PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
HMC981LP3ETR

HMC981LP3ETR

Analog Devices, Inc.

IC ACTIVE BIAS CONTROLLER 16QFN

961

MAX6808XR32-T

MAX6808XR32-T

Analog Devices, Inc.

MAX6808 VOLTAGE DETECTOR

7500

LTC3577EUFF-1#TRPBF

LTC3577EUFF-1#TRPBF

Analog Devices, Inc.

IC PWR MANAGEMENT HANDHELD 44QFN

0

LTC4367IMS8#PBF

LTC4367IMS8#PBF

Analog Devices, Inc.

SUPPLY PROTECTION CONTROLLER

254

MAX17122ETL+

MAX17122ETL+

Analog Devices, Inc.

SWITCHING REGULATOR

626540

MAX749CPA

MAX749CPA

Analog Devices, Inc.

DIGITALLY ADJUSTABLE LCD SUPPLY

560

LTC4362CDCB-1#TRMPBF

LTC4362CDCB-1#TRMPBF

Analog Devices, Inc.

IC OVP/OVC PROTECT LATCHOFF 8DFN

203

ADP3408ACP-2.5-RL7

ADP3408ACP-2.5-RL7

Analog Devices, Inc.

IC GSM PWR MGMT SYST 32LFCSP

57070

LTC1699EGN-81#TRPBF

LTC1699EGN-81#TRPBF

Analog Devices, Inc.

IC PROGRAMMER VOLT SMBUS 16SSOP

0

LTC3588EMSE-2#PBF

LTC3588EMSE-2#PBF

Analog Devices, Inc.

IC ENERGY HARVESTING PSU 10MSOP

61

MAX6468US22D3+

MAX6468US22D3+

Analog Devices, Inc.

MAX6468 TRIPLE ULTRA-LOW-VOLTAGE

4909

MAX6721UTZWD3+

MAX6721UTZWD3+

Analog Devices, Inc.

MAX6721 DUAL/TRIPLE, ULTRA-LOW-V

762

LT3420EMS-1#PBF

LT3420EMS-1#PBF

Analog Devices, Inc.

IC PHOTOFLASH CAP CHARGER 10MSOP

252

MAX6363PUT29+

MAX6363PUT29+

Analog Devices, Inc.

MAX6363 LOW-POWER MICROPROCESSO

522

MAX6735AKASHD3+

MAX6735AKASHD3+

Analog Devices, Inc.

MAX6735 TRIPLE-VOLTAGE MICROPROC

2699

MAX6424UK22+

MAX6424UK22+

Analog Devices, Inc.

MAX6424 LOW-POWER, SOT MICROPROC

5161

ADP3522ACP-1.8-RL7

ADP3522ACP-1.8-RL7

Analog Devices, Inc.

IC GSM PWR MGMT SYST 32LFCSP

2473

MAX6718AUKLTD3+

MAX6718AUKLTD3+

Analog Devices, Inc.

POWER SUPPLY SUPPORT CIRCUIT, AD

129

LTC3554EUD#PBF

LTC3554EUD#PBF

Analog Devices, Inc.

IC USB POWER MANAGER 20UTQFN

15

LTC3589IUJ#PBF

LTC3589IUJ#PBF

Analog Devices, Inc.

IC DC/DC CONV 8-OUTPUT 40QFN

572

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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