ON Semiconductor

FAN65008B
Demoboard FAN65005B-GEVB

Synchronous PWM Buck Regulator, High Performance, Voltage Mode, 65 V, 8 A

Topology: Buck
Input Voltage (min.): 4.50 V
Input Voltage (max.): 65.00 V
Switching Frequency (min.): 100.00 kHz
Switching Frequency (max.): 1000.00 kHz
Output 1: 5.00 V / 8.000 A

Original publication on 2018-01-10, revision A

Description

FAN65005A is a wide VIN highly efficient synchronous buckregulator, with integrated high side and low side power MOSFETs.The device incorporates a fixed frequency voltage mode PWMcontroller supporting a wide voltage range from 4.5 V to 65 V and canhandle continuous currents up to 8 A.FAN65005A includes a 0.67% accurate reference voltage to achievetight regulation. The switching frequency can be programmed from100 kHz to 1 MHz. To improve efficiency at light load condition, thedevice can be set to discontinuous conduction mode with pulseskipping operation.FAN65005A has dual LDOs to minimize power loss and integratedcurrent sense circuit that provides cycle-by-cycle current limiting.This single phase buck regulator offers complete protection featuresincluding Over current protection, Thermal shutdown, Under-voltagelockout, Over voltage protection, Under voltage protection andShort-circuit protection.FAN65005A uses ON Semiconductor’s high performancePOWERTRENCH® MOSFETs that reduces ringing in switchingapplications. FAN65005A integrates the controller, driver, and powerMOSFETs into a thermally enhanced, compact 6 × 6 mm PQFNpackage. With an integrated approach, the complete DC/DC converteris optimized from the controller and driver to MOSFET switchingperformance, delivering a high power density solution.

Characteristics

  • Wide Input Voltage Range: 4.5 V to 65 V • Supports wide range of applications • Switching Frequency: 100 kHz to 1 MHz • Allows for optimization between size, efficiency, and maximum duty cycle • 0.6 V Reference Voltage with 0.67% Accuracy • Maintain voltage accuracy • Selectable CCM PWM Mode or PFM Mode for Light Loads • Best Efficiency at heavy loads and also at light loads • Over Current Protection, Thermal Shutdown, Over Voltage Protection, Under Voltage Protection and Short−circuit Protection • Fully protected against voltage, current and temperature faults • Dual LDOs for Single Supply Operation and to Reduce Power Loss • Improves efficiency by reducing power loss • External Compensation for Wide Operation Range • Adjustable Soft−Start & Pre−Bias Startup • Enable Function with Adjustable Input Voltage Under−Voltage−Lock−Out (UVLO) • Power Good Indicator

Products

  Order Code SPEC Product series RDC
(mΩ)
L
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
Montageart C
(nF)
Tol. C VR
(V (DC))
Bauform H
(mm)
DF
(%)
Keramiktyp Technische Artikelnummer Samples
74439370150 PDF WE-XHMI SMT Power Inductor 11.3 15 10 34 7 SMT
885012206018 PDF WCAP-CSGP MLCCs 10 V(DC) 47 ±10% 10 0603 0.8 5 X7R Class II X7R0603473K010DFCT10000