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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TPS22920YZPR

TPS22920YZPR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8DSBGA

0
TPS22925CYPHR

TPS22925CYPHR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 6DSBGA

1501
TPS2058AD

TPS2058AD

Texas Instruments

TPS2058A 0.345A, 2.7-5.5V QUAD (

5847
TPS2062DGN

TPS2062DGN

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8MSOP

0
TPS2045D

TPS2045D

Texas Instruments

POWER SUPPLY SUPPORT CIRCUIT, FI

475
TPS2061DGNR

TPS2061DGNR

Texas Instruments

TPS2061 SINGLE 1A CURRENT-LIMITE

8081
DS3658N

DS3658N

Texas Instruments

AND GATE BASED MOSFET DRIVER

0
TPS2022P

TPS2022P

Texas Instruments

BUFFER/INVERTER PERIPHL DRIVER

11893
TPS2081D

TPS2081D

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

920
TPS2012DR

TPS2012DR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
TPS22964CYZPR

TPS22964CYZPR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 6DSBGA

28701
TPS2096D

TPS2096D

Texas Instruments

BUFFER/INVERTER BASED PERIPHERAL

6280
TPS2047BDR

TPS2047BDR

Texas Instruments

POWER SUPPLY CIRCUIT, FIXED

15000
TPS2HB35CQPWPRQ1

TPS2HB35CQPWPRQ1

Texas Instruments

HYDRA 35 MOHM OTP C

1447
TPS22916BYFPR

TPS22916BYFPR

Texas Instruments

IC PWR SWITCH P-CHAN 1:1 4DSBGA

1823
LM3525M-H/NOPB

LM3525M-H/NOPB

Texas Instruments

IC PWR SWITCH P-CHAN 1:1 8SOIC

3052
TPS22918DBVR

TPS22918DBVR

Texas Instruments

TPS22918 5.5V, 2A, LOAD SWITCH W

0
TPS22993RLWR

TPS22993RLWR

Texas Instruments

TPS22993 3.6V 1.2A 15MOHM 4-CH I

258942
TPS2021DRG4

TPS2021DRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
TPS2205IDAPR

TPS2205IDAPR

Texas Instruments

TPS2205 1A DUAL-SLOT PC CARD POW

14292

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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