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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BTS133NKSA1

BTS133NKSA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

3400
AUIR3315S

AUIR3315S

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
BTS56033LBBAUMA1

BTS56033LBBAUMA1

IR (Infineon Technologies)

SPOC PLUS 12V SPI POWER CONTROLL

67782
BTS612N1E3128ABUMA1

BTS612N1E3128ABUMA1

IR (Infineon Technologies)

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

767
AUIPS6041GTR

AUIPS6041GTR

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
AUIPS7125RTRL

AUIPS7125RTRL

IR (Infineon Technologies)

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

0
BTF3050EJXUMA1

BTF3050EJXUMA1

IR (Infineon Technologies)

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

0
ITS4060S-SJ-N

ITS4060S-SJ-N

IR (Infineon Technologies)

ITS4060 - PROFET - SMART HIGH SI

12148
AUIPS6031S

AUIPS6031S

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

2619
BTS500501EGAAUMA1

BTS500501EGAAUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 DSO-12

0
AUIPS6021S

AUIPS6021S

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

644
BTS409L1E3062ABUMA1

BTS409L1E3062ABUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO263-5

1909
BTS50070-1TMA

BTS50070-1TMA

IR (Infineon Technologies)

AUTOMOTIVE HIGH SIDE SWITCH

8000
AUIPS7145R

AUIPS7145R

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 DPAK

0
BTS3205G

BTS3205G

IR (Infineon Technologies)

BTS3205 - HITFET, AUTOMOTIVE SMA

8644
AUIPS1041RTRL

AUIPS1041RTRL

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

3116
BTT60301ERAXUMA1

BTT60301ERAXUMA1

IR (Infineon Technologies)

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

0
BTS710336ESAXUMA1

BTS710336ESAXUMA1

IR (Infineon Technologies)

SPOC

0
AUIR3330S

AUIR3330S

IR (Infineon Technologies)

AUIR3330 - PROFET - SMART HIGH S

0
AUIPS7125R

AUIPS7125R

IR (Infineon Technologies)

AUIPS7125 - PROFET - SMART HIGH

216

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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