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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
BSP78 E6327

BSP78 E6327

IR (Infineon Technologies)

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

0
IPS1031RPBF

IPS1031RPBF

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 DPAK

0
BTS452TT

BTS452TT

IR (Infineon Technologies)

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

0
BTS3110NNT

BTS3110NNT

IR (Infineon Technologies)

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

0
AUIPS1021S

AUIPS1021S

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 D2PAK

0
AUIPS1051LTR

AUIPS1051LTR

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 SOT223

0
BTS52422LAUMA1

BTS52422LAUMA1

IR (Infineon Technologies)

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

0
BTS711L1NT

BTS711L1NT

IR (Infineon Technologies)

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

0
IPS1041LPBF

IPS1041LPBF

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 SOT223

0
BTS426L1 E3062A

BTS426L1 E3062A

IR (Infineon Technologies)

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

0
BTS840S2

BTS840S2

IR (Infineon Technologies)

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

0
IPS511STRL

IPS511STRL

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 D2PAK

0
IRSF3021L

IRSF3021L

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:1 SOT223

0
BTS6144B

BTS6144B

IR (Infineon Technologies)

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

0
BTS5231GS

BTS5231GS

IR (Infineon Technologies)

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

0
AUIPS7142G

AUIPS7142G

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 16SOIC

0
BTS650P E3180A

BTS650P E3180A

IR (Infineon Technologies)

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

0
BTS500701EGAAUMA1

BTS500701EGAAUMA1

IR (Infineon Technologies)

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

0
BTS4141NNT

BTS4141NNT

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 SOT223

0
BTS50090-1TMB

BTS50090-1TMB

IR (Infineon Technologies)

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

0

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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