PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MC34PF1550A6EPR2 NXP Semiconductors	PF1550	0
MAX749CSA+T Maxim Integrated	IC SUPPLY LCD BIAS ADJ 8-SOIC	1295
LP3925RME-E/NOPB	POWER SUPPLY SUPPORT CIRCUIT, AD	0
MAX6721UTTGD3+ Analog Devices, Inc.	MAX6721 DUAL/TRIPLE, ULTRA-LOW-V	4337
MC34PF8100CHEP NXP Semiconductors	IC POWER MANAGEMENT I.MX8QM	0
UC3902DTR Texas Instruments	IC LOAD SHARE CONTROLLER 8SOIC	200
MC33FS4501CAER2 NXP Semiconductors	SYSTEM BASIS CHIP LINEAR 0.5A V	0
LT3484EDCB-1#TRPBF Analog Devices, Inc.	IC PHOTOFLASH CAP CHARGER 6-DFN	0
MAX6722AUTSYD3+ Analog Devices, Inc.	MAX6722 DUAL/TRIPLE, ULTRA-LOW-V	2200
MC34912G5AC NXP Semiconductors	IC SYSTEM BASIS CHIP LIN 32-LQFP	250
BQ500110RGZR Texas Instruments	TRANSMITTER IC, PQCC48	83815
MAX812REUS Analog Devices, Inc.	POWER SUPPLY SUPPORT CIRCUIT, FI	1451
MC32PF8121F1EPR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX8 PRE-PR	0
O917A152TRGZTQ1 Texas Instruments	O917A152TRGZTQ1	0
MAX6363PUT26+	MAX6363 LOW-POWER MICROPROCESSO	2507
LTC4365HDDB-1#TRMPBF Analog Devices, Inc.	IC OVERVOLTAGE PROTECT 8-DFN	1550
TPS6591104EA2ZRC Texas Instruments	POWER SUPPLY CIRCUIT, ADJ	3752
TPS65982DMCZBHR Texas Instruments	DOCK MANAGEMENT CONTROLLER	2489
LTC3127EDD#PBF Analog Devices, Inc.	IC BUCK BOOST SYNC ADJ 10DFN	681
MC33PF3000A0ES NXP Semiconductors	POWER MANAGEMENT IC I.MX7 PRE-	0

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