PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MC34PF4210A0ESR2 NXP Semiconductors	PF4210	0
TPS65168RSBR Texas Instruments	TPS65168 HIGH RESOLUTION, FULLY	47694
L99DZ100GPTR STMicroelectronics	IC AUTOMOTIVE DOOR MODULE 64LQFP	0
MAX14722ATP+ Maxim Integrated	IC CURRENT LIMIT ADJ 20TQFN	2040
MAX6424UK26+	MAX6424 LOW-POWER, SOT MICROPROC	2045
MAX6721UTYDD3+ Analog Devices, Inc.	MAX6721 DUAL/TRIPLE, ULTRA-LOW-V	925
LM10500SQ-1.0/NOPB Texas Instruments	IC ENERGY MGMT 5A 0.1V SD 28WQFN	0
MAX6899PALT+ Analog Devices, Inc.	POWER SUPPLY SUPPORT CIRCUIT, AD	518
MAX77863AEWJ+ Maxim Integrated	IC PMIC 13REG 8GPIO 90WLP	515
TDA3629T/YM,112 NXP Semiconductors	IC LIGHT POSITION CTRLR 16-SOIC	946
MAX6753KA16+ Analog Devices, Inc.	MAX6753 UP RESET CKT W/CAPACITOR	1516
MC33FS6521NAE NXP Semiconductors	SYSTEM BASIS CHIP DCDC 2.2A VCO	387
MAX17031ETG+ Maxim Integrated	IC CTLR DUAL QUICK PWM SD 24TQFN	71
SP802RCN-L	3.0V/3.3V LOW POWER MICROPROCESS	1512
MAX1838EEE+ Analog Devices, Inc.	MAX1838 DUAL USB SWITCH WITH FAU	1187
MC33FS6511NAER2 NXP Semiconductors	SYSTEM BASIS CHIP DCDC 1.5A VCO	0
MAX6316LUK45CX+	MAX6316 5-PIN MICROPROCESSOR SUP	10448
O919A14ETRGZRQ1 Texas Instruments	PMU FOR PROCESSOR	0
BD9892K-E2 ROHM Semiconductor	IC INVERTER CTRL DC-AC 44-QFP	0
LTC4360ISC8-2#TRMPBF Analog Devices, Inc.	IC OVERVOLTAGE PROT CONT SC70-8	1832

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