PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
MAX6348UR40+ Analog Devices, Inc.	MAX6348 3-PIN, ULTRA-LOW-POWER S	4241
TPS65054RSMTG4 Texas Instruments	IC PWR MGMT 6CH W/4 LDO 32VQFN	0
MC35FS6502CAER2 NXP Semiconductors	FS6500	0
BM92A12MWV-ZE2 ROHM Semiconductor	IC PD CTLR USB TYPE-C 40UQFN	2020
TPS65150QPWPRQ1 Texas Instruments	IC TRIPLE-OUT LCD SPPLY 24HTSSOP	0
TWL6030B1AACMRR Texas Instruments	IC POWER MGMT 187FCBGA	0
MAX17115ETJ+ Analog Devices, Inc.	ANALOG CIRCUIT, 1 FUNC, BICMOS	1440
LT6110IDC#TRPBF Analog Devices, Inc.	IC WIRE DROP COMPENSATOR	0
MWCT1001AVLHR NXP Semiconductors	5W MULTI-COIL AUTO 5V STANDAR	0
ISL6537ACRZR5160 Intersil (Renesas Electronics America)	DUAL SWITCHING CONTROLLER, VOLTA	1918
MAX4917AELT+	MAX4917 300MA, CURRENT-LIMIT SWI	3036
TPS657120YFFR Texas Instruments	ANALOG CIRCUIT, 1 FUNC	86995
BQ51013ARHLT Texas Instruments	IC WIRELESS PWR RCVR 20QFN	125
MAX6306UK47D2+ Analog Devices, Inc.	MAX6306 5-PIN, MULTIPLE-INPUT, P	1765
MAX4810CTN+T Maxim Integrated	IC DIGITAL PULSER DL 56TQFN	0
LP3919RL-A/NOPB	POWER SUPPLY SUPPORT CIRCUIT	250
MAX14690JEWX+T Maxim Integrated	IC LOW POWER BATT MGMT 36WLP	5000
MAX8621ZETG+ Analog Devices, Inc.	STEP-DOWN DC-DC CONVERTER	105180
ED8401P05QI Intel	CTRLR 2PH PMBUS6140 500KHZ 40QFN	1036
LP3906SQ-JXXI/NOPB Texas Instruments	IC REG DC-DC/LINEAR DUAL 24WQFN	2081

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