PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
PI3USB9281CXWEX Zetex Semiconductors (Diodes Inc.)	IC USB 2.0 PORT DETECT 20UQFN	454
P8300-U0NDGI8 Renesas Electronics America	VFQFPN 7.00X7.00X1.00 MM, 0.40MM	0
TPS65560RGTR Texas Instruments	TPS65560 INTEGRATED PHOTO FLASH	206240
LT3420EMS#TRPBF Analog Devices, Inc.	IC PHOTOFLASH CAP CHARGER 10MSOP	0
BQ501210RGCT Texas Instruments	WIRELESS POWER MEDIUM POWER TRAN	242
MC33FS6522NAER2 NXP Semiconductors	SYSTEM BASIS CHIP DCDC 2.2A VCO	0
MAX14693ATP+T Maxim Integrated	IC POWER CNTRLLR 6A TQFN	0
MIC2810-CGJYML	DIGITAL POWER MANAGEMENT IC 2 MH	4754
MC13892BJVLR2 Freescale Semiconductor, Inc. (NXP Semiconductors)	POWER SUPPLY CIRCUIT, ADJ	18000
BQ500212ARGZT Texas Instruments	IC WIRELESS PWR TX 48VQFN	241
LTC3625IDE-1#TRPBF Analog Devices, Inc.	IC SUPERCAP CHARGER 1A 12DFN	0
O3853AQDCARQ1 Texas Instruments	AUTOMOTIVE HIGH VOLTAGE POWER MA	1995
LTC2971HY-1#PBF Analog Devices, Inc.	2-CHANNEL HIGH VOLTAGE PMBUS POW	0
BQ51025YFPT Texas Instruments	IC WIRELESS PWR RCVR 42-DSBGA	1267
LTC3675EUFF-1#TRPBF Analog Devices, Inc.	IC PWR SUPPLY + LED DRVR 44QFN	0
MC33FS6523CAE NXP Semiconductors	SYSTEM BASIS CHIP DCDC 2.2A VCO	54
BM92T20MWV-ZE2 ROHM Semiconductor	USB TYPE-C PD CONTROL LSI, AC AD	0
NCP367OPMUECTBG	POWER SUPPLY SUPPORT CIRCUIT, AD	13502
MAX6760TATZD3 Analog Devices, Inc.	MAX6760 LOW-POWER, DUAL-VOLTAGE	2500
IR35204MTRPBF IR (Infineon Technologies)	IC CTRLR PWM MULTIPHASE 40QFN	1940

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