ON Semiconductor

FAN2315

15 A Integrated Synchronous Buck Regulator

Topology: Buck
Input Voltage (min.): 4.50 V
Input Voltage (max.): 15.00 V
Switching Frequency (min.): 200.00 kHz
Switching Frequency (max.): 1000.00 kHz
Output 1: 5.50 V / 15.000 A

Original publication on 2015-09-01, revision 1.14

Description

The FAN2315 TinyBuck™ is a highly efficient integrated synchronous buck regulator. The regulator is capable of operating with an input range from 4.5 V to 15 V and supporting up to 15 A load currents.The FAN2315 utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. The device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode at light loads.Switching frequency and over-current protection can be programmed to provide a flexible solution for various applications. Output over-voltage, under-voltage, over-current, and thermal shutdown protections help prevent damage to the device during fault conditions. A hysteresis feature restarts the device when normal operating temperature is reached.

Characteristics

  • VIN Range: 4.5 V to 15 V
  • High Efficiency: Over 96% Peak
  • Continuous Output Current: 15 A
  • PFM Mode for Light-Load Efficiency
  • Output Voltage Range: 0.6 to 5.5 V
  • Programmable Frequency: 200 kHz to 1 MHz
  • Programmable Soft-Start
  • Low Shutdown Current
  • Adjustable Sourcing Current Limit
  • Internal Boot Diode
  • Thermal Shutdown
  • Halogen and Lead Free, RoHS Compliant

Products

  Order Code SPEC Product series L
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Material Version Samples
744355256 PDF WE-HCI SMT Flat Wire High Current Inductor 0.56 20 0.47 30 1.61 100 WE-PERM SMT