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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TPS22914CYFPR

TPS22914CYFPR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 4DSBGA

0
TPS2553DBVT-1

TPS2553DBVT-1

Texas Instruments

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

750
TPS2550DRVRG4

TPS2550DRVRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 6WSON

0
TPS2552DRVT-1

TPS2552DRVT-1

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 6WSON

4364
TPS2052P

TPS2052P

Texas Instruments

ANALOG CIRCUIT, PDIP8

5432
TPS2001DDGKR

TPS2001DDGKR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8VSSOP

0
TPS2022DRQ1

TPS2022DRQ1

Texas Instruments

TPS2022-Q1 AUTOMOTIVE 2.7V TO 5.

31125
TPS22944DCKR

TPS22944DCKR

Texas Instruments

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

119009
TPS2042DR

TPS2042DR

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8SOIC

602
TPS2231PW

TPS2231PW

Texas Instruments

IC PWR SWITCH 1:1 20TSSOP

185
TPS2052CDGN

TPS2052CDGN

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8MSOP

1110
TPS2063DG4

TPS2063DG4

Texas Instruments

IC PWR SWTCH N-CH 1:2/1:1 16SOIC

0
TPS22954DQCR

TPS22954DQCR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 10WSON

679
TPS2224ADB

TPS2224ADB

Texas Instruments

TPS2224A DUAL-SLOT CARDBUS POWER

19250
TPS2044ADR

TPS2044ADR

Texas Instruments

POWER SUPPLY SUPPORT CIRCUIT, FI

7122
TPS2020D

TPS2020D

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

923
TPS2546QRTERQ1

TPS2546QRTERQ1

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 16WQFN

0
TPS2041BDRG4

TPS2041BDRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
ULQ2004ATDRG4Q1

ULQ2004ATDRG4Q1

Texas Instruments

ULQ2004A-Q1 AUTOMOTIVE CATALOG H

12409
TPS22953DQCR

TPS22953DQCR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 10WSON

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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