PMIC - Power Management

PMIC - Power Management - Specialized

Part Number	Description / PDF	Quantity
TPS65161APWPR Texas Instruments	TPS65161A 4-CH LCD BIAS (3.7A MI	29923
MC32PF3000A2EPR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX7 PRE-	0
BM81004MUV-ZE2 ROHM Semiconductor	12V INPUT MULTI-CHANNEL SYSTEM P	1348
MAX8685FETD+T Analog Devices, Inc.	INTERFACE CIRCUIT	2000
LP3972SQX-A514/NOPB	POWER SUPPLY SUPPORT CIRCUIT, AD	744
MC33PF8201A0ESR2 NXP Semiconductors	POWER MANAGEMENT IC I.MX8 NON-PR	0
LT3751EFE#TRPBF Analog Devices, Inc.	IC CTRLR CAP CHARGER 20-TSSOP	2541
HV748K6-G Roving Networks / Microchip Technology	IC ULTRASOUND PULSER	0
TWL6030B107CMR Texas Instruments	TWL6030 FULLY INTEGRATED POWER M	4370
CS3351YDR14	ANALOG CIRCUIT, BIPOLAR, PDSO14	12500
MAX17523ETE+T Maxim Integrated	IC ADJ OVER V/I PROTC 16TQFN	0
MC33FS6600M2ES NXP Semiconductors	SAFETY SBC FOR S32S2 MCU	260
RN5T568AD RICOH Electronic Devices Co., LTD.	POWER MANAGEMENT SYSTEM DEVICE	100
MAX6837VXSD3+ Analog Devices, Inc.	MAX6837 ULTRA-LOW-VOLTAGE VOLTAG	882
A8436EEJTR-T Allegro MicroSystems	PHOTOFLASH CAPACITOR CHARGER	4352
P91E0A-P1NHG2 Renesas Electronics America	VFQFPN 9.00X9.00X0.85 MM, 0.50MM	0
LP2996MRX Texas Instruments	TERMINATOR SUPPORT CIRCUIT, PDSO	30000
UCS1001-4-BP-TR Roving Networks / Microchip Technology	IC USB PORT POWER CTRLR 20QFN	0
MAX769EEI Analog Devices, Inc.	TWO-WAY PAGER SYSTEM IC	1458
SN6501QDBVRQ1 Texas Instruments	IC XFRMR DRVR NCH 350MA SOT23-5	1621

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