Converters | FAN23SV70AMPX

20 A Synchronous Buck Regulator

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Overview

The FAN23SV70AMX is a highly efficient synchronous buck regulator. The regulator is capable of operating with an input range from 7 V to 24 V and supporting up to 20 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.
The FAN23SV70A utilizes ON Semiconductor’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. After thermal shutdown is activated, a hysteresis feature restarts the device when normal operating temperature is reached.

  • Servers and Desktop Computers
  • Notebooks, Netbooks
  • Game Consoles
  • Telecommunication
  • Storage
  • Consumer Electronics
  • Industrial
  • VIN Range: 7 V to 24 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: Over 96% Peak
  • Continuous Output Current: 20 A
  • Internal Linear Bias Regulator
  • Accurate Enable facilitates VIN UVLO Functionality
  • PFM Mode for Light-Load Efficiency
  • Excellent Line and Load Transient Response
  • Precision Reference: ±1% Over Temperature
  • 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
  • Thermal Shutdown
  • Internal Boot Diode
  • Halogen and Lead Free, RoHS Compliant

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FAN23SV70AMPX

Lifetime

Pb

A

H

P

PQFN-34

483AM

1

260

REEL

3000

N

Step-Down

Hysteretic

7

24

Adjustable

20

≥90%

1000

$2.0586

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