PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MAX16919DGEE/V+ Analog Devices, Inc.	CURRENT-SENSE AMPLIFIER	8300
L9524C STMicroelectronics	IC CTRL GLOW PLUG SYSTEM 24-SOIC	0
MAX8520ETP+ Maxim Integrated	IC DRVR PWR TEC 20-TQFN	2418
TPS650732RSLT Texas Instruments	IC PWR MGMT 5CH W/2 LDO 48VQFN	250
MC35FS6510NAE NXP Semiconductors	FS6500	0
ISL6271ACRZ Intersil (Renesas Electronics America)	IC REG PMIC 1BUCK 2LDO 20QFN	0
R1801K005A-TR RICOH Electronic Devices Co., LTD.	BUCK DC/DC CONVERTER FOR ENERGY	100
LM96551SQE/NOPB Texas Instruments	IC AFE ULTRA SND TX PULSER 80QFN	147
MC33SB0400ES NXP Semiconductors	LOW SIDE DRIVER X4, WHEEL SPEED	0
MC33FS6500LAE NXP Semiconductors	SYSTEM BASIS CHIP DCDC 0.8A VCO	0
MAX6378XR46+ Analog Devices, Inc.	MAX6378 3-PIN, ULTRA-LOW-POWER V	6863
LP3906SQ-DJXI/NOPB Texas Instruments	IC REG DC-DC/LINEAR DUAL 24WQFN	348
UC3907DWTRG4 Texas Instruments	POWER SUPPLY SUPPORT CIRCUIT	6000
LTC3455EUF#PBF Analog Devices, Inc.	IC CONV DC/DC DUAL USBBATT 24QFN	273
LT3751IFE#PBF Analog Devices, Inc.	IC CTRLR CAP CHARGER 20-TSSOP	229
UC3907NG4	UC3907 LOAD SHARE CONTROLLER	50
BD9862MUV-E2 ROHM Semiconductor	IC PMIC PS TFT-LCD 24VQFN	4949
UCD9248PFCR Texas Instruments	IC DGTL PWM SYSTEM CTRLR 80TQFP	433
X5045S8I-2.7AC7975	PSMC ADJUSTABLE, 1 CHANNEL, CMOS	13422
MAX6444US29L+ Analog Devices, Inc.	MAX6444 UP RESET CIRCUITS WITH L	1028

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