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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TLE7236SEXUMA1

TLE7236SEXUMA1

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:8 DSO-20

0
BTS70401EPAXUMA1

BTS70401EPAXUMA1

IR (Infineon Technologies)

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

0
ITS4075QEPDXUMA1

ITS4075QEPDXUMA1

IR (Infineon Technologies)

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

2375
BTS730CT

BTS730CT

IR (Infineon Technologies)

FLUORESCENT LIGHT CONTROLLER

457
BTS54220LBBAUMA1

BTS54220LBBAUMA1

IR (Infineon Technologies)

SPOC SPI POWER CONTROLLER

0
BTS500551TMCATMA1

BTS500551TMCATMA1

IR (Infineon Technologies)

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

0
IPS521

IPS521

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

3800
AUIPS1011

AUIPS1011

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
AUIR3313STRL

AUIR3313STRL

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:1 D2PAK

5702
AUIPS2041R

AUIPS2041R

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

3043
BTS5234GXUMA1

BTS5234GXUMA1

IR (Infineon Technologies)

BTS5234G - HALF-BRIDGE BASED PER

2000
BTS117E3045A

BTS117E3045A

IR (Infineon Technologies)

AUTOMOTIVELOW-SIDE SWITCH

0
ITS4200SMENHUMA1

ITS4200SMENHUMA1

IR (Infineon Technologies)

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

2444
BTS462TATMA1

BTS462TATMA1

IR (Infineon Technologies)

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

8212
BTS5012SDA

BTS5012SDA

IR (Infineon Technologies)

BTS5012 - PROFET - SMART HIGH SI

1952
AUIPS1011RTRL

AUIPS1011RTRL

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

85950
BTS3046SDRATMA1

BTS3046SDRATMA1

IR (Infineon Technologies)

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

14198
AUIPS6021RTRL

AUIPS6021RTRL

IR (Infineon Technologies)

AUTOMOTIVE HS 30MOHM 40V

67276
BSP76E6433HUMA1

BSP76E6433HUMA1

IR (Infineon Technologies)

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

0
AUIPS2031R

AUIPS2031R

IR (Infineon Technologies)

INTELLIGENT LOW SIDE SWITCH

37

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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