PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
UC1544L	POWER SUPPLY SUPPORT CIRCUIT, FI	224
MAX8890ETCBBB-T Analog Devices, Inc.	CELLULAR RF POWER-MANAGEMENT	10000
PT8A3252WEX Zetex Semiconductors (Diodes Inc.)	HEATER CONTROLLER SO-16	0
MC32PF1510A5EPR2 NXP Semiconductors	PF1510	0
TPS5511P Texas Instruments	POWER SUPPLY SUPPORT CIRCUIT, FI	800
MC34VR500V3ES NXP Semiconductors	IC REG 9OUT BUCK/LDO 56QFN	0
MAX17526AATP+T Maxim Integrated	60V 6A ADJ OVP + OCP PROTECTION	0
TLE80803EMXUMA1 IR (Infineon Technologies)	IC MOTOR CTLR 24SSOP	0
MAX6314US44D1+ Analog Devices, Inc.	MAX6314 68HC11/BIDIRECTIONAL-COM	158
IRPS5401MTRPBF IR (Infineon Technologies)	IRPS5401 - INTEGRATED DC-DC POL	849
MAX6397ZATA Analog Devices, Inc.	MAX6397 OVERVOLTAGE PROTECTION S	172
MAX6722UTLTD3+ Analog Devices, Inc.	MAX6722 DUAL/TRIPLE, ULTRA-LOW-V	1908
MAX14690AEWX+T Maxim Integrated	IC LOW POWER BATT MGMT 36WLP	7500
MAX14690HEWX+T Maxim Integrated	IC LOW POWER BATT MGMT 36WLP	32500
TPS65150RGERG4 Texas Instruments	IC TRIPLE-OUT LCD SUPPLY 24-VQFN	0
MAX17031ETG+T Maxim Integrated	IC CTLR DUAL QUICK PWM SD 24TQFN	0
TPS659118A2ZRCT Texas Instruments	POWER SUPPLY MANAGEMENT CIRCUIT,	86000
MAX6834IXRD3+ Analog Devices, Inc.	MAX6834 ULTRA-LOW-VOLTAGE VOLTAG	18056
HD3SS3220RNHR Texas Instruments	IC DRP PORT CTLR USB-C 30WQFN	83
LTC2971HY-3#PBF Analog Devices, Inc.	2-CHANNEL HIGH VOLTAGE PMBUS POW	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