PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
MAX6316MUK46AY+

MAX6316MUK46AY+

Analog Devices, Inc.

MAX6316 5-PIN MICROPROCESSOR SUP

2397

MAX6467US22D3+

MAX6467US22D3+

Analog Devices, Inc.

MAX6467 MICROPROCESSOR SUPERVISO

4229

LTC3555EUFD-3#PBF

LTC3555EUFD-3#PBF

Analog Devices, Inc.

IC USB POWER MANAGER 28-QFN

0

MAX8798AETX+

MAX8798AETX+

Analog Devices, Inc.

INTERNAL-SWITCH BOOST REGULATOR

15661

MAX6381XR27D3+

MAX6381XR27D3+

Analog Devices, Inc.

MAX6381 SINGLE LOW-VOLTAGE, LOW-

2705

MAX5901NNETT+

MAX5901NNETT+

Analog Devices, Inc.

MAX5901 -100V TDFN, SIMPLE SWAPP

1823

MAX6719UTSDD3+

MAX6719UTSDD3+

Analog Devices, Inc.

MAX6719 TRIPLE, ULTRA-LOW-VOLTAG

1416

MAX6778LT+

MAX6778LT+

Analog Devices, Inc.

MAX6778 LOW-POWER, 1%-ACCURATE B

2064

LTC3109EUF#TRPBF

LTC3109EUF#TRPBF

Analog Devices, Inc.

IC BOOST CONVERTER PMU 20QFN

0

MAX6377UR31+

MAX6377UR31+

Analog Devices, Inc.

MAX6377 3-PIN, ULTRA-LOW-POWER V

3810

MAX6384XS26D4+

MAX6384XS26D4+

Analog Devices, Inc.

MAX6384 SINGLE LOW-VOLTAGE, LOW-

2370

MAX6376XR23+

MAX6376XR23+

Analog Devices, Inc.

MAX6376 3-PIN, ULTRA-LOW-POWER V

3090

LTC4367IDD-1#TRPBF

LTC4367IDD-1#TRPBF

Analog Devices, Inc.

SUPPLY PROTECTION CONTROLLER

0

LTC3351EUFF#PBF

LTC3351EUFF#PBF

Analog Devices, Inc.

HOT SWAPPABLE HIGH CURRENT SUPER

0

MAX6719UTTZD3+

MAX6719UTTZD3+

Analog Devices, Inc.

MAX6719 TRIPLE, ULTRA-LOW-VOLTAG

7093

LTC4361HDC-1#TRMPBF

LTC4361HDC-1#TRMPBF

Analog Devices, Inc.

IC OVP/OCP PROTECTION CTLR 8DFN

463

MAX6722AUTYDD3+

MAX6722AUTYDD3+

Analog Devices, Inc.

MAX6722 DUAL/TRIPLE, ULTRA-LOW-V

1557

LTC4361ITS8-1#TRMPBF

LTC4361ITS8-1#TRMPBF

Analog Devices, Inc.

IC OVERVOLT PROT CONT TSOT23-8

480

LTC3455EUF-1#TRPBF

LTC3455EUF-1#TRPBF

Analog Devices, Inc.

IC DC/DC CONV DUAL CHRG 24-QFN

0

LT2940IDD#PBF

LT2940IDD#PBF

Analog Devices, Inc.

IC CURRENT/POWER MONITOR 12DFN

420

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

TypeFunctional FeaturesApplication Examples
Battery PMICsIntegrate battery charging, fuel gauging, and protection circuitsSmartphones, wearable devices
DC-DC ControllersRegulate voltage conversion with external MOSFETsHigh-performance computing (HPC) systems
AC-DC ControllersConvert AC to DC with power factor correction (PFC)Server power supplies, industrial equipment
LED DriversProvide constant current for LED arraysAutomotive lighting, display backlighting
Multi-Channel PMICsSupport multiple regulated outputs with sequencingMedical 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

ParameterImportance
Input Voltage RangeDetermines compatibility with power sources (e.g., 2.7V-24V for battery systems)
Output Current CapabilityDefines maximum load support (e.g., 0.5A-10A per channel)
Efficiency (Typical >90%)Impacts thermal performance and battery life
Quiescent CurrentCrucial for low-power standby modes (<10 A typical)
Protection FeaturesEnsures reliability under fault conditions
Operating TemperatureIndustrial (-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

ManufacturerRepresentative ProductKey Features
Texas InstrumentsTPS659126-channel PMIC for AMOLED displays
STMicroelectronicsSTM32L4 Series PMICUltra-low-power with dynamic voltage scaling
ON SemiconductorNCP185xHigh-current battery charger with JEITA compliance
Analog DevicesLTC297xDigital power system management (PSM) IC
InfineonPSoC 6 PMICIntegrated with microcontroller for IoT applications

7. Selection Guidelines

  1. Define system power rails and sequencing requirements
  2. Match input voltage range with source characteristics (battery, AC adapter, etc.)
  3. Evaluate thermal performance under maximum load
  4. Prioritize protection features for critical applications
  5. 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
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