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AOZ1237QI-01

Alpha & Omega Semiconductors
Part Number AOZ1237QI-01
Manufacturer Alpha & Omega Semiconductors
Description 28V/8A Synchronous Regulator
Published Nov 5, 2023
Detailed Description AOZ1237QI-01 28V/8A Synchronous EZBuckTM Regulator General Description The AOZ1237-01 is a high-efficiency, easy-to-use...
Datasheet PDF File AOZ1237QI-01 PDF File

AOZ1237QI-01
AOZ1237QI-01

Overview
AOZ1237QI-01 28V/8A Synchronous EZBuckTM Regulator General Description The AOZ1237-01 is a high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates up to 28V.
The device is capable of supplying 8A of continuous output current with an output voltage adjustable down to 0.
8V (±1.
0%).
The AOZ1237-01 integrates an internal linear regulator to generate 5.
3V VCC from input.
If input voltage is lower than 5.
3V, the linear regulator operates at low dropoutput mode, which allows the VCC voltage is equal to input voltage minus the drop-output voltage of the internal linear regulator.
A proprietary constant on-time PWM control with input feed-forward results in ultra-fast transient response while maintaining relatively constant switching frequency over the entire input voltage range.
The switching frequency can be externally programmed up to 1MHz.
The device features multiple protection functions such as VCC under-voltage lockout, cycle-by-cycle current limit, output over-voltage protection, short-circuit protection, as well as thermal shutdown.
The AOZ1237-01 is available in a 4mm x 4mm QFN-23L package and is rated over a -40°C to +85°C ambient temperature range.
Features  Wide input voltage range – 2.
7V to 28V  8A continuous output current  Output voltage adjustable down to 0.
8V (±1.
0%)  Low RDS(ON) internal NFETs – 35mΩ high-side – 12mΩ low-side SRFET™  Constant On-Time with input feed-forward  Programmable frequency up to 1MHz  Selectable PFM light load operation  Ceramic capacitor stable  Adjustable soft start  Power Good output  Integrated bootstrap diode  Cycle-by-cycle current limit  Short-circuit protection  Thermal shutdown  Thermally enhanced 4mm x 4mm QFN-23L package Applications  Portable computers  Compact desktop PCs  Servers  Graphics cards  Set-top boxes  LCD TVs  Cable modems  Point-of-load DC/DC converters  Telecom/Networking/Datacom equipment Rev.
2.
0 October 2015 www.
aosmd.
com Page 1 of 16 Typical Application...


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