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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TPS22981RGPT

TPS22981RGPT

Texas Instruments

IC PWR SWITCH 1:1 20QFN

250
TPS2554DRCT

TPS2554DRCT

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 10VSON

350
TPS22929DDBVR

TPS22929DDBVR

Texas Instruments

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

87
TPS2042DG4

TPS2042DG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8SOIC

0
TPS2066AD

TPS2066AD

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8SOIC

177
TPS2052BDRG4

TPS2052BDRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8SOIC

2
TPS2HB50BQPWPRQ1

TPS2HB50BQPWPRQ1

Texas Instruments

50 MOHM OTP B

2790
TPS2220BPWPR

TPS2220BPWPR

Texas Instruments

POWER SUPPLY CIRCUIT, FIXED

104000
TPS2031DRG4

TPS2031DRG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

0
TPS2024IDRG4Q1

TPS2024IDRG4Q1

Texas Instruments

TPS2024-Q1 AUTOMOTIVE 2.7V TO 5.

9995
TPS2049DR

TPS2049DR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

5761
TPS2011AD

TPS2011AD

Texas Instruments

TPS2011A 1.2A, 2.7 TO 5.5V SINGL

11040
TPS2HB35AQPWPRQ1

TPS2HB35AQPWPRQ1

Texas Instruments

HYDRA 35 MOHM OTP A

2628
TPS2530DBVT

TPS2530DBVT

Texas Instruments

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

0
TPS2043ADG4

TPS2043ADG4

Texas Instruments

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

0
TPS1H100BQPWPRQ1

TPS1H100BQPWPRQ1

Texas Instruments

IC PWR SWTCH N-CHAN 1:1 14HTSSOP

0
TPS2202AIDBR

TPS2202AIDBR

Texas Instruments

POWER SUPPLY CIRCUIT, FIXED

40000
TPS22942DCKR

TPS22942DCKR

Texas Instruments

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

6352
TPS2031P

TPS2031P

Texas Instruments

IC PWR SWITCH N-CHANNEL 1:1 8DIP

106
TPS2012ADR

TPS2012ADR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

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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