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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TPS2530DBVR

TPS2530DBVR

Texas Instruments

TPS2530 CURRENT-LIMITED USB SWIT

2633
BSP742RIXUMA1

BSP742RIXUMA1

IR (Infineon Technologies)

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

64
TPS2014DRG4

TPS2014DRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
MIC2545A-2YTS-TR

MIC2545A-2YTS-TR

Roving Networks / Microchip Technology

IC PWR SWITCH N-CHAN 1:1 14TSSOP

0
BD82023FVJ-E2

BD82023FVJ-E2

ROHM Semiconductor

IC USB PWR SW HI SIDE 1CH 8TSSOP

2480
LTC1471CS#PBF

LTC1471CS#PBF

Analog Devices, Inc.

IC PWR SWITCH N-CHAN 2:1 16SOIC

104
XC6192B105ER-G

XC6192B105ER-G

Torex Semiconductor Ltd.

IC PWR SWITCH P-CH 1:1 8USP-B06

0
TLE75602EMDXUMA1

TLE75602EMDXUMA1

IR (Infineon Technologies)

TLE75602 - SPIDER - SPI DRIVER F

0
MAX1922ESA+T

MAX1922ESA+T

Maxim Integrated

IC PWR SWITCH P-CHAN 1:1 8SOIC

0
SP2526A-2EN-L/TR

SP2526A-2EN-L/TR

MaxLinear

IC PWR SWITCH N-CHAN 1:2 8SOIC

0
TPS2034DRG4

TPS2034DRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
MC06XS4200BFKR2

MC06XS4200BFKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:1 23PQFN

0
BD2269G-MGTR

BD2269G-MGTR

ROHM Semiconductor

IC PWR SWITCH N-CHAN 1:1 5SSOP

3000
TPS2551DBVRG4

TPS2551DBVRG4

Texas Instruments

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

0
DRDC3105F-7

DRDC3105F-7

Zetex Semiconductors (Diodes Inc.)

IC PWR DRIVER BIPOLAR 1:1 SOT23

32375
MP62170ES-1-LF-Z

MP62170ES-1-LF-Z

MPS (Monolithic Power Systems)

IC PWR SWITCH 1:1 8SOIC

0
AP2101MPG-13

AP2101MPG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

2430
AOZ1376DI-02

AOZ1376DI-02

Alpha and Omega Semiconductor, Inc.

ECPOWER 20V 20M PROTECTION SWITC

4974
TPS2044BD

TPS2044BD

Texas Instruments

IC PWR SWITCH N-CH 2X1:2 16SOIC

731
TCK207G,LF

TCK207G,LF

Toshiba Electronic Devices and Storage Corporation

IC PWR SWITCH N-CHAN 1:1 4WCSP

4

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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