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PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
MAX6866UK29D3S+

MAX6866UK29D3S+

Analog Devices, Inc.

MAX6866 NANOPOWER MICROPROCESSOR

631
MAX6780LTA+

MAX6780LTA+

Analog Devices, Inc.

MAX6780 LOW-POWER, 1PERCENT-ACCU

686
MAX6384XS44D3+

MAX6384XS44D3+

Analog Devices, Inc.

MAX6384 SINGLE LOW-VOLTAGE, LOW-

391
MAX253ESA

MAX253ESA

Analog Devices, Inc.

DRIVER FOR RS-48R INTERFACE

150
MAX6359MSUT+

MAX6359MSUT+

Analog Devices, Inc.

MAX6359 DUAL-VOLTAGE MICROPROCES

1190
MAX845EUA

MAX845EUA

Analog Devices, Inc.

ISOLATED TRANSFORMER DRIVER

4742
LTC4425IMSE#PBF

LTC4425IMSE#PBF

Analog Devices, Inc.

IC SUPERCAP CHARGER 12-MSOP

181
LTC3226EUD#TRPBF

LTC3226EUD#TRPBF

Analog Devices, Inc.

IC 2CELL SUPERCAP CHARGE 16QFN

3028
MAX6306UK31D1+T

MAX6306UK31D1+T

Analog Devices, Inc.

POWER SUPPLY SUPPORT CIRCUIT, FI

2500
LT3420EMS-1#TRPBF

LT3420EMS-1#TRPBF

Analog Devices, Inc.

IC PHOTOFLASH CAP CHARGER 10MSOP

0
MAX6400BS22+

MAX6400BS22+

Analog Devices, Inc.

MAX6400 UP SUPERVISORY CIRCUIT I

1903
ADP3405ARU-REEL7

ADP3405ARU-REEL7

Analog Devices, Inc.

IC GSM PWR MGMT SYST 28TSSOP

5980
MAX8664BEEP+

MAX8664BEEP+

Analog Devices, Inc.

MAX8664 LOW-COST, DUAL-OUTPUT, S

740
LTC4365HDDB#TRPBF

LTC4365HDDB#TRPBF

Analog Devices, Inc.

IC OVERVOLTAGE PROTECT 8-DFN

0
LTC4367IMS8-1#PBF

LTC4367IMS8-1#PBF

Analog Devices, Inc.

SUPPLY PROTECTION CONTROLLER

3257
MAX6717UKLTD3+

MAX6717UKLTD3+

Analog Devices, Inc.

MAX6717 DUAL/TRIPLE, ULTRA-LOW-V

3251
MAX6822WUK+

MAX6822WUK+

Analog Devices, Inc.

MAX6822 LOW-VOLTAGE MICROPROCES

601
MAX6323CUT29+

MAX6323CUT29+

Analog Devices, Inc.

MAX6323 MICROPROCESSOR SUPERVISO

2747
AD53041KRP

AD53041KRP

Analog Devices, Inc.

HIGH SPEED ACTIVE LOAD

3746
LTC4361CTS8-1#TRMPBF

LTC4361CTS8-1#TRMPBF

Analog Devices, Inc.

IC OVERVOLTAGE/CUR PROT TSOT23-8

590

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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