PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MAX16928AGUP/V+T Maxim Integrated	IC TFT-LCD PWR SUPPLY 20TSSOP	80000
UAA2016DG Sanyo Semiconductor/ON Semiconductor	IC PWR CTLR ZERO VOLT SW 8-SOIC	0
MC32PF1550A6EP NXP Semiconductors	PF1550	0
MAX16913GEE+T Maxim Integrated	IC CURRENT SENSE SWITCH 16-QSOP	0
MAX810SEXR+	MAX810 3-PIN MICROPROCESSOR RESE	2114
MC34FS6407NAER2 NXP Semiconductors	SYSTEM BASIS CHIP CAN 5V 0.7	0
MAX6361PUT46+ Analog Devices, Inc.	MAX6361 LOW-POWER MICROPROCESSO	355
LM3242TMX/NOPB Texas Instruments	LM3242 6MHZ, 750MA MINIATURE, AD	960
NCP392CRFCCT1G	ADJUSTABLE FRONT END OVERVOLTAGE	219000
MIC6315-26D3UY	OPEN-DRAIN MICROPROCESSOR RESET	45000
UCD9244ARGCT Texas Instruments	IC DGTL PWM SYSTEM CTRLR 64VQFN	150
TPS659163RGZR Texas Instruments	PMU FOR PROCESSOR - DEV	0
NCS1002ADR2G Sanyo Semiconductor/ON Semiconductor	IC SECONDARY-SIDE CTRLR 8SOIC	544
O917A14FTRGZRQ1 Texas Instruments	PMU FOR PROCESSOR	0
LT3484EDCB-0#TRPBF Analog Devices, Inc.	IC PHOTOFLASH CAP CHARGER 6-DFN	0
TPS65178ARSLT Texas Instruments	IC BIAS PWR SUP FOR LCD 48VQFN	250
TPS65950A3ZXNR Texas Instruments	IC PWR MGMT 11 LDO TXRX 209NFBGA	6837
MWCT1014SFVLLN NXP Semiconductors	WCT1014SF 100 LQFP	0
HMC980LP4ETR Analog Devices, Inc.	IC ACTIVE BIAS CONTROLLER 24QFN	59
MAX6860UK19D2+	MAX6860 NANOPOWER MICROPROCESSOR	622

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