PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
PS8A0015WE Zetex Semiconductors (Diodes Inc.)	HEATER CONTROLLER SO-8	0
O919A14ETRGZTQ1 Texas Instruments	O919A14ETRGZTQ1	0
MAX6761TAWAD3 Analog Devices, Inc.	MAX6761 LOW-POWER, SINGLE/DUAL-V	1617
FAN41501SX Sanyo Semiconductor/ON Semiconductor	IC CTLR LOW PWR AC GFI 6-SSOT	1979
LT3468ES5-1#TRMPBF Analog Devices, Inc.	IC PHOTOFLASH CAP CHRGR TSOT23-5	0
MAX6420UK22+	MAX6420 LOW-POWER, DUAL-VOLTAGE	6776
LP2996MR/NOPB Texas Instruments	IC DDR TERMINATION REG 8SOPWRPAD	1664
PI5USB30216DXUAEX Zetex Semiconductors (Diodes Inc.)	IC PLUG IN DET TYPE C 12X2QFN	923
ADN8833ACPZ-R2 Analog Devices, Inc.	IC THERMO COOLER DRIVER 24LFCSP	91
TPS65142RTGR Texas Instruments	IC BIAS PWR SUP FOR LCD 32WQFN	0
IR3500MTRPBF IR (Infineon Technologies)	IC XPHASE3 CONTROLLER 32-MLPQ	5937
MAX1930ESA+T Maxim Integrated	IC SW CUR LIMIT USB 8-SOIC	0
MAX5043ETN Analog Devices, Inc.	SWITCH PMIC, MOSFETS & HOT-SWAP	0
LP3910SQX-AN/NOPB	LP3910 POWER MANAGEMENT IC (PMIC	10000
BQ51222YFPR Texas Instruments	IC WIRELESS PWR RCVR 42DSBGA	2139
BQ2007S Texas Instruments	POWER SUPPLY SUPPORT CIRCUIT, FI	1074
TPS658623ZGUT Texas Instruments	TPS658623 ADVANCED POWER MANAGEM	2174
MAX17126AETM+T Maxim Integrated	IC PWR SUPPLY W/VCOM AMP 48TQFN	2488
MAX16929AGUI/V+T Maxim Integrated	IC TFT-LCD PWR SUPPLY 28TSSOP	0
LTC4361CDC-1#TRPBF Analog Devices, Inc.	IC CTLR OVP LATCHOFF 8DFN	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