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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
VND830SP-E

VND830SP-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO10

59
ST890DTR

ST890DTR

STMicroelectronics

IC PWR SWITCH P-CHAN 1:1 8DFN

3740
VNQ5050KTR-E

VNQ5050KTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

7649
STMPS2151MTR

STMPS2151MTR

STMicroelectronics

IC PWR SWITCH N-CHANNEL 1:1 8SO

4184
VNQ690SP-E

VNQ690SP-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO10

373
VND5N07-E

VND5N07-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 DPAK

9807
VND5004ATR-E

VND5004ATR-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 24PQFN

0
VN920SPTR-E

VN920SPTR-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 PWRSO10

0
VND10N06-E

VND10N06-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 DPAK

420
VND810PTR-E

VND810PTR-E

STMicroelectronics

IC PWR SWITCH N-CHANNEL 1:1 16SO

2209
VNQ5160K-E

VNQ5160K-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

0
VN5E025MJTR-E

VN5E025MJTR-E

STMicroelectronics

IC PWR SWTCH N-CHAN 1:1 PWRSSO12

2612
ST890BDR

ST890BDR

STMicroelectronics

IC PWR SWITCH P-CHANNEL 1:1 8SO

1391
VN820B5-E

VN820B5-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 P2PAK

757
VN5E016AFHTR-E

VN5E016AFHTR-E

STMicroelectronics

IC DVR SWITCH HI SIDE SGL HPAK-6

0
E-L9338MD/TR

E-L9338MD/TR

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 20SO

1840
VND14NV04TR-E

VND14NV04TR-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 DPAK

0
VN5E160ASOTR-E

VN5E160ASOTR-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 16SO

0
TDE1898CFP

TDE1898CFP

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 20SO

0
VND7020AJTR

VND7020AJTR

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO16

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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