PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
LT3485EDD-1#PBF Analog Devices, Inc.	IC CHARGER PHOTOFLASH 10-DFN	0
MAX1666SEEE Analog Devices, Inc.	POWER SUPPLY SUPPORT CIRCUIT, AD	60
NCP81022MNTXG	AMD VR CONTROLLER	5000
LTC4367HDD#PBF Analog Devices, Inc.	SUPPLY PROTECTION CONTROLLER	2400
MXD1810XR41+ Analog Devices, Inc.	LOW-POWER MICROPROCESSOR RESET C	2378
MC32PF1510A2EP NXP Semiconductors	PF1510	0
LTC3577EUFF-3#PBF Analog Devices, Inc.	POWER SUPPLY MANAGEMENT CIRCUIT,	2672
LTC3588IMSE-1#TRPBF Analog Devices, Inc.	IC ENERGY HARVESTING PSU 10MSOP	0
MAX6333UR16D3+ Analog Devices, Inc.	MAX6333 3-PIN, ULTRA-LOW-VOLTAGE	970
MC33PF8100EAESR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX8 PRE-PR	0
RV4145AN Sanyo Semiconductor/ON Semiconductor	IC CTRLR LP AC GFI 8-DIP	7
STNRGPF12 STMicroelectronics	TWO-CHANNEL INTERLEAVED CCM PFC	0
MC33PF8200DFES NXP Semiconductors	I.MX8QXP WITH DDR3L	0
LTC1153CS8#PBF Analog Devices, Inc.	IC ELECTR CIRCUIT BREAKER 8-SOIC	4569
MAX16970AGEEB/V+ Maxim Integrated	AUTOMOTIVE USB PROTECTOR WITH CD	0
UCS1001-1-BP-TR Roving Networks / Microchip Technology	IC USB PORT POWER CTRLR 20QFN	4252
LTC4367IMS8#TRPBF Analog Devices, Inc.	SUPPLY PROTECTION CONTROLLER	0
ADP3408ARU-2.5-RL Analog Devices, Inc.	IC GSM PWR MGMT SYST 28TSSOP	17230
SI8941AB-ISR Silicon Labs	POWER ISOLATION	0
EH301A Advanced Linear Devices, Inc.	MODULE ENERGY HARVESTER W/CONN	4

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