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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
NX5P2924UKZ

NX5P2924UKZ

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 6WLCSP

618
MC33982CHFK

MC33982CHFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 16QFN

0
MC17XSF500EK-NXP

MC17XSF500EK-NXP

NXP Semiconductors

HIGH-SIDE SWITCH, 18V, PENTA 17M

42
MC06XS4200FK

MC06XS4200FK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 23PQFN

0
NX5P2090UKZ

NX5P2090UKZ

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 9WLCSP

12552
MC35XS3400DHFK

MC35XS3400DHFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:4 24PQFN

0
MC35XS3500DHFK

MC35XS3500DHFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:6 24PQFN

167
MC08XS6421EK

MC08XS6421EK

NXP Semiconductors

HIGH-SIDE SWITCH, 12V

34
NX20P3483UKAZ

NX20P3483UKAZ

NXP Semiconductors

IC PWR SWITCH 1:1 42WLCSP

3977
MC08XS6421CEKR2

MC08XS6421CEKR2

NXP Semiconductors

HIGH-SIDE SWITCH 12V DUAL 8MOHMS

0
NX3P190UK,012

NX3P190UK,012

NXP Semiconductors

IC PWR SWITCH HI SIDE LOG 4WLCSP

0
MC10XS3412JHFK

MC10XS3412JHFK

NXP Semiconductors

HIGH-SIDE SWITCH, 12V, DUAL 10MO

159
MC10XS3435DHFK

MC10XS3435DHFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 24PQFN MC10XS3435DHFK

3000
MC10XS6225BEKR2

MC10XS6225BEKR2

NXP Semiconductors

IC PWR SWITCH 32SOIC

1000
MC06XS4200BFKR2

MC06XS4200BFKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 23PQFN

0
MC40XSF500EK

MC40XSF500EK

NXP Semiconductors

HIGH-SIDE SWITCH, 12V

42
MC33984CHFK

MC33984CHFK

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:2 16QFN

0
NX5P2924BUKZ

NX5P2924BUKZ

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 6WLCSP

1915
MC22XS4200CEKR2

MC22XS4200CEKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 32SOIC

0
MC17XS6400EK

MC17XS6400EK

NXP Semiconductors

HIGH-SIDE SWITCH, 12V

0

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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