PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
LM2642MTCX Texas Instruments	SWITCHING CONTROLLER	2500
ISL78419ARZ Intersil (Renesas Electronics America)	IC TFT-LCD PS REGULATOR 28QFN	0
MAX16928BGUP/V+ Maxim Integrated	IC TFT-LCD PWR SUPPLY 20TSSOP	444
MC33FS6520LAE NXP Semiconductors	SYSTEM BASIS CHIP DCDC 2.2A VCO	0
MAX6414UK26+ Analog Devices, Inc.	MAX6414 LOW-POWER, SINGLE-VOLTAG	929
MAX8520ETP+T Maxim Integrated	IC DRVR PWR TEC 20-TQFN	2080
TLE8203EXUMA1 IR (Infineon Technologies)	TLE8203E - MIRROR POWER IC	0
MC13892CJVK NXP Semiconductors	IC PWR MGMT I.MX35/51 139BGA	2080
LTC3589IUJ#TRPBF Analog Devices, Inc.	IC DC/DC CONV 8-OUTPUT 40QFN	0
BQ51051BRHLR Texas Instruments	IC WIRELESS PWR RCVR 20QFN	2285
MAX6719UTTED3+ Analog Devices, Inc.	MAX6719 TRIPLE, ULTRA-LOW-VOLTAG	1153
MC34VR500V6ESR2 NXP Semiconductors	REGULATOR BUCK QUAD WITH UP TO	0
MAX888ECJ Analog Devices, Inc.	HANDSET POWER-MANAGEMENT IC	249
MAX6760TATWD3 Analog Devices, Inc.	MAX6760 LOW-POWER, DUAL-VOLTAGE	450
ACS71020KMABTR-030B3-I2C Allegro MicroSystems	SINGLE PHASE, ISOLATED, POWER MO	3362
MAX1552ETE Analog Devices, Inc.	COMPLETE POWER FOR LOW-COST PDA	2151
MC34PF8100A0EP NXP Semiconductors	IC POWER MANAGEMENT	0
NE57814DD,518 NXP Semiconductors	TERMINATOR SUPPORT CIRCUIT	0
P9038-RNDGI Renesas Electronics America	IC WIRELESS PWR TX	0
MCZ33812AEK Freescale Semiconductor, Inc. (NXP Semiconductors)	BUFFER/INVERTER BASED PERIPHERAL	142

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