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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TPS2033D

TPS2033D

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

4969
TPS2024DRG4

TPS2024DRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
TPS2224PWP

TPS2224PWP

Texas Instruments

TPS2224 1A DUAL-SLOT PC CARD POW

1338
TPS2556DRBR

TPS2556DRBR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SON

0
TPS2065DGNR-1

TPS2065DGNR-1

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8MSOP

2805
ULQ2004ADG4

ULQ2004ADG4

Texas Instruments

IC PWR DRIVER NPN 1:1 16SOIC

0
TPS2014P

TPS2014P

Texas Instruments

BUFFER/INVERTER BASED PERIPHERAL

35425
TPS2231MRGPT-3

TPS2231MRGPT-3

Texas Instruments

TPS2231 EXPRESSCARD SINGLE POWER

6986
TPS2043ADR

TPS2043ADR

Texas Instruments

POWER SUPPLY CIRCUIT, FIXED

21525
DRV104PWP

DRV104PWP

Texas Instruments

IC PWR DRIVER 1:1 14HTSSOP

1279
TPS22968NQDMGTQ1

TPS22968NQDMGTQ1

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 10WSON

294
TPS22906YZVR

TPS22906YZVR

Texas Instruments

IC PWR SWITCH P-CHAN 1:1 4DSBGA

448
TPS22942DCKRG4

TPS22942DCKRG4

Texas Instruments

IC PWR SWITCH P-CHAN 1:1 SC70-5

0
TPS2051BDBVTG4

TPS2051BDBVTG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 SOT23-5

0
DRV103UG4

DRV103UG4

Texas Instruments

IC PWR DRIVER N-CHAN 1:1 8SOIC

0
TPS2051BDGN

TPS2051BDGN

Texas Instruments

TPS2051B SINGLE, CURRENT-LIMITED

4923
TPS2553DBVR

TPS2553DBVR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 SOT23-6

0
TPS2015D

TPS2015D

Texas Instruments

BUFFER/INVERTER BASED PERIPHERAL

5663
ULQ2003ATDQ1

ULQ2003ATDQ1

Texas Instruments

IC PWR DRIVER NPN 1:1 16SOIC

1545
TPS22924BYZT

TPS22924BYZT

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 6DSBGA

1000

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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