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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BTS51202EKAXUMA1

BTS51202EKAXUMA1

IR (Infineon Technologies)

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

0
BTS70302EPAXUMA1

BTS70302EPAXUMA1

IR (Infineon Technologies)

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

0
TLE7230RAUMA1

TLE7230RAUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:8 DSO-36

0
ITS4142NHUMA1

ITS4142NHUMA1

IR (Infineon Technologies)

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

1444
BTS4880RAUMA1

BTS4880RAUMA1

IR (Infineon Technologies)

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

0
BTS500402SFAXUMA2

BTS500402SFAXUMA2

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

136736
TLE75080EMHXUMA1

TLE75080EMHXUMA1

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
TLI4906L

TLI4906L

IR (Infineon Technologies)

TLI4906 - HALL SWITCH

19999
BTS3028SDLATMA1

BTS3028SDLATMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO252-3

3433
ITS640S2SHKSA1

ITS640S2SHKSA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

10046
ITS612N1HKSA1

ITS612N1HKSA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

21060
BTS5016SDAAUMA1

BTS5016SDAAUMA1

IR (Infineon Technologies)

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

0
BTS716GXUMA1

BTS716GXUMA1

IR (Infineon Technologies)

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

975
BTS3018TCATMA1

BTS3018TCATMA1

IR (Infineon Technologies)

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

1385
BTS50121EKBXUMA1

BTS50121EKBXUMA1

IR (Infineon Technologies)

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

0
TLE75008EMDXUMA2

TLE75008EMDXUMA2

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
BTS118D

BTS118D

IR (Infineon Technologies)

BTS118 - HITFET, AUTOMOTIVE SMAR

0
BTS56033LBAAUMA1

BTS56033LBAAUMA1

IR (Infineon Technologies)

SPOC PLUS 12V SPI POWER CONTROLL

522754
BTF3125EJXUMA1

BTF3125EJXUMA1

IR (Infineon Technologies)

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

5942
BTS500551TMBAKSA1

BTS500551TMBAKSA1

IR (Infineon Technologies)

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

237

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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