PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
MAX845ESA-T

MAX845ESA-T

Analog Devices, Inc.

ISOLATED TRANSFORMER DRIVER

3113

MAX6806UR26+

MAX6806UR26+

Analog Devices, Inc.

MAX6806 VOLTAGE DETECTOR

2233

LTC4365HTS8-1#TRMPBF

LTC4365HTS8-1#TRMPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROT TSOT23-8

0

MAX6719UTRVD3+

MAX6719UTRVD3+

Analog Devices, Inc.

MAX6719 TRIPLE, ULTRA-LOW-VOLTAG

1323

MAX6387XS22D3+

MAX6387XS22D3+

Analog Devices, Inc.

MAX6387 SC70, SINGLE LOW-VOLTAGE

3849

LT3751IFE#TRPBF

LT3751IFE#TRPBF

Analog Devices, Inc.

IC CTRLR CAP CHARGER 20-TSSOP

0

LTC3109IUF#TRPBF

LTC3109IUF#TRPBF

Analog Devices, Inc.

IC BOOST CONVERTER PMU 20QFN

0

MAX6326UR26+

MAX6326UR26+

Analog Devices, Inc.

MAX6326 3-PIN, ULTRA-LOW-POWER S

144

LTC1923EUH#TRPBF

LTC1923EUH#TRPBF

Analog Devices, Inc.

IC THERMOELEC COOLER CNTRLR32QFN

0

LTC3553EUD#PBF

LTC3553EUD#PBF

Analog Devices, Inc.

IC USB POWER MANAGER 20UTQFN

5550

MAX6377XR23+

MAX6377XR23+

Analog Devices, Inc.

MAX6377 3-PIN, ULTRA-LOW-POWER V

12437

MAX6375UR23+

MAX6375UR23+

Analog Devices, Inc.

MAX6375 3-PIN, ULTRA-LOW-POWER V

1780

LTC4365HTS8#TRPBF

LTC4365HTS8#TRPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROT TSOT23-8

0

LTC2971CY#PBF

LTC2971CY#PBF

Analog Devices, Inc.

2-CHANNEL HIGH VOLTAGE PMBUS POW

0

MAX6833FXRD0+

MAX6833FXRD0+

Analog Devices, Inc.

MAX6833 ULTRA-LOW-VOLTAGE VOLTAG

2103

MAX1798AEGP

MAX1798AEGP

Analog Devices, Inc.

CDMA CELLULAR/PCS SYSTEM POWER

16271

LTC3108IGN#TRPBF

LTC3108IGN#TRPBF

Analog Devices, Inc.

IC DCDC CONV STP-UP LV 16SSOP

0

MAX6353SZUK+

MAX6353SZUK+

Analog Devices, Inc.

MAX6353 DUAL-VOLTAGE MICROPROCES

7127

MAX6722UTWGD3+

MAX6722UTWGD3+

Analog Devices, Inc.

MAX6722 DUAL/TRIPLE, ULTRA-LOW-V

2184

MAX6721UTSYD3+

MAX6721UTSYD3+

Analog Devices, Inc.

MAX6721 DUAL/TRIPLE, ULTRA-LOW-V

4299

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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