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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
VNQ830PTR-E

VNQ830PTR-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 28SO

391
VND5050AKTR-E

VND5050AKTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

0
L6377D

L6377D

STMicroelectronics

IC PWR SWITCH N-CHANNEL 1:1 14SO

334
VND7NV04TR-E

VND7NV04TR-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 DPAK

3018
L6370D

L6370D

STMicroelectronics

IC PWR SWITCH N-CHAN 1:1 PWRSO20

9832170
IPS4260LTR

IPS4260LTR

STMicroelectronics

IC PWR SWTCH P-CHAN 1:1 20HTSSOP

0
VNQ5E160K-E

VNQ5E160K-E

STMicroelectronics

IC PWR SWTCH N-CHAN 1:1 PWRSSO24

0
VNQ7040AYTR

VNQ7040AYTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO36

13
VND5050AJ-E

VND5050AJ-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO12

0
VN808TR-32-E

VN808TR-32-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO36

0
VN7007AHTR

VN7007AHTR

STMicroelectronics

IC PWR SWITCH N-CHAN 1:1 OCTAPAK

7386
L9733CNTR

L9733CNTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:8 PWRSSO28

0
VN920B5TR-E

VN920B5TR-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 P2PAK

2004
VNP35N07-E

VNP35N07-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 TO220AB

0
VNI8200XPTR-32

VNI8200XPTR-32

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO36

0
VN340SP-E

VN340SP-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO10

31
VND14NV04-E

VND14NV04-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 DPAK

6944
VND7030AJTR

VND7030AJTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO16

0
VN540-E

VN540-E

STMicroelectronics

IC PWR DRIVER 1:1 5PENTAWATT

28000
VNB35N07-E

VNB35N07-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 D2PAK

32

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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