PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
LTC3127EDD#TRPBF

LTC3127EDD#TRPBF

Analog Devices, Inc.

IC DCDC CONV BUCK BOOST 10DFN

1074

LTC2971CY-2#PBF

LTC2971CY-2#PBF

Analog Devices, Inc.

2-CHANNEL HIGH VOLTAGE PMBUS POW

0

LTC2971IY-3#PBF

LTC2971IY-3#PBF

Analog Devices, Inc.

2-CHANNEL HIGH VOLTAGE PMBUS POW

0

MAX6861UK225+

MAX6861UK225+

Analog Devices, Inc.

MAX6861 NANOPOWER MICROPROCESSOR

5678

MAX6335US20D3+

MAX6335US20D3+

Analog Devices, Inc.

MAX6335 4-PIN, ULTRA-LOW-VOLTAGE

2475

MAX6835VXSD3+

MAX6835VXSD3+

Analog Devices, Inc.

MAX6835 ULTRA-LOW-VOLTAGE VOLTAG

2109

LTC3108EDE-1#TRPBF

LTC3108EDE-1#TRPBF

Analog Devices, Inc.

IC CONV DC/DC PWR MANAGER 12DFN

0

ADP2450ASTZ-2-R7

ADP2450ASTZ-2-R7

Analog Devices, Inc.

INDUSTRIAL CIRCUIT BREAKER PMU

0

LTC2971IY#PBF

LTC2971IY#PBF

Analog Devices, Inc.

2-CHANNEL HIGH VOLTAGE PMBUS POW

0

MAX6377UR23+

MAX6377UR23+

Analog Devices, Inc.

MAX6377 3-PIN, ULTRA-LOW-POWER V

1009

MAX6705TKA+

MAX6705TKA+

Analog Devices, Inc.

MAX6705 LOW-VOLTAGE, MICROPROCES

282

MAX6361PUT44+

MAX6361PUT44+

Analog Devices, Inc.

MAX6361 LOW-POWER MICROPROCESSO

781

LTC4425EDD#PBF

LTC4425EDD#PBF

Analog Devices, Inc.

IC SUPERCAP CHARGER 12-DFN

47

MAX6869UK16D1S+

MAX6869UK16D1S+

Analog Devices, Inc.

MAX6869 NANOPOWER MICROPROCESSOR

488

MAX6733UTSYD3+T

MAX6733UTSYD3+T

Analog Devices, Inc.

POWER SUPPLY MANAGEMENT CIRCUIT,

2500

MAX749EPA

MAX749EPA

Analog Devices, Inc.

DIGITALLY ADJUSTABLE LCD BIAS

2119

LTC4367HMS8-1#PBF

LTC4367HMS8-1#PBF

Analog Devices, Inc.

SUPPLY PROTECTION CONTROLLER

1885

LTC3555IUFD-3#PBF

LTC3555IUFD-3#PBF

Analog Devices, Inc.

IC USB POWER MANAGER 28-QFN

0

MAX6444US46L+

MAX6444US46L+

Analog Devices, Inc.

MAX6444 UP RESET CIRCUITS WITH L

969

LTC4365CDDB#TRMPBF

LTC4365CDDB#TRMPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROTECT 8-DFN

3146

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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