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AOZ2388QI

EZBuck™ DC-DC Buck Regulators

Status: Full Production

The AOZ2388QI is a high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates up to 25V. The device is capable of supplying 25A of continuous output current with an output voltage adjustable down to 0.6V (±1.0%). 

AOZ2388QI Typ App Drawing
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Parametrics
Status
Full Production
Min Vin (V)
5.50
Max Vin (V)
25
Max Output I (A)
25
Min VOUT (V)
0.60
Max VOUT (V)
20
Package
QFN5x5-28L
Control Mode
COT
Light Load Mode
Yes
Ultrasonic Mode
No
External Comp
No
VCC Supply
Internal
Operating Freq (kHz)
1000
Iq (uA)
650
Soft Start (ms)
External
HS FET RDS(ON) (mΩ)
4
LS FET RDS(ON) (mΩ)
1.60
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
Parametrics
Status
Full Production
Min Vin (V)
5.50
Max Vin (V)
25
Max Output I (A)
25
Min VOUT (V)
0.60
Max VOUT (V)
20
Package
QFN5x5-28L
Control Mode
COT
Light Load Mode
Yes
Ultrasonic Mode
No
External Comp
No
VCC Supply
Internal
Operating Freq (kHz)
1000
Iq (uA)
650
Soft Start (ms)
External
HS FET RDS(ON) (mΩ)
4
LS FET RDS(ON) (mΩ)
1.60
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
Features
  • Wide input voltage range
    - 5.5V to 25V if internal LDO supply VCC
    - 4V to 25V if external VCC supply
  • 25A continuous output current
  • Output voltage adjustable from 0.6 V ±1.0%
  • Low RDS(ON) internal NFETs
    - 4mΩ high-side
    - 1.6mΩ low-side
  • Internal LDO
  • Constant On-Time with input feed-forward
  • Programmable on-time up to 3.5μs and down to 80 ns
  • Programmable switching frequency range: 1 MHz (for 12 VIN to 1 VOUT)
  • Selectable PFM or forced PWM light load operation
  • Ceramic capacitor stable
  • 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 5 mm x 5 mm QFN-28L package
Documentation
TitleTypeDateFile
AOZ2388QI Datasheet
Datasheets2023-04-12PDF
AOZ2388QI Marking
Markings2023-04-12PDF
AOZ2388QI Reliability Report
Reliability Reports2023-04-12PDF
QFN5x5_28L_EP3_S
Package2021-04-12PDF
QFN5x5_28L_EP3_S Tape & Reel
Tape & Reel2024-03-15PDF
Package Details
Package NameDimensionsPackage SpecificationsPackaging Method
QFN5x5_28L_EP3_S 5.0x5.0x0.9PDFTape and Reel