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NCV8856A

ON Semiconductor
Part Number NCV8856A
Manufacturer ON Semiconductor
Description Synchronous Buck Controller
Published Oct 16, 2023
Detailed Description Synchronous Buck Controller, Automotive Grade NCV8856A The NCV8856A is an adjustable output, synchronous buck controller...
Datasheet PDF File NCV8856A PDF File

NCV8856A
NCV8856A

Overview
Synchronous Buck Controller, Automotive Grade NCV8856A The NCV8856A is an adjustable output, synchronous buck controller, which drives dual N−channel MOSFETs, ideal for high power applications.
Average current mode control is employed for very fast transient response and tight regulation over wide input voltage and output load ranges.
The IC incorporates an internal fixed 6.
0 V low−dropout linear regulator (LDO), which supplies charge to the switch mode power supply’s (SMPS) bottom gate driver, limiting the power lost to excess gate drive.
The IC is designed for operation over an input voltage range of 4.
5 V to 38 V and is capable of 10 to 1 voltage conversion at 500 kHz.
Additional controller features include undervoltage lockout, overvoltage shutdown, internal soft−start, low quiescent current sleep mode, programmable frequency, SYNC function, average current limiting, cycle−by−cycle overcurrent protection and thermal shutdown.
Features • Average Current Mode Control • 0.
8 V ±2% Reference Voltage • Wide Input Voltage Range of 4.
5 V to 38 V • Operates through Load Dump Conditions • 6.
0 V Low−dropout Linear Regulator (LDO) • Input UVLO (Undervoltage Lockout) • Internal Soft−start • 6.
2 mA Maximum Quiescent Current in Sleep Mode • Adaptive Non−overlap Circuitry • 180 ns Minimum High−side Gate Off−time • Programmable Fixed Frequency – 170 kHz to 500 kHz • External Clock Synchronization up to 600 kHz • Average Current Limiting (ACL) • Cycle−by−Cycle Overcurrent Protection (OCP) • Thermal Shutdown (TSD) • This is a Pb−Free Device Applications • Automotive Systems Requiring High Current • Pre−regulated Supply for Low−voltage SMPSs and LDOs DATA SHEET www.
onsemi.
com TSSOP−20 SUFFIX DB CASE 948E MARKING DIAGRAM NCV88 56A ALYW NCV8856A = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week ORDERING INFORMATION Device Package Shipping† NCV8856ADBR2G TSSOP−20 (Pb−Free) 2500 / Tape & Reel †For information on tape and reel specificat...


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