Single-Phase Voltage
Regulator
High Efficiency, Integrated Power MOSFETs
NCP3284, NCP3284A
The NCP3284/A, a single−phase synchronous buck regulator,
integrates power MOSFETs to provide a high−efficiency and
compact−footprint power management solution. The NCP3284 is able
to deliver up to 30 A TDC output current, 35 A TDC for NCP3284A,
over a wide input and output operating voltage range. Operating in
high switching frequency up to 1 MHz allows employing small size
inductors and capacitors while maintaining high efficiency due to
integrated solution with high performance power MOSFETs. It
provides differential voltage sense, flexible soft−start programming,
and comprehensive protections.
www.onsemi.com
MARKING
DIAGRAM
NCP3284x
AWLYWWG
PQFN37 5x6, 0.5P
CASE 483BZ
Features
• V = 4.5 V ~ 18 V with Input Feedforward
IN
A
WL
Y
WW
G
= Assembly Site
= Wafer Lot Number
= Year of Production
= Work Week Number
= Pb−Free Designator
• V
= 0.8 V ~ 5.5 V with Remote Voltage Sense
OUT
• Fsw = 500k/600k/800k/1 MHz Switching Frequency
• Output Current: NCP3284 up to 30 A Continuous, 45 A Pulsed
Output Current: NCP3284A up to 35 A Continuous, 50 A Pulsed
• Integrated 5 V LDO or External 5 V Supply
PINOUT
• Enable with Programmable V UVLO
IN
• Selectable Forced CCM and Auto DCM/CCM for High Efficiency at
Light Load
36
35
34
33
32
31
30
29
• Programmable Soft Start
ILIM
28
1
2
VOS
• Output Discharge in Shutdown
PGOOD
27 EN
• Programmable Current Limit
VIN
3
26
BOOT
• Under−Voltage Protection and Over−Voltage Protection
• Recoverable Thermal Shutdown Protection
• Selectable Protection Mode (Latch−off or Hiccup)
• Power Good Indicator
VCC
4
25 PHASE
24 PVIN
23 PVIN
22 PVIN
VDRV
GL
5
PGND
PVIN
GL
6
PGND
PGND
7
• PQFN37, 5x6 mm, 0.5 mm Pitch Package
• This Device is Pb−Free and is RoHS Compliant
8
21
20
19
PVIN
PGND
PGND
9
PVIN
PGND
Typical Applications
10
• Point of Load
11
12
13
14
15
16
17
18
• Telecom and Networking
• Server and Storage System
• Computing Applications
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 11 of
this data sheet.
© Semiconductor Components Industries, LLC, 2019
1
Publication Order Number:
February, 2021 − Rev. 7
NCP3284/D