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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BTF500601TEAAUMA1

BTF500601TEAAUMA1

IR (Infineon Technologies)

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

207
BTS70021EPPXUMA1

BTS70021EPPXUMA1

IR (Infineon Technologies)

IC PWR SWTCH N-CHAN 1:1 TSDSO-14

0
TLE75008ESDXUMA1

TLE75008ESDXUMA1

IR (Infineon Technologies)

IC PWR DRVR N-CHAN 1:8 TSDSO-24

0
BSP77E6433HUMA1

BSP77E6433HUMA1

IR (Infineon Technologies)

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

9101
BTS3410GXUMA1

BTS3410GXUMA1

IR (Infineon Technologies)

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

0
AUIPS7142GTR

AUIPS7142GTR

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

24800
BTS4140NHUMA1

BTS4140NHUMA1

IR (Infineon Technologies)

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

0
BTS462TAKSA1

BTS462TAKSA1

IR (Infineon Technologies)

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

0
ITS42K5DLDFXUMA1

ITS42K5DLDFXUMA1

IR (Infineon Technologies)

IC PWR SWITCH P-CHAN 1:1 TSON10

5000
BTS4141NHUMA1

BTS4141NHUMA1

IR (Infineon Technologies)

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

15546
ISO1H815GAUMA1

ISO1H815GAUMA1

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:1 DSO-36

408
BTS133TCBUMA1

BTS133TCBUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO263-3

1328
TLE75080ESDXUMA1

TLE75080ESDXUMA1

IR (Infineon Technologies)

IC PWR DRVR N-CHAN 1:8 TSDSO-24

0
BTS3050EJXUMA1

BTS3050EJXUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 8TDSO

2521
BTS50451EJAXUMA1

BTS50451EJAXUMA1

IR (Infineon Technologies)

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

0
AUIPS1031

AUIPS1031

IR (Infineon Technologies)

AUIPS1031 - HITFET, AUTOMOTIVE S

2300
AUIPS7091

AUIPS7091

IR (Infineon Technologies)

AUIPS7091 - PROFET - SMART HIGH

1115
IPS5451

IPS5451

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

3984
BTS409L1E3062A

BTS409L1E3062A

IR (Infineon Technologies)

AUTOMOTIVE SMART HIGH SIDE SWITC

1216
AUIR3316STRL

AUIR3316STRL

IR (Infineon Technologies)

LATCH BASED PERIPHERAL DRIVER, 1

125927

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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