PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
UCD9248PFC Texas Instruments	IC DGTL PWM CTRLR SYNC 80TQFP	794
MAX8685AETD+ Analog Devices, Inc.	XENON PHOTOFLASH CHARGER	2252
LTC3589HUJ#TRPBF Analog Devices, Inc.	IC DC/DC CONV 8-OUTPUT 40QFN	0
LT6110ITS8#TRPBF Analog Devices, Inc.	IC WIRE DROP COMPENSATOR	0
TPS65311QRVJRQ1 Texas Instruments	IC PWR MGMT UNIT AUTO 56VQFN	4749
MAX6340UK28+ Analog Devices, Inc.	MAX6340 LOW-POWER, SOT MICROPROC	17381
LP3913SQX-AA/NOPB Texas Instruments	IC PWR MGMT W/CHRGR 48WQFN	0
TPS61120RSARG4 Texas Instruments	IC BOOST CONV DUAL-OUT 16-QFN	0
MC34PF4210A2ES NXP Semiconductors	PF4210	0
LTC4365CTS8-1#TRPBF Analog Devices, Inc.	IC OVERVOLTAGE PROT TSOT23-8	0
MAX6314US31D4+	MAX6314 68HC11/BIDIRECTIONAL-COM	9320
MC32PF3000A0EPR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX7 PRE-	0
MAX6381XR26D3+ Analog Devices, Inc.	MAX6381 SINGLE LOW-VOLTAGE, LOW-	9054
TWL6030B1AACMR Texas Instruments	POWER SUPPLY MANAGEMENT CIRCUIT,	6337
TPS659106A1RSL Texas Instruments	TPS65910 INTEGRATED POWER MANAGE	2681
EH300 Advanced Linear Devices, Inc.	MODULE ENERGY HARVESTER W/CONN	1
LP3923TLX/NOPB Texas Instruments	PMU+CHGR+8 LDO+1 BUCK 30USMD	0
MWCT1000CFM NXP Semiconductors	IC DSP SGL COIL 5W 5V STD 32QFN	236
MAX17014ETM+ Analog Devices, Inc.	DUAL SWITCHING CONTROLLER, CURRE	7482
LTC3555EUFD-1#PBF Analog Devices, Inc.	IC USB POWER HI EFF 28-QFN	87

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