FAN23SV04TAMPX: 4 A Synchronous Buck Regulator for DDR Termination
Description: The FAN23SV04TAMPX is a highly efficient, integrat...
The FAN23SV04TAMPX is a highly efficient, integrated 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.
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
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
Low Shutdown Current
Adjustable Sourcing Current Limit
Internal Boot Diode
Halogen and Lead Free, RoHS Compliant
Servers, Desktop Computers
Technical Documentation & Design Resources
Evaluation/Development Tool Information
Availability and Samples
Compliance: Pb-free Halide free
Description: 4 A Synchronous Buck Regulator for DDR Termination
Package Type: PQFN-34
Package Case Outline: 483AM
Container Type: REEL
Container Qty: 3000
Market Leadtime (weeks):13 to 16
VCC Min (V):
VCC Max (V):
VO Typ (V):
IO Typ (A):
fSW Typ (kHz):