NCP4306 Synchronous Rectification Drivers

onsemi NCP4306 Synchronous Rectification Drivers are high‑performance secondary‑side devices designed to optimize efficiency in switch‑mode power supplies (SMPS). The onsemi NCP4306 supports a wide range of power‑conversion topologies (including DCM/CCM flyback, quasi‑resonant flyback, forward, and resonant LLC) thanks to the versatile control architecture and robust drive capability. These devices provide precise true secondary‑side zero‑current detection and offer extremely low turn‑off delay (typically 15ns), enabling maximum MOSFET conduction time and improved overall system efficiency. The combination of adjustable or fixed minimum on‑time and off‑time blanking allows designers to mitigate PCB‑induced ringing and parasitic effects for stable, noise‑free SR operation.

Results: 12
Select Image Part # Mfr. Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Topology Number of Outputs Switching Frequency Input Voltage Output Voltage Output Current Minimum Operating Temperature Maximum Operating Temperature Mounting Style Package / Case Packaging
onsemi Switching Controllers SECONDARY SIDE SYNCH RONOU 6,594In Stock
Cut Tape
$1.50
$0.998
$0.919
$0.834
Reel
$0.75
Min.: 1
Mult.: 1
: 4,000
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT DFN-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS 3,976In Stock
Cut Tape
$1.43
$1.02
$0.92
$0.811
Reel
$0.671
Min.: 1
Mult.: 1
Max.: 2,500
: 2,500
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT SOIC-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS RECTIFICATION DRIVER FOR HIGH EFFICIENCY SMPS TOPOLOGIES - IPT OPTION FOR 3,088In Stock
Cut Tape
$3.90
$2.91
$2.66
$2.39
$2.26
Reel
$2.26
Min.: 1
Mult.: 1
Max.: 276
: 4,000
1 Output 1 MHz 35 V 7 A - 40 C + 125 C SMD/SMT DFN-8 Reel, Cut Tape
onsemi Switching Controllers SECONDARY SIDE SYNCH RONOU 3,891In Stock
Cut Tape
$1.56
$1.11
$1.00
$0.884
Reel
$0.723
Min.: 1
Mult.: 1
: 3,000
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT DFN-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS 6,012In Stock
Cut Tape
$1.12
$0.811
$0.736
$0.651
Reel
$0.56
Min.: 1
Mult.: 1
Max.: 2,500
: 2,500
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT SOIC-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS 7,203In Stock
5,000Expected 2027-04-02
Cut Tape
$1.18
$0.844
$0.76
$0.667
Reel
$0.56
Min.: 1
Mult.: 1
: 2,500
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT SOIC-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCH RONOU 1,504In Stock
Cut Tape
$1.58
$1.16
$1.06
$0.94
Reel
$0.811
Min.: 1
Mult.: 1
: 3,000
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT DFN-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCH RONOU 1,410In Stock
Cut Tape
$1.43
$1.05
$0.953
$0.85
Reel
$0.69
Min.: 1
Mult.: 1
: 4,000
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT DFN-8 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS 2,479In Stock
Cut Tape
$0.936
$0.665
$0.598
$0.521
Reel
$0.406
Min.: 1
Mult.: 1
: 3,000
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT TSOP-6 Reel, Cut Tape, MouseReel
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS RECTIFICATION DRIVER FOR HIGH EFFICIENCY SMPS TOPOLOGIES 2,545In Stock
Cut Tape
$0.936
$0.665
$0.598
$0.521
Reel
$0.41
Min.: 1
Mult.: 1
Max.: 3,000
: 3,000
Flyback 1 Output 1 MHz 5 V 7 A - 40 C + 125 C SMD/SMT TSOP-6 Reel, Cut Tape
onsemi Switching Controllers SECONDARY SIDE SYNCHRONOUS 3,729In Stock
Cut Tape
$0.936
$0.665
$0.598
$0.521
Reel
$0.422
Min.: 1
Mult.: 1
: 3,000
Flyback, Forward, Half Bridge 1 Output 1 MHz 10 V 7 A - 40 C + 125 C SMD/SMT TSOP-6 Reel, Cut Tape, MouseReel
onsemi Switching Controllers Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies For GaNFET direct drive
2,500Expected 2026-09-30
Cut Tape
$1.21
$0.864
$0.775
$0.677
$0.629
Reel
$0.629
Min.: 1
Mult.: 1
Max.: 250
: 2,500
1 Output 1 MHz 35 V 10 V - 40 C + 125 C SMD/SMT SOIC-8 Reel, Cut Tape