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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
AP22913W6-7

AP22913W6-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT26

16394
PT8A2766ITAEX

PT8A2766ITAEX

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH 1:1 SOT23-5

0
AP22913CN4-7

AP22913CN4-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CH X1-WLB0909-4

2147483647
AP2280-2WG-7

AP2280-2WG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT25

700100
AP2191AMP-13

AP2191AMP-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

0
ZXMS6004DGTA

ZXMS6004DGTA

Zetex Semiconductors (Diodes Inc.)

IC PWR DRIVER N-CHAN 1:1 SOT223

52446
AP2196MPG-13

AP2196MPG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:2 8MSOP

5000
AP2172AFGEG-7

AP2172AFGEG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:2 8UDFN

6000
DRDC3105E6-7

DRDC3105E6-7

Zetex Semiconductors (Diodes Inc.)

IC PWR DRIVER BIPOLAR 1:1 SOT26

21896
AP2176MPG-13

AP2176MPG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:2 8MSOP

649
AP2142SG-13

AP2142SG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:2 8SOP

4210000
AP2191DMPG-13

AP2191DMPG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

0
AP2152ASG-13

AP2152ASG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:2 8SOP

7583
AP2281-3FMG-7

AP2281-3FMG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:1 6DFN

711729000
AP2311AMP-13

AP2311AMP-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

774
AP2552W6-7

AP2552W6-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT26

6513
AP2281-1FMG-7

AP2281-1FMG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:1 6DFN

0
AP2161FMG-7

AP2161FMG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:1 6DFN

1960
AP2161WG-7

AP2161WG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT25

5691
ZXMS6004DN8Q-13

ZXMS6004DN8Q-13

Zetex Semiconductors (Diodes Inc.)

IC PWR DRIVER 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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