PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
MAX6834GXRD0+

MAX6834GXRD0+

Analog Devices, Inc.

MAX6834 ULTRA-LOW-VOLTAGE VOLTAG

1587

LT4430IS6#TRPBF

LT4430IS6#TRPBF

Analog Devices, Inc.

IC OPTOCOUPLER GATE DRVR SOT23-6

0

MAX9960BCTM

MAX9960BCTM

Analog Devices, Inc.

MAX9960 DUAL-FLASH-PIN ELECTRONI

2521

LTC4125EUFD#PBF

LTC4125EUFD#PBF

Analog Devices, Inc.

5W AUTORESONANT WIRELESS POWER T

44

MAX6845UKD3+

MAX6845UKD3+

Analog Devices, Inc.

MAX6845 ULTRA-LOW-VOLTAGE UP RES

2080

LTC4365HTS8-1#TRPBF

LTC4365HTS8-1#TRPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROT TSOT23-8

0

LTC4365ITS8#TRMPBF

LTC4365ITS8#TRMPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROT TSOT23-8

0

MAX6328XR31+

MAX6328XR31+

Analog Devices, Inc.

MAX6328 3-PIN, ULTRA-LOW-POWER S

20808

MAX6309UK31D3+

MAX6309UK31D3+

Analog Devices, Inc.

MAX6309 5-PIN, MULTIPLE-INPUT, P

2558

MAX811SEUS

MAX811SEUS

Analog Devices, Inc.

POWER SUPPLY SUPPORT CIRCUIT, FI

6078

MAX6324AUT46+

MAX6324AUT46+

Analog Devices, Inc.

MAX6324 MICROPROCESSOR SUPERVISO

1082

LT3420EDD-1#PBF

LT3420EDD-1#PBF

Analog Devices, Inc.

IC PHOTOFLASH CAP CHARGER 10-DFN

0

LTC4361HTS8-2#TRMPBF

LTC4361HTS8-2#TRMPBF

Analog Devices, Inc.

IC OVP/OCP PROTECTION CTLR 8TSOT

450

MAX6316LUK29CX+

MAX6316LUK29CX+

Analog Devices, Inc.

MAX6316 5-PIN MICROPROCESSOR SUP

4484

MAX17018CATL/V+

MAX17018CATL/V+

Analog Devices, Inc.

MAX1701 1-CELL TO 3-CELL, HIGH-P

51650

LTC3108EDE#TRPBF

LTC3108EDE#TRPBF

Analog Devices, Inc.

IC DCDC CONV STP-UP LV 12DFN

0

MAX6762TALRD3

MAX6762TALRD3

Analog Devices, Inc.

MAX6762 LOW-POWER, SINGLE/DUAL-V

2402

LT3468ES5#TRMPBF

LT3468ES5#TRMPBF

Analog Devices, Inc.

IC PHOTOFLASH CAP CHRGR TSOT23-5

147

MAX6384XS31D5+

MAX6384XS31D5+

Analog Devices, Inc.

MAX6384 SINGLE LOW-VOLTAGE, LOW-

137

LTC4362CDCB-2#TRPBF

LTC4362CDCB-2#TRPBF

Analog Devices, Inc.

IC OVERVOLT/OVERCUR PROT 8-DFN

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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