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AOZ2151PQI-03

EZBuck™ DC-DC Buck Regulators

Status: Full Production

The AOZ2151PQI-03 is a high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates up to 28V. The device is capable of supplying 4A of continuous output current with an output voltage adjustable down to 0.8V ±1%.

AOZ2151PQI-03 Typ App Drawing
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Parametrics
Status
Full Production
Min Vin (V)
6.50
Max Vin (V)
28
Max Output I (A)
4
Min VOUT (V)
3
Max VOUT (V)
4.50
Package
QFN3x3-18L
Control Mode
COT
Light Load Mode
Yes
Ultrasonic Mode
No
External Comp
No
VCC Supply
Internal
Operating Freq (kHz)
Related to VOUT
Iq (uA)
160
Soft Start (ms)
External
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
No
Forced PWM
Yes
Ripple Reduction
No
Low Power Mode
No
Protection
Latch
Digital Interface
NA
Output Discharge
No
Parametrics
Status
Full Production
Min Vin (V)
6.50
Max Vin (V)
28
Max Output I (A)
4
Min VOUT (V)
3
Max VOUT (V)
4.50
Package
QFN3x3-18L
Control Mode
COT
Light Load Mode
Yes
Ultrasonic Mode
No
External Comp
No
VCC Supply
Internal
Operating Freq (kHz)
Related to VOUT
Iq (uA)
160
Soft Start (ms)
External
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
No
Forced PWM
Yes
Ripple Reduction
No
Low Power Mode
No
Protection
Latch
Digital Interface
NA
Output Discharge
No
Features
  • Wide input voltage range
    • 6.5V to 28V
  • 4A continuous output current
  • Output voltage adjustable down to 0.8V (±1.0%)
  • Low RDS(ON) internal NFETs
    • 28mΩ high-side
    • 28mΩ low-side
  • Constant On-Time with input feed-forward
  • Ceramic capacitor stable
  • Adjustable soft start
  • Selectable PFM light load operation
  • Integrated bootstrap diode
  • Cycle-by-cycle current limit
  • Short-circuit protection
  • Thermal shutdown
  • Thermally enhanced 3mm x 3mm QFN-18L package
Documentation
TitleTypeDateFile
AOZ2151PQI-03 Datasheet
Datasheets2023-03-29PDF
QFN3x3_18L_EP2_S
Package2020-02-27PDF
QFN3x3_18L_EP2_S Tape & Reel
Tape & Reel2023-07-10PDF
Package Details
Package NameDimensionsPackage SpecificationsPackaging Method
QFN3x3_18L_EP2_S 3.0x3.0x0.55PDFTape and Reel