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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BTC300101TAAATMA1

BTC300101TAAATMA1

IR (Infineon Technologies)

BUFFER/INVERTER PERIPHL DRIVER

6650
TLE75620ESTXUMA1

TLE75620ESTXUMA1

IR (Infineon Technologies)

IC PWR DRVR N-CHAN 1:8 TSDSO-24

0
BTS41K0S-ME-N

BTS41K0S-ME-N

IR (Infineon Technologies)

BTS41K0 - PROFET - SMART HIGH SI

1735
ISP752RFUMA1

ISP752RFUMA1

IR (Infineon Technologies)

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

0
TLE7239SLXUMA1

TLE7239SLXUMA1

IR (Infineon Technologies)

SPI DRIVER FOR RELAY CONTROL

12500
BTT60301EKAXUMA1

BTT60301EKAXUMA1

IR (Infineon Technologies)

SMART HIGH-SIDE POWER SWITCH

0
IPS1041RTRLPBF

IPS1041RTRLPBF

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 DPAK

3810
BTS428L2ATMA1

BTS428L2ATMA1

IR (Infineon Technologies)

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

8306
BTS40K21ENCXUMA1

BTS40K21ENCXUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 8DSO

0
BTS500601TEAAUMA2

BTS500601TEAAUMA2

IR (Infineon Technologies)

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

12043
BTS5014SDAAUMA1

BTS5014SDAAUMA1

IR (Infineon Technologies)

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

13734
BTS52462LAUMA1

BTS52462LAUMA1

IR (Infineon Technologies)

SMART HIGH-SIDE POWER SWITCH

7749
BTT61002EKAXUMA1

BTT61002EKAXUMA1

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
ISP75N

ISP75N

IR (Infineon Technologies)

SMART LOWSIDE POWER SWITCH

4000
AUIR3317STRL

AUIR3317STRL

IR (Infineon Technologies)

40V 120A AUTOMOTIVE

65420
BTS3028SDL

BTS3028SDL

IR (Infineon Technologies)

BTS3028 - HITFET, AUTOMOTIVE SMA

0
BTS452RATMA1

BTS452RATMA1

IR (Infineon Technologies)

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

0
BTS142DAKSA1

BTS142DAKSA1

IR (Infineon Technologies)

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

0
AUIR3320S

AUIR3320S

IR (Infineon Technologies)

AUIR3320 - PROFET - SMART HIGH S

14600
ITS724GFUMA1

ITS724GFUMA1

IR (Infineon Technologies)

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

3865

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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