中文
English
SSM3K345R,LF-VB Product details
Back to previous pageProduct introduction：
SSM3K345R,LF-VB is a Single N-MOS meticulously optimized for low-voltage power switching scenarios. Using Trench technology, it strikes a good balance between low conduction loss and fast switching capability. The SOT23-3 package combines miniaturization with thermal performance advantages, making it suitable for high-density, high-volume applications. The combination of 20V drain-source voltage, 6A continuous drain current, and 28mΩ on-resistance makes it an ideal choice for portable devices, battery protection, and low-voltage drive applications.
File download
Download PDF document
Download now
Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 20V | 0.5~1.5V | 6A | 42(mΩ) | 28(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 20V | 0.5~1.5V | 6A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 20V | 0.5~1.5V | 6A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N |
VDS=20V: Suitable for 5V/12V low-voltage systems, reserves safety margin for switching node spikes, improves reliability.
VGS=±12V: Compatible with 2.5V~10V logic levels, can directly connect to control signals like MCU/PMIC, simplifies drive circuit design.
Vth=0.5~1.5V: Low threshold voltage supports low-voltage drive, especially suitable for battery voltage drop or low-voltage startup scenarios.
RDS(on)=42mΩ @ VGS=2.5V / 28mΩ @ VGS=4.5V: Maintains low on-resistance even with low-voltage drive, effectively reduces full-load power consumption and temperature rise.
ID=6A: Ample continuous current capability, can meet transient and continuous current demands of most portable and auxiliary loads.
Package SOT23-3: Small size, low parasitic parameters, beneficial for high-frequency switching and saves PCB area and assembly cost.
VGS=±12V: Compatible with 2.5V~10V logic levels, can directly connect to control signals like MCU/PMIC, simplifies drive circuit design.
Vth=0.5~1.5V: Low threshold voltage supports low-voltage drive, especially suitable for battery voltage drop or low-voltage startup scenarios.
RDS(on)=42mΩ @ VGS=2.5V / 28mΩ @ VGS=4.5V: Maintains low on-resistance even with low-voltage drive, effectively reduces full-load power consumption and temperature rise.
ID=6A: Ample continuous current capability, can meet transient and continuous current demands of most portable and auxiliary loads.
Package SOT23-3: Small size, low parasitic parameters, beneficial for high-frequency switching and saves PCB area and assembly cost.
Domain and module applications：
Decision Value Analysis
Portable Device Power Management: Low on-resistance improves DC-DC conversion efficiency, small package suits ultra-thin design, extends battery life.
Battery Protection Module: Fast switching and low threshold ensure reliable shutdown during overcurrent/short circuit, low on-resistance reduces self-heating of the protection board.
Low-Voltage Motor Drive: Low PWM switching loss, smoother motor operation, significantly lower controller temperature rise.
Consumer Electronics Control Module: Logic-level direct drive capability simplifies peripheral circuits, suitable for high-volume products like smart sockets and electronic switches.
LED Lighting Drive: Low on-voltage drop reduces constant current source power loss, supports multi-channel parallel connection, improves overall light efficiency.
DC-DC Converter: Can replace some Schottky diodes in synchronous rectification, improving light-load and heavy-load efficiency, aiding module miniaturization.
E-cigarette and Small Appliance Control: Fast response, small footprint, meets short-duration high-current pulse operation requirements, reliable and durable. Selection Summary: SSM3K345R,LF-VB achieves an optimized balance between low-voltage drive capability, conduction loss, and package size, making it a cost-effective general-purpose choice for 20V low-voltage switching applications, especially suitable for portable and consumer projects with strict space, power consumption, and cost 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
Technical support：
* If you have any questions about the product, please fill out the form to submit, we will reply you within 24 hours
