PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
LT2940CMS#TRPBF Analog Devices, Inc.	IC POWER/CURRENT MONITOR 12MSOP	0
MAX6423XS25+ Analog Devices, Inc.	MAX6423 LOW-POWER, SOT MICROPROC	1011
LT3585EDDB-0#TRPBF Analog Devices, Inc.	IC CHARGER PHOTOFLASH 10-DFN	0
MAX6718UKSDD3+ Analog Devices, Inc.	MAX6718 TRIPLE, ULTRA-LOW-VOLTAG	1482
MAX6719UTVHD3+ Analog Devices, Inc.	MAX6719 TRIPLE, ULTRA-LOW-VOLTAG	1915
LTC3558EUD#PBF Analog Devices, Inc.	IC USB BATTERY CHARGER 20-QFN	677
LTC3108EGN#TRPBF Analog Devices, Inc.	IC DCDC CONV STP-UP LV 16SSOP	2402
MAX17126ETM+ Analog Devices, Inc.	SWITCHING REGULATOR	11137
MAX6423XS26+ Analog Devices, Inc.	MAX6423 LOW-POWER, SOT MICROPROC	1967
MAX6761TATAD0 Analog Devices, Inc.	MAX6761 LOW-POWER, SINGLE/DUAL-V	1525
MAX6426UK16+ Analog Devices, Inc.	MAX6426 LOW-POWER, SOT MICROPROC	1194
MAX6375UR26+ Analog Devices, Inc.	MAX6375 3-PIN, ULTRA-LOW-POWER V	3330
MAX16919DGEE/V+ Analog Devices, Inc.	CURRENT-SENSE AMPLIFIER	8300
MAX6378XR46+ Analog Devices, Inc.	MAX6378 3-PIN, ULTRA-LOW-POWER V	6863
LTC3455EUF#PBF Analog Devices, Inc.	IC CONV DC/DC DUAL USBBATT 24QFN	273
LT3751IFE#PBF Analog Devices, Inc.	IC CTRLR CAP CHARGER 20-TSSOP	229
MAX6444US29L+ Analog Devices, Inc.	MAX6444 UP RESET CIRCUITS WITH L	1028
AD5800BCPZ-REEL7 Analog Devices, Inc.	250O FOCUS/ZOOM LENS DRIVER	2739
ADP2450ACPZ-3-R7 Analog Devices, Inc.	INDUSTRIAL CIRCUIT BREAKER PMU	0
LTC3586EUFE-2#PBF Analog Devices, Inc.	IC USB POWER MANAGER HE 38-QFN	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