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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
VNB20N07-E

VNB20N07-E

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 D2PAK

0
TPS2045ADR

TPS2045ADR

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

3073
TPS2092D

TPS2092D

Texas Instruments

IC PWR SWITCH N-CHAN 1:1 8SOIC

157
STMPS2161STR

STMPS2161STR

STMicroelectronics

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

31954
AP22814BM8-13

AP22814BM8-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

32500
NX3P191UK,012

NX3P191UK,012

NXP Semiconductors

IC PWR SWITCH HI SIDE LOG 4WLCSP

0
MP5010BDQ-LF-Z

MP5010BDQ-LF-Z

MPS (Monolithic Power Systems)

IC PWR SWITCH N-CHAN 1:1 10QFN

0
VND1NV04TR-E

VND1NV04TR-E

STMicroelectronics

IC PWR DRIVER N-CHANNEL 1:1 DPAK

0
MP62340DH-LF-Z

MP62340DH-LF-Z

MPS (Monolithic Power Systems)

IC PWR SWITCH 1:2 8MSOP

0
FPF1003

FPF1003

BUFFER/INVERTER PERIPHL DRIVER

524636
TPS2220BDB

TPS2220BDB

Texas Instruments

POWER SUPPLY CIRCUIT, FIXED

8360
MIC2017YM6-TR

MIC2017YM6-TR

Roving Networks / Microchip Technology

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

1113
AP22653FDZ-7

AP22653FDZ-7

Zetex Semiconductors (Diodes Inc.)

LOAD SWITCH,W-DFN2020-6,T&R,3K

13145
MIC2545A-2BN

MIC2545A-2BN

Roving Networks / Microchip Technology

PROGRAMMABLE HIGH-SIDE SWITCH

2338
BTS500402SFAXUMA2

BTS500402SFAXUMA2

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

136736
MC33988CHFKR2

MC33988CHFKR2

NXP Semiconductors

IC PWR SWITCH N-CHAN 1:2 16QFN

0
TPS2051BDBVR

TPS2051BDBVR

Texas Instruments

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

0
TLE75080EMHXUMA1

TLE75080EMHXUMA1

IR (Infineon Technologies)

BUFFER/INVERTER BASED PERIPHERAL

0
TLI4906L

TLI4906L

IR (Infineon Technologies)

TLI4906 - HALL SWITCH

19999
TPS2052ADG4

TPS2052ADG4

Texas Instruments

IC PWR SWITCH N-CHAN 1:2 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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