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VIN_6
Pin Number
14
VIN_1
Pin Number
9
ADDR
Pin Number
24
VOUT_4
Pin Number
28
SDA
Pin Number
2
VIN_7
Pin Number
15
VDD
Pin Number
21
FAULT#_D
Pin Number
6
SS
Pin Number
19
VOUT_2
Pin Number
26
NC2
Pin Number
17
VOUT_6
Pin Number
30
GND
Pin Number
20
VINF
Pin Number
7
VIN_4
Pin Number
12
SCL
Pin Number
1
VIN_8
Pin Number
16
ALERT#
Pin Number
3
VOUT_1
Pin Number
25
VOUT_5
Pin Number
29
VOUT_7
Pin Number
31
VIN_3
Pin Number
11
FAULT#_C
Pin Number
5
PG
Pin Number
23
VOUT_3
Pin Number
27
VTEMP
Pin Number
18
ON
Pin Number
4
VOUT_8
Pin Number
32
NC1
Pin Number
8
VIN_9
Pin Number
33
IMON
Pin Number
22
VIN_5
Pin Number
13
VIN_2
Pin Number
10
  • Generic Inductor
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    jharwinbarrozo
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  • Generic Capacitor
    Generic Capacitor
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    jharwinbarrozo
    1.5M
  • Generic Resistor
    Generic Resistor
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    jharwinbarrozo
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    natarius
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    43.0M
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NCP81428MNTXG

NCP81428MNTXG thumbnail
Hot Swap Controller 1 Channel General Purpose 32-LQFN (5x5)
The NCP81428MNTXG is a high-performance multi-phase synchronous buck controller designed for CPU, GPU, FPGA, ASIC, and high-current core power applications requiring accurate voltage regulation, fast transient response, and high efficiency. The device supports multi-phase operation with integrated gate drivers and advanced control architecture optimized for modern low-voltage, high-current power rails. It is intended for applications requiring dynamic voltage scaling, precise load-line regulation, and reliable system power management in computing, networking, telecommunications, and industrial platforms.
The controller operates with external MOSFET stages and supports flexible power stage configuration for optimized thermal and efficiency performance. It incorporates differential voltage sensing, programmable protection features, current balancing between phases, and high-speed transient compensation to maintain stable operation under rapidly changing load conditions.
Engineering Specification
Manufacturer onsemi
Manufacturer Part Number NCP81428MNTXG
Device Type Multi-Phase Synchronous Buck Controller with Integrated Gate Drivers
Control Topology Voltage Mode Multi-Phase PWM Control
Phase Configuration Dual-Phase Controller Architecture
Application Focus CPU Core Power GPU Core Regulation FPGA Power Rails ASIC Core Supplies High-Current DC-DC Regulation
Input Supply Range Supports Low-Voltage Bias Supply Operation for Digital Power Systems
Output Voltage Regulation Programmable Low-Voltage Output Regulation with Differential Remote Sense Capability
Switching Frequency Programmable PWM Switching Frequency with Multi-Phase Interleaving
Gate Driver Integration Integrated High-Side and Low-Side MOSFET Gate Drivers
Current Sensing Supports Inductor DCR Sensing and Sense Resistor Current Monitoring
Load-Line Support Programmable Load-Line Regulation and Droop Compensation
Voltage Positioning Adaptive Voltage Positioning for Improved Transient Performance
Protection Features Overcurrent Protection Overvoltage Protection Undervoltage Protection Thermal Protection Short-Circuit Protection Power-Good Monitoring
Power Management Features Soft-Start Control Enable Functionality Phase Balancing Fault Monitoring Sequencing Support
Compensation External Compensation Network Support for Loop Stability Optimization
Efficiency Features Synchronous Rectification Support Multi-Phase Interleaving for Reduced Ripple Current Optimized Gate Drive Timing
Package Type QFN Surface-Mount Package
Mounting Type Surface Mount Technology
Temperature Range Industrial Operating Temperature Range
Target Applications Server Motherboards High-Performance Embedded Computing Networking Equipment Telecommunications Infrastructure Industrial Processing Systems Graphics and Accelerator Platforms
#commonpartslibrary #integratedcircuit #powermanagement #hotswapcontrollers

Properties

NCP81428MNTXG

ON Semiconductor

Transistors

onsemi.com/pub/Collateral/NCP81428-D.PDF

IC

creativecommons.org/licenses/by/4.0/

parametric-v1

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