PMIC - Power Supply Controllers, Monitors

Part Number	Description / PDF	Quantity
ISL6121HIB Intersil (Renesas Electronics America)	POWER SUPPLY CIRCUIT, FIXED	4696
LTC2937HUHE#PBF Analog Devices, Inc.	IC SEQUENCER/SUPERVISOR 6CH 28QF	369
ADP1032ACPZ-3-R7 Analog Devices, Inc.	ISO UPMU & DIGI 3.3VOUT2	483
LM3880QMF-1AF/NOPB Texas Instruments	IC PWR SUPPLY SEQUENCER SOT23-6	1000
ISL28022FUZ-T7A Intersil (Renesas Electronics America)	IC VOLT MONITOR PRECISION 10MSOP	9832
SRK2000A STMicroelectronics	IC SMART DVR SYNC RECT LLC 8SOIC	2496
ADM1041AARQZ-REEL Analog Devices, Inc.	SECONDARY-SIDE CONTROLLER WITH C	7801
LTC2978ACUP#PBF Analog Devices, Inc.	IC PWR SUPP CTRLR MONITOR 64QFN	164
FAN7687AM	POWER SUPPLY CIRCUIT, FIXED	9503
SRK2001 STMicroelectronics	IC REG CTLR AC-DC LLC RES 10SSOP	1830
LTC2938IDE#PBF Analog Devices, Inc.	IC FOUR PWR SUPPLY MONITOR 12DFN	194
LM3881MMX/NOPB Texas Instruments	IC POWER SUPPLY SEQUENCER 8VSSOP	6771
SG6108DZ	POWER SUPPLY CIRCUIT, FIXED	1124
TEA1791AT/N1,118 NXP Semiconductors	IC CTLR SYNC RECTIFIER 8SOIC	0
MAX34440ETLA1+ Maxim Integrated	IC PS MANAGER PMBUS 6CH 40TQFN	0
FAN6290QHMX	POWER SUPPLY SUPPORT CIRCUIT	70000
LTC2945IUD-1#TRPBF	WIDE RANGE I2C POWER MONITOR	7260
LTC2922CF-2.5#TRPBF Analog Devices, Inc.	IC 5 PWR SUPPLY MONITOR 20TSSOP	0
FAN6248HCMX Sanyo Semiconductor/ON Semiconductor	LLC SR CONTROLLER	2500
LTC2927ITS8#TRPBF Analog Devices, Inc.	IC POWER SUPPLY CTRLR TSOT23-8	0

PMIC - Power Supply Controllers, Monitors

1. Overview

Power Supply Controllers and Monitors (PSCMs) are critical subcategories of Power Management Integrated Circuits (PMICs) that manage voltage regulation, current control, power sequencing, and system monitoring in electronic devices. These components ensure stable power delivery, optimize energy efficiency, and protect against faults such as overvoltage, undervoltage, and overheating. Their importance spans across consumer electronics, industrial systems, automotive electronics, and IoT devices, where precise power management is essential for performance and reliability.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Multi-Channel Controllers	Supports multiple independent or synchronized power rails; integrated MOSFET drivers	Smartphones, FPGA power supplies
Single-Channel Controllers	Optimized for dedicated DC-DC or AC-DC conversion; high precision regulation	Wearable devices, sensor modules
Power Monitors	Measures voltage, current, power, and temperature; I C/SMBus communication	Server power management, battery monitoring
Digital Power Controllers	Programmable via PMBus; real-time adaptive control	Data centers, telecom infrastructure

3. Structure and Components

A typical PSCM integrates analog and digital modules within a compact semiconductor package (e.g., QFN, BGA). Key components include:

Reference Voltage Generator: Provides stable voltage references for regulation.
PWM Controller: Adjusts duty cycles for DC-DC converters.
ADC/DAC Modules: Enable analog-to-digital conversion for feedback loops.
Communication Interface: I C, PMBus, or SPI for system integration.
Fault Detection Circuits: Overcurrent, undervoltage, and thermal shutdown protection.

4. Key Technical Parameters

Parameter	Description
Input Voltage Range	Determines compatibility with power sources (e.g., 2.7V 24V for portable devices).
Output Channels	Number of independent or grouped power rails managed.
Monitoring Accuracy	Typical error margin (e.g., 1% for voltage measurements).
Switching Frequency	Impacts efficiency and component size (e.g., 300kHz 2MHz).
Communication Protocol	Defines interface type (e.g., PMBus for digital power systems).

5. Application Fields

Consumer Electronics: Mobile phones, notebooks, gaming consoles.
Industrial: PLCs, motor drives, automation equipment.
Automotive: Battery Management Systems (BMS), ADAS sensors.
Telecom/Data Centers: Servers, networking switches, 5G base stations.
Medical Devices: Portable diagnostics, imaging equipment.

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Texas Instruments	TPS404x Series	Multi-phase controllers with PMBus interface
STMicroelectronics	L499x Series	High-efficiency synchronous buck controllers
Analog Devices	ADM127x Series	Digital power monitors with fault logging
Infineon Technologies	IRPS5401	Integrated DrMOS solution for servers

7. Selection Guidelines

Key considerations for selecting PSCMs:

Power Requirements: Match input/output voltage/current specifications to system needs.
Integration Level: Choose between standalone controllers and highly integrated PMICs.
Thermal Management: Evaluate package thermal resistance and derating curves.
Communication Needs: Select protocols compatible with host processors (e.g., I C vs. PMBus).
Environmental Conditions: Ensure operating temperature range and reliability meet application demands.
Cost vs. Performance: Balance precision and features against budget constraints.

8. Industry Trends

Emerging trends in PSCM development include:

Higher Integration: Combining controllers, drivers, and monitoring in single chips.
Digitalization: Expansion of PMBus-enabled devices for real-time telemetry.
Wide Bandgap Semiconductors: GaN/SiC compatibility for high-frequency applications.
AI-Driven Optimization: Machine learning algorithms for dynamic power adjustment.
Functional Safety: Enhanced fault diagnostics for ISO 26262/IEC 61508 compliance.