PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
MAX6348UR40+

MAX6348UR40+

Analog Devices, Inc.

MAX6348 3-PIN, ULTRA-LOW-POWER S

4241

MAX17115ETJ+

MAX17115ETJ+

Analog Devices, Inc.

ANALOG CIRCUIT, 1 FUNC, BICMOS

1440

LT6110IDC#TRPBF

LT6110IDC#TRPBF

Analog Devices, Inc.

IC WIRE DROP COMPENSATOR

0

MAX6306UK47D2+

MAX6306UK47D2+

Analog Devices, Inc.

MAX6306 5-PIN, MULTIPLE-INPUT, P

1765

MAX8621ZETG+

MAX8621ZETG+

Analog Devices, Inc.

STEP-DOWN DC-DC CONVERTER

105180

LT3751IUFD#PBF

LT3751IUFD#PBF

Analog Devices, Inc.

IC CTRLR CAP CHRGR 4.75V 20-QFN

10

LTC3566EUF-2#TRPBF

LTC3566EUF-2#TRPBF

Analog Devices, Inc.

IC POWER MANAGER USB 24-QFN

0

MAX6762TAZID0+T

MAX6762TAZID0+T

Analog Devices, Inc.

POWER SUPPLY SUPPORT CIRCUIT, AD

2500

LT3420EDD#PBF

LT3420EDD#PBF

Analog Devices, Inc.

IC PHOTOFLASH CAP CHARGER 10-DFN

536

MAX714CWE

MAX714CWE

Analog Devices, Inc.

MAX714 BATTERY-POWERED SUPPLY SY

26

MAX6316MUK46CY+

MAX6316MUK46CY+

Analog Devices, Inc.

MAX6316 5-PIN MICROPROCESSOR SUP

20588

ADN2526ACPZ-R2

ADN2526ACPZ-R2

Analog Devices, Inc.

11.3 GBPS ACTIVE BACK-TERMINATIO

3485

MAX6422US22+

MAX6422US22+

Analog Devices, Inc.

MAX6422 LOW-POWER, SOT MICROPROC

1445

LTC4365HDDB#TRMPBF

LTC4365HDDB#TRMPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROTECT 8-DFN

4324

LTC3577EUFF-3#TRPBF

LTC3577EUFF-3#TRPBF

Analog Devices, Inc.

POWER SUPPLY MANAGEMENT CIRCUIT,

4938

MAX809TEXR+

MAX809TEXR+

Analog Devices, Inc.

MAX809 3-PIN MICROPROCESSOR RESE

3397

MAX6378UR46+

MAX6378UR46+

Analog Devices, Inc.

MAX6378 3-PIN, ULTRA-LOW-POWER V

2076

LTC4360ISC8-2#TRPBF

LTC4360ISC8-2#TRPBF

Analog Devices, Inc.

IC CTLR OVP 80V REV OVP SC-70-8

0

LTC3625EDE#TRPBF

LTC3625EDE#TRPBF

Analog Devices, Inc.

IC SUPERCAP CHARGER 1A 12DFN

0

LTC3554EUD#TRPBF

LTC3554EUD#TRPBF

Analog Devices, Inc.

IC USB POWER MANAGER 20UTQFN

0

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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