PMIC - Power Management - Specialized

Image Part Number Description / PDF Quantity Rfq
MAX6759UTTD0+

MAX6759UTTD0+

Analog Devices, Inc.

MAX6759 LOW-POWER, SINGLE-VOLTAG

4219

LTC4425IDD#TRPBF

LTC4425IDD#TRPBF

Analog Devices, Inc.

IC SUPERCAP CHRGR DIO/MON 12DFN

0

LT3585EDDB-0#TRMPBF

LT3585EDDB-0#TRMPBF

Analog Devices, Inc.

PHOTOFLASH CAPACITOR CHARGERS

0

MAX821UUS+

MAX821UUS+

Analog Devices, Inc.

MAX821 4-PIN MICROPROCESSOR VOLT

2850

MAX6381LT29D3+

MAX6381LT29D3+

Analog Devices, Inc.

MAX6381 SINGLE LOW-VOLTAGE, LOW-

1600

MAX6808US32-T

MAX6808US32-T

Analog Devices, Inc.

MAX6808 VOLTAGE DETECTOR

7500

MAX6421XS16+

MAX6421XS16+

Analog Devices, Inc.

MAX6421 LOW-POWER, SOT MICROPROC

2231

MAX6718UKSYD3+T

MAX6718UKSYD3+T

Analog Devices, Inc.

POWER SUPPLY SUPPORT CIRCUIT, FI

2500

LT8550EUKG#TRPBF

LT8550EUKG#TRPBF

Analog Devices, Inc.

MULTIPHASE BUCK CONVERTER EXPAND

0

MAX6829TIUT+

MAX6829TIUT+

Analog Devices, Inc.

MAX6829 DUAL ULTRA-LOW-VOLTAGE M

11662

MAX17007BGTI+

MAX17007BGTI+

Analog Devices, Inc.

DUAL SWITCHING CONTROLLER, CURRE

0

LTC3555EUFD-3#TRPBF

LTC3555EUFD-3#TRPBF

Analog Devices, Inc.

IC USB POWER MANAGER 28-QFN

0

LTC3625IDE#TRPBF

LTC3625IDE#TRPBF

Analog Devices, Inc.

IC SUPERCAP CHARGER 1A 12DFN

0

MAX8685DETA+

MAX8685DETA+

Analog Devices, Inc.

XENON PHOTOFLASH CHARGER

3558

MAX6761TALAD3

MAX6761TALAD3

Analog Devices, Inc.

MAX6761 LOW-POWER, SINGLE/DUAL-V

2301

MAX6703LKA+

MAX6703LKA+

Analog Devices, Inc.

MAX6703 LOW-VOLTAGE, MICROPROCES

169

LTC3625EDE-1#PBF

LTC3625EDE-1#PBF

Analog Devices, Inc.

IC SUPERCAP CHARGER 1A 12DFN

235

LT3585EDDB-1#TRMPBF

LT3585EDDB-1#TRMPBF

Analog Devices, Inc.

IC CHARGER PHOTOFLASH 10-DFN

0

LT3420EMS#PBF

LT3420EMS#PBF

Analog Devices, Inc.

IC PHOTOFLASH CAP CHARGER 10MSOP

536

MAX6347XR44+

MAX6347XR44+

Analog Devices, Inc.

MAX6347 3-PIN, ULTRA-LOW-POWER S

614

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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