FAN23SV04T

TinyBuck™ 4 A Integrated Synchronous Buck Regulator for DDR Termination

The FAN23SV04T is a highly efficient, integrated TinyBuck™ 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.

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
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Index Product Product &
Eco Status
Unit Price/
1K Order
Packing Method Convention Package Marking
Convention*
Qualification
Support
Compliance
Certificates
0 FAN23SV04TMPX Full Production
Green as of Mar 2012
$1.07

PQFN 5x5.5 34L -  Details
1.1 x 5.5 x 5.0mm,  TAPE REEL

PDF PQFN 5x5.5 34L  Drawing
Last Update: Jan 2015 PDF PQFN-34L-TB3, Packing Drawing
Last Update: Jun 2013
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&3 (3-Digit Date Code)
&K

Line 2FAN23

Line 3SV04T

ESD (CDM) 2500V

ESD (HBM) 2000V

RƟJA 35°C/W

RƟJC 2.7°C/W

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG

If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
* Click here for further top mark packaging information for FAN23SV04T

This product is general usage and suitable for many different applications.
Application Note Description
AN-FEBFAN23SV04T_LVA PDFUser Guide for FAN23SV04T_LVA Evaluation Board
Last Update : 30-Oct-2014
AN-5074 PDFFAN23SV04T High-Efficiency Tracking Regulator Provides VDDQ Tracking VTT Supply or Programmable Tracking Ratio
Last Update : 28-Jun-2014

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