PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MAX16922ATPF/V+T Maxim Integrated	IC DCDC CONV STPDN DL LDO 20TQFN	15000
MAX4811CTN+ Maxim Integrated	IC PULSAR DIGITAL DUAL 56TQFN	129
MAX17613AATP+ Maxim Integrated	IC CURRENT LIMIT OV, UV, RP 20TQ	2268
MAX1969EUI+ Maxim Integrated	IC DRVR POWER 28-TSSOP	6375550
MAX14690IEWX+T Maxim Integrated	IC LOW POWER BATT MGMT 36WLP	0
MAX253EPA+ Maxim Integrated	IC XFRMR DRIVER RS485 8-DIP	2083300
MAX1978ETM+T Maxim Integrated	IC CNTRLR INT TEMP 48TQFN	1008
MAX16126TCA/V+ Maxim Integrated	LOAD-DUMP/REVERSE-VOLTAGE PROTEC	1200
MAX8521ETP+T Maxim Integrated	IC DRVR PWR TEC 20-TQFN	6318
MAX17000AETG+ Maxim Integrated	IC PWM CTLR DDR/DDR2/DDR3 24TQFN	75
MAX20342EWG+ Maxim Integrated	USB TYPE-C CHARGER DETECTION WIT	945
MAX8819BETI+ Maxim Integrated	IC PMIC W/INT CHARGER 28-TQFN	0
MAX16948AGTE/V+ Maxim Integrated	IC LDO/SWITCH ADJ DUAL 16TQFN	525
MAX16969BGEE/V+ Maxim Integrated	IC USB2.0 PROTECT 500MA-3A QSOP	5600
MAX20353AEWN+ Maxim Integrated	WEARABLE POWER MANAGEMENT SOLUTI	258
MAX16929CGUI/V+T Maxim Integrated	IC TFT-LCD PWR SUPPLY 28TSSOP	7500
MAX14636CVB+T Maxim Integrated	USB CHARGER DETECTION IC	0
MAX17612AATB+T Maxim Integrated	OVERVOLT OVERCURR PROTECTOR W/RE	0
MAX17480GTL+ Maxim Integrated	IC CTRLR SERIAL VID 40-TQFN	249
MAX17525ATP+T Maxim Integrated	IC POWER CONTROLLER 20TQFN	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