PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MAX77654AENVN+ Maxim Integrated	IC PMIC W/3-OUTPUT SIMO/CHARGER	1593090
MAX8660ETL+ Maxim Integrated	IC POWER MANAGE XSCALE 40-TQFN	165
MAX1812EUB+ Maxim Integrated	IC SW USB DUAL W/FB 10-UMAX	17
MAX4940ACTN+ Maxim Integrated	IC DGTL PULSER HI-VOLT 56-TQFN	2518
MAX20046GTCA/V+ Maxim Integrated	IC HI-SPEED USB 2.0 PROTECTOR	2450
MAX845ESA+ Maxim Integrated	IC DRVR XFRMR CMOS PCMCIA 8SOIC	1827
MAX16929EGUI/V+ Maxim Integrated	IC TFT-LCD PWR SUPPLY 28TSSOP	350
MAX1586AETM+T Maxim Integrated	IC POWER MANAGEMENT 48-TQFN	0
MAX16928CGUP/V+T Maxim Integrated	IC TFT-LCD PWR SUPPLY 20TSSOP	122500
MAX16922ATPC/V+ Maxim Integrated	IC DCDC CONV STPDN DL LDO 20TQFN	0
MAX17007AGTI+ Maxim Integrated	IC CTRLR QPWM GRAPHICS 28TQFN	539
MAX14809ETK+ Maxim Integrated	IC MUX DUAL HV 68TQFN	0
MAX17075ETG+ Maxim Integrated	IC DC-DC CONV W/CHRG PUMP 24TQFN	229
MAX14723ATP+T Maxim Integrated	IC CURRENT LIMIT ADJ 20TQFN	0
MAX20335GEWX+T Maxim Integrated	WEARABLE CHARGE MGMT SOLUTION	5000
MAX1586AETM+ Maxim Integrated	IC POWER MANAGEMENT 48-TQFN	989
MAX16948AGEE/V+ Maxim Integrated	AUTOMOTIVE DUAL REMOTE ANTENNA C	7400
MAX16928DGUP/V+T Maxim Integrated	IC TFT-LCD PWR SUPPLY 20TSSOP	0
MAX253EUA+ Maxim Integrated	IC DRVR TRANSFORMER 1W 8UMAX	385500
MAX20012BATJJ/V+ Maxim Integrated	AUTOMOTIVE LOW-VOLTAGE 2-CHANNEL	1020480

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