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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
VNQ500PEPTR-E

VNQ500PEPTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO12

450
VB525SPTR-E

VB525SPTR-E

STMicroelectronics

IC PWR DRVR BIPOLAR 1:1 PWRSO10

0
VND5E050JTR-E

VND5E050JTR-E

STMicroelectronics

IC PWR SWTCH N-CHAN 1:1 PWRSSO12

7429
VND7040AJTR

VND7040AJTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO16

0
VN751STR

VN751STR

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 8SO

14595
VN7003AHTR

VN7003AHTR

STMicroelectronics

IC PWR SWITCH N-CHAN 1:1 OCTAPAK

1923
VND7050AJ12TR

VND7050AJ12TR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO12

1135
VNQ810

VNQ810

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 28SO

0
VND5025AK-E

VND5025AK-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

0
VN750PEPTR-E

VN750PEPTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO12

0
L9848

L9848

STMicroelectronics

IC PWR DRIVER 1:8 28SO

106
IPS161H

IPS161H

STMicroelectronics

IC PWR SWTCH P-CHAN 1:1 PWRSSO12

1715
VN808CMTR-32-E

VN808CMTR-32-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO36

2770
VN5E050AJTR-E

VN5E050AJTR-E

STMicroelectronics

IC PWR SWTCH N-CHAN 1:1 PWRSSO12

0
VND5E008MYTR-E

VND5E008MYTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO36

0
TDE1737DP

TDE1737DP

STMicroelectronics

IC PWR DRIVER BIPOLAR 1:1 8DIP

491
ISO8200BQ

ISO8200BQ

STMicroelectronics

IC PWR DRIVER 1:1 32TFQFPN

235
L9333MD-TR

L9333MD-TR

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 20SOIC

3784
VN540SP-E

VN540SP-E

STMicroelectronics

IC PWR DRIVER 1:1 PWRSO10

154
VNQ600P-E

VNQ600P-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 28SO

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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