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AOZ22557QI

AOZ22557QI

EZBuck™ DC-DC Buck Regulators

The AOZ22557QI is a high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates up to 25V. The device is capable of supplying 15A of continuous output current with an output voltage adjustable down to 0.6V (±1.0%). 

  • Datasheets
  • Markings
  • Reliability Reports
  • Tape & Reel
  • Tape & Reel
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Features
  • Wide input voltage range
    - 6.5V to 25V
  • 15A continuous output current
  • Output voltage adjustable down to 0.6 V (±1.0%)
  • Low RDS(ON) internal NFETs 
    - 11mΩ high-side
    - 4mΩ low-side
  • Internal LDO
  • Constant On-Time with input feed-forward
  • Programmable on-time up to 3.5μs and down to 80ns
  • Programmable Switching Frequency Range up to 1MHz (For 12VIN to 1VOUT)
  • Selectable PFM or forced PWM light load operation
  • Remote Sense
  • Adjustable current limit setting
  • Adjustable soft start
  • Power Good output
  • Integrated bootstrap diode
  • Under-voltage protection and over-voltage protection
  • Cycle-by-cycle current limit
  • Short-circuit protection
  • Thermal shutdown
  • Thermally enhanced 30-pin 4mm × 4mm QFN
Features
  • Wide input voltage range
    - 6.5V to 25V
  • 15A continuous output current
  • Output voltage adjustable down to 0.6 V (±1.0%)
  • Low RDS(ON) internal NFETs 
    - 11mΩ high-side
    - 4mΩ low-side
  • Internal LDO
  • Constant On-Time with input feed-forward
  • Programmable on-time up to 3.5μs and down to 80ns
  • Programmable Switching Frequency Range up to 1MHz (For 12VIN to 1VOUT)
  • Selectable PFM or forced PWM light load operation
  • Remote Sense
  • Adjustable current limit setting
  • Adjustable soft start
  • Power Good output
  • Integrated bootstrap diode
  • Under-voltage protection and over-voltage protection
  • Cycle-by-cycle current limit
  • Short-circuit protection
  • Thermal shutdown
  • Thermally enhanced 30-pin 4mm × 4mm QFN
Documentation
TitleTypeDateFile
AOZ22557QI DatasheetDatasheets2023-04-12PDF
AOZ22557QI MarkingMarkings2023-04-12PDF
AOZ22557QI Reliability ReportReliability Reports2023-04-12PDF
QFN4x4 Tape & ReelTape & Reel2023-04-24PDF
QFN4x4_30L_EP2_S Tape & ReelTape & Reel2024-03-15PDF
Parametrics
Status
Full Production
Min Vin (V)
5.50
Max Vin (V)
25
Max Output I (A)
15
Min VOUT (V)
0.60
Max VOUT (V)
20
Control Mode
COT
Light Load Mode
Yes
Ultrasonic Mode
No
External Comp
No
VCC Supply
Internal
Operating Freq (kHz)
1000
Iq (uA)
400
Soft Start (ms)
External
HS FET RDS(ON) (mΩ)
11
LS FET RDS(ON) (mΩ)
4
Max Duty Cycle
85%
Adj. I Limit
Yes
Remote Sense
Yes
Enable
Yes
PGood
Yes
Forced PWM
Yes
Ripple Reduction
Yes
Low Power Mode
No
Protection
Latch
Digital Interface
NA
Output Discharge
No