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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
MC33879APEKR2

MC33879APEKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:4 32SOIC

1
MC33882PVW

MC33882PVW

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 30HSOP

0
MC25XS6300BEK

MC25XS6300BEK

NXP Semiconductors

IC PWR SWITCH HIGH SIDE 32SOIC

0
MC07XS3200EK

MC07XS3200EK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:2 32HSOP

0
MC07XSG517EKR2

MC07XSG517EKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 54HSOP

0
NX3P191UK,012

NX3P191UK,012

NXP Semiconductors

IC PWR SWITCH HI SIDE LOG 4WLCSP

0
MC33988CHFKR2

MC33988CHFKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:2 16QFN

0
MC07XS3200EKR2

MC07XS3200EKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:2 32HSOP

0
NX5P1100UKZ

NX5P1100UKZ

NXP Semiconductors

IC PWR SWITCH 1:1 12WLCSP

2337
MC16XSD200FKR2

MC16XSD200FKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 23PQFN

0
MC08XS6421BEK

MC08XS6421BEK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 32HSOP

0
MC06XS3517AFK

MC06XS3517AFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:5 24PQFN

0
MC33879APEK

MC33879APEK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:4 32SOIC

0
MC10XSD200FK

MC10XSD200FK

NXP Semiconductors

HIGH-SIDE SWITCH, 36V, DUAL 10MO

840
MC09XS3400AFK

MC09XS3400AFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 24PQFN

427
MC17XS6400CEK

MC17XS6400CEK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 32SOIC

0
MC50XS4200CEKR2

MC50XS4200CEKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 32SOIC

0
NX5P1000UKZ

NX5P1000UKZ

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 12WLCSP

0
MC35XS3500DHFKR2

MC35XS3500DHFKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:6 24PQFN

0
NX5P3201CUKAZ

NX5P3201CUKAZ

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 30WLCSP

3980

PMIC - Power Distribution Switches, Load Drivers

1. Overview

Power Management Integrated Circuits (PMICs) featuring Power Distribution Switches and Load Drivers are critical components in modern electronic systems. These devices manage power routing, load control, and protection functions in applications ranging from portable devices to industrial equipment. Power Distribution Switches handle voltage/current path selection, while Load Drivers provide controlled driving capability for high-current loads. Their integration improves system efficiency, reduces component count, and enhances reliability.

2. Main Types & Functional Classification

TypeFunctional CharacteristicsApplication Examples
Load SwitchesLow RDS(on), fast turn-on/off, inrush current controlSmartphones, laptops, servers
Distribution SwitchesMulti-channel power path management, fault isolationAutomotive systems, industrial PLCs
Smart Load DriversIntegrated FETs + protection logic, current sensingRobotics, motor controls, LED lighting
Hot Swap ControllersControlled startup, overcurrent/voltage protectionData center servers, telecom equipment

3. Structure & Composition

Typical components include:

  • Power MOSFETs (usually NMOS/PMOS) with low on-resistance
  • Gate drivers and control logic circuits
  • Protection modules (OCP, OVP, OTP, UVLO)
  • Current sensing elements (shunt resistors or amplifiers)
  • Thermal management structures (heat spreaders, thermal vias)

Common packaging: QFN, TSSOP, BGA with exposed thermal pads

4. Key Technical Specifications

ParameterDescriptionImportance
RDS(on)On-state resistance (1-50 m range)Directly affects conduction loss
IMAXMaximum continuous current (0.5-10A typical)Determines load capacity
VSUPPLYOperating voltage range (2.7-40V typical)System compatibility factor
tON/OFFSwitching transition time (1-100 s)Affects EMI and power efficiency
Quiescent CurrentStandby power consumption ( A range)Battery life consideration

5. Application Fields

  • Consumer Electronics: Smartphones (display/backlight drivers), notebooks (peripheral power control)
  • Automotive: Electric vehicle power distribution, ADAS sensor power management
  • Industrial: PLCs, motor drives, test equipment
  • Telecom/Datacom: Server power rails, PoE systems, base stations
  • Medical: Portable diagnostic devices, imaging equipment

6. Leading Manufacturers & Products

ManufacturerProduct SeriesKey Features
Texas InstrumentsTPS229xx family18m RDS(on), 6A rating, load current monitoring
STMicroelectronicsVN7000 seriesSmart high-side switches, automotive qualified
InfineonBTS7xx seriesIntegrated diagnostics, 24V operation
ON SemiconductorNCP380 series40V tolerant, fast overcurrent protection

7. Selection Recommendations

Key consideration factors:

  1. Current/voltage requirements with safety margins (>20% over spec)
  2. Thermal performance: Junction-to-ambient thermal resistance
  3. Protection features matching application environment
  4. Control interface compatibility (GPIO, I2C, PWM)
  5. Package size vs. board space constraints

Case Study: For a 12V/3A motor driver in an industrial robot, select a device with:

  • RDS(on) < 30m to limit loss to <0.27W
  • Operating temperature range -40 C to 125 C
  • Integrated current sensing for feedback control

8. Industry Trends

  • Integration of GaN/SiC FETs for higher efficiency (2024-2030)
  • Development of bidirectional switches for energy recovery systems
  • Increasing adoption of digital control interfaces (PMBus compliance)
  • Tighter functional safety compliance (ISO 26262 for automotive)
  • Advanced thermal packaging (double-sided cooling, copper pillar technology)
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