Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| DFN8(3X3) |
Single-P |
-30V |
|
-1.7V |
-24A |
|
21.25(mΩ) |
17(mΩ) |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| DFN8(3X3) |
Single-P |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| DFN8(3X3) |
Single-P |
-30V |
|
-1.7V |
-24A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| DFN8(3X3) |
Single-P |
-30V |
|
-1.7V |
-24A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| DFN8(3X3) |
Single-P |
|
|
|
|
|
|
|
VDS=-30V: Suitable for 5V/12V/24V systems, providing sufficient voltage spike margin in negative voltage topologies to reduce avalanche breakdown risk.
VGS=±20V: Compatible with 1.8V~12V logic levels, can directly interface with MCU/PMIC, eliminating the need for level shift circuits.
Vth=-1.7V (Typical): Can enter the fully enhanced region even with low-voltage drive, especially suitable for battery voltage decay scenarios.
RDS(on)=17mΩ @ VGS=10V: Ultra-low on-resistance significantly reduces temperature rise under full load, allowing for reduced copper area for heat dissipation.
RDS(on)=21.25mΩ @ VGS=4.5V: Maintains low conduction losses even under low-voltage logic drive, improving system efficiency.
ID=-24A: Ample continuous current margin to handle peak demands of most portable and automotive auxiliary loads.
Package DFN8(3X3): Small size, low parasitic parameters, supports high-frequency switching while saving PCB area and assembly costs.
Domain and module applications：
Portable Device Power Management: Low on-resistance in negative voltage rail conversion improves efficiency and extends battery life; small package aids ultra-thin design.
Battery Protection Module: Fast switching characteristics ensure microsecond-level shutdown during overcurrent/short circuit; low on-resistance reduces self-heating of the protection board.
Low-Voltage Motor Drive: Low PWM switching losses lead to smoother motor operation and significantly lower controller temperature rise.
Consumer Electronics Control Module: Logic-level direct drive simplifies peripheral circuitry, suitable for high-volume, low-cost products like smart sockets and USB switches.
LED Lighting Driver: Low on-voltage drop reduces constant current source power consumption, supports multi-channel parallel connection, and improves overall luminaire efficacy.
DC-DC Converter: Replaces Schottky diodes in synchronous rectification, improving heavy-load efficiency by 2-3%, facilitating module miniaturization.
Automotive Auxiliary Power Supply: Voltage margin and wide operating temperature range are compatible with 12V automotive bus, offering high reliability. Selection Summary: BUK6Q21-30PJ-VB achieves a balance between performance margin, package size, and system cost, making it a cost-effective general-purpose choice for 30V low-voltage P-channel switch applications, especially suitable for projects with strict space and thermal requirements.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
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