
Status | Full Production |
Min Vin (V) | 3 |
Max Vin (V) | 26 |
Max Output I (A) | 1.80 |
Min VOUT (V) | 0.80 |
Max VOUT (V) | 23 |
Package | DFN2x2-8L |
Control Mode | PWM |
Light Load Mode | Yes |
Ultrasonic Mode | No |
External Comp | No |
VCC Supply | Internal |
Operating Freq (kHz) | 1500 |
Iq (uA) | 1000 |
Soft Start (ms) | 0.4 |
HS FET RDS(ON) (mΩ) | 240 |
Max Duty Cycle | 87% |
Adj. I Limit | No |
Remote Sense | No |
Enable | Yes |
PGood | No |
Forced PWM | No |
Ripple Reduction | No |
Low Power Mode | No |
Protection | Auto Restart |
Digital Interface | NA |
Output Discharge | No |
Package Details
| Package Name | Dimensions | Package Specifications | Packaging Method |
|---|---|---|---|
| DFN2x2_8_EP1_S | 2.0x2.0x0.75 | Tape and Reel |
Tools
- EZBuck Design Tool (xls)