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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TLE8104EXUMA2

TLE8104EXUMA2

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 DSO-20

0
AUIPS7141R

AUIPS7141R

IR (Infineon Technologies)

AUIPS7141 - BUFFER/INVERTER BASE

0
BTS133E3064NK

BTS133E3064NK

IR (Infineon Technologies)

AUTOMOTIVELOW-SIDE SWITCH

0
BTS133E3064

BTS133E3064

IR (Infineon Technologies)

AUTOMOTIVELOW-SIDE SWITCH

3200
BSP762TXUMA1

BSP762TXUMA1

IR (Infineon Technologies)

BSP762 - PROFET - SMART HIGH SID

18184
BTT60201EKAXUMA1

BTT60201EKAXUMA1

IR (Infineon Technologies)

SMART HIGH-SIDE POWER SWITCH

0
BTS6142DAUMA1

BTS6142DAUMA1

IR (Infineon Technologies)

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

4901
AUIPS7081STRL

AUIPS7081STRL

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 D2PAK-5

3211
BTS5045-2EKA

BTS5045-2EKA

IR (Infineon Technologies)

BTS5045 - PROFET - SMART HIGH SI

0
BTS149NKSA1

BTS149NKSA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

63070
AUIPS6021R

AUIPS6021R

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

26994
BSP78E6327

BSP78E6327

IR (Infineon Technologies)

POWER SWITCH SMART LOW

330
BTS500801EGAAUMA1

BTS500801EGAAUMA1

IR (Infineon Technologies)

BTS50080 - PROFET - SMART HIGH S

2000
AUIPS1031R

AUIPS1031R

IR (Infineon Technologies)

AUIPS1031 - HITFET, AUTOMOTIVE S

6839
BTS500151TADATMA2

BTS500151TADATMA2

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO263-7

0
TLE6228GPAUMA2

TLE6228GPAUMA2

IR (Infineon Technologies)

SMART QUAD LOW-SIDE SWITCH

0
AUIR3315STRL

AUIR3315STRL

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:1 D2PAK

0
BTS72002EPCXUMA1

BTS72002EPCXUMA1

IR (Infineon Technologies)

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

0
BTS54040LBBAUMA1

BTS54040LBBAUMA1

IR (Infineon Technologies)

SPOC SPI POWER CONTROLLER

25776
BTS4142NHUMA1

BTS4142NHUMA1

IR (Infineon Technologies)

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

1075

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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