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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BTS5240GXUMA1

BTS5240GXUMA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

3000
BTS5482SFXUMA2

BTS5482SFXUMA2

IR (Infineon Technologies)

SPOC SPI POWER CONTROLLER

0
BTS5016-1EKB

BTS5016-1EKB

IR (Infineon Technologies)

BTS5016 - PROFET - SMART HIGH SI

0
BTS70041EPPXUMA1

BTS70041EPPXUMA1

IR (Infineon Technologies)

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

0
BTS70082EPAXUMA1

BTS70082EPAXUMA1

IR (Infineon Technologies)

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

0
BTS54220LBFAUMA1

BTS54220LBFAUMA1

IR (Infineon Technologies)

SPOC SPI POWER CONTROLLER

29645
BTS52001EJAXUMA1

BTS52001EJAXUMA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

0
AUIPS7121R

AUIPS7121R

IR (Infineon Technologies)

AUIPS7121 - PROFET - SMART HIGH

2620
AUIPS2051LTR

AUIPS2051LTR

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 SOT223

0
AUIR33402STRL

AUIR33402STRL

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

123
BTS5120-2EKA

BTS5120-2EKA

IR (Infineon Technologies)

BTS5120 - PROFET - SMART HIGH SI

0
BTS5215LAUMA1

BTS5215LAUMA1

IR (Infineon Technologies)

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

0
IPS521GTR

IPS521GTR

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
BTS441RGATMA1

BTS441RGATMA1

IR (Infineon Technologies)

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

24
AUIPS1011R

AUIPS1011R

IR (Infineon Technologies)

AUIPS1011 - HITFET, AUTOMOTIVE S

2850
IPS5451S

IPS5451S

IR (Infineon Technologies)

IPS5451 - PROFET - SMART HIGH SI

9800
BTS555E3146HKSA1

BTS555E3146HKSA1

IR (Infineon Technologies)

SMART HIGHSIDE POWER SWITCH

120950
BTS621L1E3128ABUMA1

BTS621L1E3128ABUMA1

IR (Infineon Technologies)

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

668
BTS500151TMAAKSA1

BTS500151TMAAKSA1

IR (Infineon Technologies)

BTS50015 - PROFET - SMART HIGH S

1975
AUIPS1025RTRL

AUIPS1025RTRL

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

5492

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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