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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BSP452HUMA1

BSP452HUMA1

IR (Infineon Technologies)

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

20919
BTS500801TEAAUMA1

BTS500801TEAAUMA1

IR (Infineon Technologies)

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

6236
BTS426L1E3062A

BTS426L1E3062A

IR (Infineon Technologies)

AUTOMOTIVE SMART HIGH SIDE SWITC

146
BTS40K21EJCXUMA1

BTS40K21EJCXUMA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

13966
AUIPS6044GTR

AUIPS6044GTR

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

10500
AUIPS7121RTRL

AUIPS7121RTRL

IR (Infineon Technologies)

IC PWR DRIVER N-CHANNEL 1:1 DPAK

0
ITS4140NHUMA1

ITS4140NHUMA1

IR (Infineon Technologies)

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

8267
AUIPS7221RTRL

AUIPS7221RTRL

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 DPAK

184
BSP742RIXUMA1

BSP742RIXUMA1

IR (Infineon Technologies)

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

64
TLE75602EMDXUMA1

TLE75602EMDXUMA1

IR (Infineon Technologies)

TLE75602 - SPIDER - SPI DRIVER F

0
BTS70121EPAXUMA1

BTS70121EPAXUMA1

IR (Infineon Technologies)

PROFET

0
AUIPS7111STRL

AUIPS7111STRL

IR (Infineon Technologies)

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

0
BTS4130QGAXUMA1

BTS4130QGAXUMA1

IR (Infineon Technologies)

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

12000
BTS54220LBEAUMA1

BTS54220LBEAUMA1

IR (Infineon Technologies)

SPOC SPI POWER CONTROLLER

8409
BTS307E3062ABUMA1

BTS307E3062ABUMA1

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

12349
BTS3134DATMA1

BTS3134DATMA1

IR (Infineon Technologies)

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

6599
BTS426L1E3062ABUMA1

BTS426L1E3062ABUMA1

IR (Infineon Technologies)

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

214
ISO1H811GAUMA1

ISO1H811GAUMA1

IR (Infineon Technologies)

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

1114
BTS3408GXUMA2

BTS3408GXUMA2

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
BTS3118NHUMA1

BTS3118NHUMA1

IR (Infineon Technologies)

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

27260

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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