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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
TPS2228PWPR

TPS2228PWPR

Texas Instruments

TPS2228 1A DUAL-SLOT CARDBAY PC

28000
TPS2044DR

TPS2044DR

Texas Instruments

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

0
TPS2053BD

TPS2053BD

Texas Instruments

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

208
TPS2206IDBG4

TPS2206IDBG4

Texas Instruments

IC PWR SWITCH 3:4 30SSOP

0
TPS22968QDMGRQ1

TPS22968QDMGRQ1

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 10WSON

0
TPS2236DAPR

TPS2236DAPR

Texas Instruments

POWER SUPPLY CIRCUIT, FIXED

8000
TPS2226ADBG4

TPS2226ADBG4

Texas Instruments

IC PWR SWITCH 3:4 30SSOP

0
TPS2231PWRG4

TPS2231PWRG4

Texas Instruments

IC PWR SWITCH 1:1 20TSSOP

0
TPS22914BYFPT

TPS22914BYFPT

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 4DSBGA

719
TPS2041BDBVR

TPS2041BDBVR

Texas Instruments

TPS2041B SINGLE-CHANNEL CURRENT-

27936
TPS2041BDBVRG4

TPS2041BDBVRG4

Texas Instruments

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

0
TPS2223APWPR

TPS2223APWPR

Texas Instruments

TPS2223A DUAL-SLOT CARDBUS POWER

60000
TPS2231MRGPR-3

TPS2231MRGPR-3

Texas Instruments

TPS2231 EXPRESSCARD SINGLE POWER

105000
TPS2069CDGNR-2

TPS2069CDGNR-2

Texas Instruments

TPS2069C-2 SINGLE CHANNEL, CURRE

61500
LM3544M-L

LM3544M-L

Texas Instruments

POWER SUPPLY SUPPORT CIRCUIT, FI

3123
TPS2045AD

TPS2045AD

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

282
TPS2544RTER

TPS2544RTER

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 16WQFN

0
TPS22930AYZVR

TPS22930AYZVR

Texas Instruments

TPS22930A - 5.5V, 2A, LOAD SWITC

0
TPS2075DBR

TPS2075DBR

Texas Instruments

TPS2075 PWR CONTROLLER FOR BUS/S

8000
TPS2060DRBR

TPS2060DRBR

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 8SON

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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