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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BTS6163DAUMA1

BTS6163DAUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO252-5

8890
PI5USB2546QZHEX

PI5USB2546QZHEX

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH N-CHAN 1:1 16TQFN

1549
TPS2001CDGKR

TPS2001CDGKR

Texas Instruments

CURRENT-LIMITED, POWER-DISTRIBUT

5978
BSP752TXUMA1

BSP752TXUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 PDSO-8

0
MIC5800YM

MIC5800YM

Roving Networks / Microchip Technology

IC PWR DRIVER BIPOLAR 1:1 14SOIC

398
TPS2069DGN

TPS2069DGN

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8MSOP

78
TLE7232GS

TLE7232GS

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

2105
BTS500851TMAATMA1

BTS500851TMAATMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO220-7

25713
TPS2069DDBVT

TPS2069DDBVT

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 SOT23-5

1571
MIC2562A-1YM

MIC2562A-1YM

Roving Networks / Microchip Technology

IC PWR SWITCH N-CHAN 3:2 14SOIC

4
MIC2027-2YWM-TR

MIC2027-2YWM-TR

Roving Networks / Microchip Technology

IC PWR SWITCH N-CH 2X1:2 16SOIC

0
BTT60501ERAXUMA1

BTT60501ERAXUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TDSO-14

0
TPS22951YFPR

TPS22951YFPR

Texas Instruments

TPS22951 5.3V, 0.6A, 565MOHM 600

0
VND5E050MCKTR-E

VND5E050MCKTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

0
VNQ500PEPTR-E

VNQ500PEPTR-E

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO12

450
TLE6288RAUMA2

TLE6288RAUMA2

IR (Infineon Technologies)

TLE6288 - CONSTANT CURRENT CONTR

857
TPS22946YZPR

TPS22946YZPR

Texas Instruments

IC PWR SWITCH P-CHAN 1:1 6DSBGA

33455
MIC2560-1YWM

MIC2560-1YWM

Roving Networks / Microchip Technology

IC PWR SWITCH N-CHAN 3:2 16SOIC

13
VB525SPTR-E

VB525SPTR-E

STMicroelectronics

IC PWR DRVR BIPOLAR 1:1 PWRSO10

0
ISP452HUMA1

ISP452HUMA1

IR (Infineon Technologies)

IC PWR SWTCH N-CHAN 1:1 SOT223-4

9285

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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