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NCP81278DMNTXG

Description
Switch controller NCP81278T WITH SUV
CategoryPower/power management    The power supply circuit   
File Size198KB,14 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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NCP81278DMNTXG Overview

Switch controller NCP81278T WITH SUV

NCP81278DMNTXG Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerON Semiconductor
package instructionQFN-20
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time9 weeks
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage24 V
Minimum input voltage3.6 V
Nominal input voltage12 V
JESD-30 codeS-PQCC-N20
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals20
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output voltage2 V
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC20,.11SQ,16
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Maximum seat height1 mm
Maximum supply current (Isup)7.5 mA
Nominal supply voltage (Vsup)5 V
surface mountYES
Switch configurationBUCK
Maximum switching frequency800 kHz
Temperature levelAUTOMOTIVE
Terminal surfaceTin (Sn)
Terminal formNO LEAD
Terminal pitch0.4 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width3 mm
NCP81278
Compact 2-Phase
Synchronous Buck
Controller with Integrated
Gate Drivers and PWM VID
Interface
The NCP81278, a general−purpose two−phase synchronous buck
controller, integrates gate drivers and PWM VID interface in a
QFN−20 package and provides a compact−footprint power
management solution for new generation computing processors. It has
a programmable power save interface (PSI) and is able to operate in
1−phase diode emulation mode to obtain high efficiency in light−load
condition. Operating in high switching frequency up to 800 kHz
allows employing small size inductor and capacitors. The part is able
to support all−ceramic−capacitor applications.
Features
www.onsemi.com
QFN20
CASE 485BC
MARKING DIAGRAM
81278
ALYWG
G
81278
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
3.6 V to 24 V Input Voltage Range
Output Voltage up to 2.0 V with PWM VID Interface
Differential Output Voltage Sense
Integrated Gate Drivers
200 kHz ~ 800 kHz Switching Frequency
Power Saving Interface (PSI)
Support both 3.3 V and 1.8 V VID
Power Good Output
Programmable Over Current Protection
Over Voltage Protection
Under Voltage Protection
Thermal Shutdown Protection
QFN20, 3x3 mm, 0.4 mm Pitch Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
PH1
LG1
PVCC
LG2
PH2
1
BST1
HG1
EN
PSI
VID
BST2
HG2
PGOOD
COMP/ILMT
FB
GND
Typical Applications
ORDERING INFORMATION
Device
NCP81278MNTXG
Package
QFN20
(Pb−Free)
Shipping
4,000 /
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
©
Semiconductor Components Industries, LLC, 2016
1
April, 2017 − Rev. 4
VIDBUF
REFIN
VREF
FS
FBRTN
(Top View)
Publication Order Number:
NCP81278/D
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