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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
XC6192A110ER-G

XC6192A110ER-G

Torex Semiconductor Ltd.

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

0
BTS500801TMBAKSA1

BTS500801TMBAKSA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO220-7

0
L9339-TR

L9339-TR

STMicroelectronics

IC PWR DRIVER N-CHAN 1:1 20SOIC

0
NID9N05BCLT4G

NID9N05BCLT4G

Sanyo Semiconductor/ON Semiconductor

MOSFET N-CH 52V 9A LL DPAK-3

0
VNI4140K

VNI4140K

STMicroelectronics

IC PWR DRVR N-CHAN 1:1 PWRSSO24

5
VB325SP-E

VB325SP-E

STMicroelectronics

IC PWR DRVR BIPOLAR 1:1 PWRSO10

190
TPS22949ADRGR

TPS22949ADRGR

Texas Instruments

TPS22949 4.5V, 0.2A, 350MOHM, 10

39294
BTS54040LBAAUMA1

BTS54040LBAAUMA1

IR (Infineon Technologies)

SPOC SPI POWER CONTROLLER

57896
MIC2091-2YM5-TR

MIC2091-2YM5-TR

Roving Networks / Microchip Technology

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

0
NCP380LMU15AATBG

NCP380LMU15AATBG

POWER SUPPLY SUPPORT CIRCUIT, FI

36000
TPS2228PWPR

TPS2228PWPR

Texas Instruments

TPS2228 1A DUAL-SLOT CARDBAY PC

28000
BTS133BKSA1

BTS133BKSA1

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO220-3

3602
AUIPS7091GTR

AUIPS7091GTR

IR (Infineon Technologies)

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

0
ZXMS6005DN8Q-13

ZXMS6005DN8Q-13

Zetex Semiconductors (Diodes Inc.)

IC PWR DRIVER N-CHAN 1:1 8SOIC

0
TPS2044DR

TPS2044DR

Texas Instruments

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

0
AP2161SG-13

AP2161SG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:1 8SOP

19805000
BD2202G-LBTR

BD2202G-LBTR

ROHM Semiconductor

IC PWR SWITCH N-CHAN 1:1 5SSOP

1801
BTS500201TADATMA2

BTS500201TADATMA2

IR (Infineon Technologies)

IC PWR SWITCH N-CHAN 1:1 TO263-7

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

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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