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FAN23SV04T

Fairchild Semiconductor
Part Number FAN23SV04T
Manufacturer Fairchild Semiconductor
Description 4A Synchronous Buck Regulator
Published Dec 17, 2019
Detailed Description FAN23SV04T — 4 A Synchronous Buck Regulator for DDR Termination September 2015 FAN23SV04T 4 A Synchronous Buck Regulat...
Datasheet PDF File FAN23SV04T PDF File

FAN23SV04T
FAN23SV04T

Overview
FAN23SV04T — 4 A Synchronous Buck Regulator for DDR Termination September 2015 FAN23SV04T 4 A Synchronous Buck Regulator for DDR Termination Features  VIN Range: 7 V to 18 V Using Internal Linear Regulator for Bias  VIN Range: 4.
5 V to 5.
5 V with VIN/PVIN/PVCC Connected to Bypass Internal Regulator  High Efficiency  Continuous Output Current: 4 A  Internal Linear Bias Regulator  Internal VDDQ Resistor Divider  Excellent Line and Load Transient Response  Output Voltage Range: 0.
5 to 1.
5 V  Programmable Frequency: 200 kHz to 1.
5 MHz  Programmable Soft-Start  Low Shutdown Current  Adjustable Sourcing Current Limit  Internal Boot Diode  Thermal Shutdown  Halogen and Lead Free, RoHS Compliant Applications  Bus Termination  Servers and Desktop Computers  NVDC Notebooks, Netbooks  Game Consoles Description The FAN23SV04T is a highly efficient, synchronous buck regulator for use in tracking applications, such as DDR termination rails.
The VDDQ input includes an internal 2:1 resistive voltage divider to reduce total circuit size and component count.
The regulator operates with an input range from 7 V to 18 V and supports up to 4 A load currents.
The device can operate from a 5 V rail (±10%) if VIN, PVIN, and PVCC are connected together to bypass the internal linear regulator.
This device utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency.
Switching frequency and sourcing over-current protection can be programmed to provide a flexible solution for various applications.
Output over-current, and thermal shutdown protections help prevent damage during fault conditions.
A hysteresis feature restarts the device when normal operating temperature is reached.
Ordering Information Part Number Configuration Operating Output Temperature Range Current Package FAN23SV04TMPX PWM Mode with VDDQ Tracking Input -40 to 125°C 4 A 34-Lead, PQFN, 5.
5 mm x 5.
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