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PMIC - Power Distribution Switches, Load Drivers

Image Part Number Description / PDF Quantity Rfq
AP2151AFM-7

AP2151AFM-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 6UDFN

0
AP2192AMPG-13

AP2192AMPG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:2 8MSOP

4705
AP2822CKTR-G1

AP2822CKTR-G1

Zetex Semiconductors (Diodes Inc.)

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

18000
AP2151DWG-7

AP2151DWG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT25

8045
AP22814BM8-13

AP22814BM8-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

32500
AP22653FDZ-7

AP22653FDZ-7

Zetex Semiconductors (Diodes Inc.)

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

13145
AP2142ASG-13

AP2142ASG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:2 8SOP

11919
AP2511M8-13

AP2511M8-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

2500
AP2311SN-7

AP2311SN-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CH 1:1 6DFN2020

0
AP2553FDC-7R

AP2553FDC-7R

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 6UDFN

892
AP22916BCA4-7

AP22916BCA4-7

Zetex Semiconductors (Diodes Inc.)

LOAD SWITCH X1-WLB0808-4 T&R 3K

240030000
AP22802AW5-7

AP22802AW5-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT25

5132
AP2196SG-13

AP2196SG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:2 8SOP

2500
AP2161DFMG-7

AP2161DFMG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHANNEL 1:1 6DFN

0
AP2191AW-7

AP2191AW-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 SOT25

2340
AP2511AM8-13

AP2511AM8-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

35000
AP2152AFGEG-7

AP2152AFGEG-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:2 8UDFN

9695
AP2511ASN-7

AP2511ASN-7

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 6UDFN

0
AP2162AMPG-13

AP2162AMPG-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:2 8MSOP

21797500
AP22804BM8-13

AP22804BM8-13

Zetex Semiconductors (Diodes Inc.)

IC PWR SWITCH P-CHAN 1:1 8MSOP

1829

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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