PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
VN750PT-E

VN750PT-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 PPAK

0

STCC2540IQTR

STCC2540IQTR

STMicroelectronics

IC PWR SWITCH N-CH 1:1 16VFQFPN

28054

VND5E025ASTR-E

VND5E025ASTR-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 16SO

0

L9825

L9825

STMicroelectronics

IC PWR DRIVER N-CHAN 1:8 PWRSO20

0

VNQ5E160MKTR-E

VNQ5E160MKTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

0

VNQ5E160AKTR-E

VNQ5E160AKTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

0

VNQ660SP-E

VNQ660SP-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO10

0

L9395

L9395

STMicroelectronics

IC DRIVER SMART PWR POWERSO

0

TDE1707CFPT

TDE1707CFPT

STMicroelectronics

IC DRIVER

0

L9374LF

L9374LF

STMicroelectronics

IC PWR TRAIN & SAFETY PWRSO36

0

TDE1707CFP

TDE1707CFP

STMicroelectronics

IC DRIVER

0

L9753CAXPTR

L9753CAXPTR

STMicroelectronics

IC PWR DRIVER N-CHANNEL 3:8

0

L9026-YO-TR

L9026-YO-TR

STMicroelectronics

CONFIGURABLE MULTI CHANNEL RELAY

0

ISO8200AQ

ISO8200AQ

STMicroelectronics

IC PWR DRIVER ISOL 1:1 32TFQFPN

0

L9395-TR

L9395-TR

STMicroelectronics

IC DRIVER SMART PWR POWERSO

0

VN808CMSTR

VN808CMSTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO36

0

VN7016AJEPTR

VN7016AJEPTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO16

0

VND5E012MYTR-E

VND5E012MYTR-E

STMicroelectronics

IC PWR SWTCH N-CHAN 1:1 PWRSSO36

0

L9374TRLF

L9374TRLF

STMicroelectronics

IC PWR DRIVER N-CHAN 1:4 PWRSO36

0

VN5E025AJ-E

VN5E025AJ-E

STMicroelectronics

IC PWR SWTCH N-CHAN 1:1 PWRSSO12

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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