PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
BQ24640RVAT Texas Instruments	IC SYNC SW-MODE BAT CHRGR 16VQFN	288
MAX20361AEWC+ Maxim Integrated	SINGLE CELL SOLAR HARVESTER	821
MC32PF1510A7EP NXP Semiconductors	PF1510	0
MC34827A1EPR2 NXP Semiconductors	MICRO USB INTERFACE	0
MC34PF3001A7EPR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX7 PRE-	0
TPS65177ARHAR Texas Instruments	IC BIAS PWR SUPP 6CH LCD 40VQFN	0
MAX6315US44D1+ Analog Devices, Inc.	MAX6315 OPEN-DRAIN SOT MICROPROC	1847
LTC3555IUFD-3#TRPBF Analog Devices, Inc.	IC USB POWER MANAGER 28-QFN	0
P9036BNTGI8 Renesas Electronics America	IC WIRELESS TRANSMITTER 48TQFN	2195
MC32PF3000A3EPR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX7 PRE-	0
ISL6271ACR-T Intersil (Renesas Electronics America)	SWITCHING REGULATOR, 0.8A	5569
P91E0A-H4NHG28 Renesas Electronics America	VFQFPN 9.00X9.00X0.85 MM, 0.50MM	0
LM26484SQE/NOPB Texas Instruments	IC PMU REG BUCK/LDO DUAL 24WQFN	158
LM80CIMT-3	POWER SUPPLY MANAGEMENT CIRCUIT,	149
MAX6412UK30+ Analog Devices, Inc.	MAX6412 LOW-POWER, SINGLE-VOLTAG	958
MAX6326XR25+ Analog Devices, Inc.	MAX6326 3-PIN, ULTRA-LOW-POWER S	3224
BD49101AEFS-ME2 ROHM Semiconductor	MULTI-CHANNEL POWER SUPPLY IC FO	2866
TPS65141PWPR Texas Instruments	TPS65141 4-CH LCD BIAS W/ FULLY	27250
MAX6327UR26+ Analog Devices, Inc.	MAX6327 3-PIN, ULTRA-LOW-POWER S	7237
MAX6468XS22D3+ Analog Devices, Inc.	MAX6468 TRIPLE ULTRA-LOW-VOLTAGE	1875

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