FAN23SV65AMPX Buck Regulator, Synchronous, 15 A Description The FAN23SV65A is a highly efficient synchronous buck regulator. The regulator is capable of operating with an input range from 7 V to www.onsemi.com 24 V and supporting up to 15 A continuous load currents. The device can operate from a 5 V rail (10%) if V , P , and P are IN VIN VCC connected together to bypass the internal linear regulator. The FAN23SV65A utilizes ON Semiconductors constant on time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. This device utilizes Pulse Frequency Modulation (PFM) mode to maximize PQFN34 lightload efficiency by reducing switching frequency when the CASE 483AM inductor is operating in discontinuous conduction mode at light loads, while clamping the minimum frequency above the audible range with ultrasonic mode. Switching frequency and over current protection can be MARKING DIAGRAM 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 Y&Z&3&K restarts the device when normal operating temperature is reached. FAN23 SV65A Features V Range: 7 V to 24 V Using Internal Linear Regulator for Bias IN V Range: 4.5 V to 5.5 V with V /P /P Connected to Bypass IN IN VIN VCC Internal Regulator Y = Logo High Efficiency: Over to 96% Peak &Z = Assembly Plant Code &3 = Numeric Date Code Continuous Output Current: 15 A &K = Lot Code Internal Linear Bias Regulator FAN23SV65A = Specific Device Code Accurate Enable Facilitates V UVLO Functionality IN PFM Mode for LightLoad Efficiency ORDERING INFORMATION Excellent Line and Load Transient Response See detailed ordering and shipping information on page 2 of Precision Reference: 1% Over Temperature this data sheet. Output Voltage Range: 0.6 to 5.5 V Programmable Frequency: 200 kHz to 1 MHz Programmable SoftStart Low Shutdown Current Adjustable Sourcing Current Limit Internal Boot Diode Thermal Shutdown Halogen and Lead Free, RoHS Compliant Applications Mainstream Notebooks Servers and Desktop Computers Game Consoles Telecommunications Storage Base Stations Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: June, 2018 Rev. 2 FAN23SV65AMPX/DFAN23SV65AMPX ORDERING INFORMATION Operating Part Number Configuration Package Temperature Range Output Current (A) FAN23SV65AMPX PFM with Ultrasonic Mode 40 to 125C 15 34Lead, PQFN, 5.5 mm x 5.0 mm TYPICAL APPLICATION DIAGRAMS V = 19V IN V = 19 V IN R11 C10 10 C9 2.2 F 0.1 F CIN CIN R7 0.1 F 4x10 F 64.9 k PVCC VIN PVIN VCC Ext C3 EN EN 0.1 F R8 V = 1.2 V OUT 10 k BOOT FAN23SV65A I = 0 15 A R7, R8 used for Accurate EN L1 OUT 0.56 H R7, R8 open for Ext EN SW PGOOD ILIM SOFTSTART R2 C4 COUT R5 1.47 k 1.5 k 0.1 F 8x47 F R3 10 k C5 C7 FREQ 100 pF 15 nF FB R9 R6 54.9 k R4 4.99 k AGND PGND 10 k Figure 1. Typical Application with V = 19 V IN V = 5 V IN R11 C10 10 C9 2.2 F 0.1 F CIN CIN 0.1 F 4x10 F PVCC VIN PVIN VCC Ext C3 EN EN 0.1 F V = 1.2 V OUT BOOT FAN23SV65A I = 0 15 A OUT L1 0.56 H SW PGOOD ILIM SOFTSTART R2 C4 COUT R5 1.47 k 0.1 F 8x47 F 1.5 k R3 10 k C5 C7 FREQ 100 pF 15 nF FB R9 R6 R4 54.9 k 4.99 k AGND PGND 10 k Figure 2. Typical Application with V = 5 V IN www.onsemi.com 2