PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MAX8685FETD+T Analog Devices, Inc.	INTERFACE CIRCUIT	2000
LT3751EFE#TRPBF Analog Devices, Inc.	IC CTRLR CAP CHARGER 20-TSSOP	2541
MAX6837VXSD3+ Analog Devices, Inc.	MAX6837 ULTRA-LOW-VOLTAGE VOLTAG	882
MAX769EEI Analog Devices, Inc.	TWO-WAY PAGER SYSTEM IC	1458
LTC4361HDC-2#TRMPBF Analog Devices, Inc.	IC OVP/OCP PROTECTION CTLR 8DFN	324
AD5800BCPZ-WP Analog Devices, Inc.	FOCUS/ZOOM LENS DRIVER	2160
LTC1153IN8#PBF Analog Devices, Inc.	IC ELECTRNC CIRCUIT BREAKER 8DIP	0
LT3485EDD-1#TRPBF Analog Devices, Inc.	IC CHARGER PHOTOFLASH 10-DFN	0
MAX6359LTUT+ Analog Devices, Inc.	MAX6359 DUAL-VOLTAGE MICROPROCES	0
MAX6718UKSVD3+T Analog Devices, Inc.	POWER SUPPLY SUPPORT CIRCUIT, FI	2500
LTC3108IDE-1#PBF Analog Devices, Inc.	IC BOOST PROGRAMABLE DUAL 12DFN	0
MAX14527ETA+ Analog Devices, Inc.	MAX14527 ADJUSTABLE OVER VOLTAGE	310
MAX6354LSUK+ Analog Devices, Inc.	MAX6354 DUAL-VOLTAGE MICROPROCES	200
LTC3588IMSE-1#PBF Analog Devices, Inc.	IC ENERGY HARVESTING PSU 10MSOP	517
LTC3108EGN-1#TRPBF Analog Devices, Inc.	IC CONV DC/DC PWR MANAGER 16SSOP	0
LTC4367HDD-1#PBF Analog Devices, Inc.	SUPPLY PROTECTION CONTROLLER	2419
LTC4361ITS8-2#TRPBF Analog Devices, Inc.	IC CTLR OVP AUTO RETRY TSOT23-8	0
MAX6409BS33-T Analog Devices, Inc.	MAX6409 VOLTAGE DETECTOR IN 4-BU	7500
LTC3558EUD#TRPBF Analog Devices, Inc.	IC USB BATTERY CHARGER 20-QFN	0
MAX4006EUT Analog Devices, Inc.	POWER MANAGEMENT CIRCUIT, BICMOS	2185

PMIC - Power Management - Specialized

1. Overview

Specialized Power Management ICs (PMICs) are application-specific integrated circuits designed to optimize power distribution and management in electronic systems. These devices provide tailored solutions for voltage regulation, battery management, power sequencing, and energy efficiency optimization. Their importance in modern technology lies in enabling compact designs, reducing power consumption, and improving reliability for applications ranging from mobile devices to automotive systems.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Battery PMICs	Integrate battery charging, fuel gauging, and protection circuits	Smartphones, wearable devices
DC-DC Controllers	Regulate voltage conversion with external MOSFETs	High-performance computing (HPC) systems
AC-DC Controllers	Convert AC to DC with power factor correction (PFC)	Server power supplies, industrial equipment
LED Drivers	Provide constant current for LED arrays	Automotive lighting, display backlighting
Multi-Channel PMICs	Support multiple regulated outputs with sequencing	Medical imaging equipment, IoT gateways

3. Structure and Components

Typical physical structure includes:

QFN/BGA packages for compact PCB integration
Internal blocks: Voltage regulators (LDOs, DC-DC converters), ADC/DAC modules, I2C/SPI interfaces
Protection circuits: Overcurrent (OCP), Overvoltage (OVP), Thermal shutdown (OTP)

4. Key Technical Specifications

Parameter	Importance
Input Voltage Range	Determines compatibility with power sources (e.g., 2.7V-24V for battery systems)
Output Current Capability	Defines maximum load support (e.g., 0.5A-10A per channel)
Efficiency (Typical >90%)	Impacts thermal performance and battery life
Quiescent Current	Crucial for low-power standby modes (<10 A typical)
Protection Features	Ensures reliability under fault conditions
Operating Temperature	Industrial (-40 C to +125 C) or automotive (-40 C to +150 C) grades

5. Application Areas

Consumer Electronics: Mobile phones, tablets, AR/VR headsets
Automotive: ADAS systems, electric vehicle (EV) battery management
Industrial: PLC systems, robotics actuators
Healthcare: Portable diagnostic devices, MRI gradient coil drivers
IoT: Edge sensors, smart meters

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Texas Instruments	TPS65912	6-channel PMIC for AMOLED displays
STMicroelectronics	STM32L4 Series PMIC	Ultra-low-power with dynamic voltage scaling
ON Semiconductor	NCP185x	High-current battery charger with JEITA compliance
Analog Devices	LTC297x	Digital power system management (PSM) IC
Infineon	PSoC 6 PMIC	Integrated with microcontroller for IoT applications

7. Selection Guidelines

Define system power rails and sequencing requirements
Match input voltage range with source characteristics (battery, AC adapter, etc.)
Evaluate thermal performance under maximum load
Prioritize protection features for critical applications
Consider digital monitoring capabilities for smart systems

8. Industry Trends

Key trends shaping PMIC development:

Integration of wide-bandgap (SiC/GaN) drivers in power stages
AI-enabled dynamic power optimization for edge computing
48V direct-to-load architectures for data centers
Functional safety compliance (ISO 26262) for automotive systems
Sub-1 A leakage current management for battery-free IoT devices