PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
AUIPS7111S

AUIPS7111S

IR (Infineon Technologies)

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

0

IPS7091GPBF

IPS7091GPBF

IR (Infineon Technologies)

IC SWITCH IPS HIGH SIDE 8-SOIC

0

BTS721L1T

BTS721L1T

IR (Infineon Technologies)

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

0

AUIR3313S

AUIR3313S

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:1 D2PAK

0

IPS2041RPBF

IPS2041RPBF

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 DPAK

0

TLE7241EXUMA2

TLE7241EXUMA2

IR (Infineon Technologies)

IC PWR DRIVER N-CHAN 1:2 DSO-20

0

TLE6244XAUMA1

TLE6244XAUMA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 MQFP64

0

IR3312STRR

IR3312STRR

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 D2PAK

0

BTS5441G

BTS5441G

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 PDSO-28

0

IPS024G

IPS024G

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 16SOIC

0

AUIR3317

AUIR3317

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO220

0

TLE4247EL30XUMA1

TLE4247EL30XUMA1

IR (Infineon Technologies)

IC PWR DRIVER BIPOLAR 1:1 DSO-8

0

IPS511GTR

IPS511GTR

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0

BTS6143DNT

BTS6143DNT

IR (Infineon Technologies)

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

0

BTS308 E3059

BTS308 E3059

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO220-5

0

BTS612N1 E3128A

BTS612N1 E3128A

IR (Infineon Technologies)

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

0

BTS3207NNT

BTS3207NNT

IR (Infineon Technologies)

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

0

IPS512G

IPS512G

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 16SOIC

0

AUXHA1021RTRL

AUXHA1021RTRL

IR (Infineon Technologies)

IC PWR SWITCH N-CHANNEL 1:1 DPAK

0

IR3312STRL

IR3312STRL

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 D2PAK

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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