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SSM3K337R,LF-VB Product details
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SSM3K337R,LF-VB is a Single N-MOS optimized for low-voltage power switching scenarios. The Trench process balances low switching loss and high reliability, while the SOT23-3 package strikes a balance between heat dissipation and board space. The combination of 30V withstand voltage, 5A current carrying capacity, and 47mΩ on-resistance makes it an ideal cost-reducing incremental option to replace traditional DPAK or SOP-8 packaged devices, especially suitable for high-density, high-volume applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 30V | 1.7V | 5A | 62(mΩ) | 47(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 | 30V | 1.7V | 5A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 30V | 1.7V | 5A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N |
VDS=30V: Suitable for 5V/12V/24V systems, providing sufficient margin for voltage spikes, reducing avalanche breakdown risk.
VGS=±20V: Compatible with 1.8V~12V logic levels, can directly connect to MCU/PMIC, eliminating level-shifting 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)=47mΩ @ VGS=10V: Low on-resistance, significantly reduces temperature rise under full load, can reduce heat sink copper area.
ID=5A: Moderate continuous current margin, meets common requirements of most portable and automotive auxiliary loads.
Package: SOT23-3: Small size, low parasitic parameters, supports high-frequency switching, saves PCB area and assembly cost.
VGS=±20V: Compatible with 1.8V~12V logic levels, can directly connect to MCU/PMIC, eliminating level-shifting 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)=47mΩ @ VGS=10V: Low on-resistance, significantly reduces temperature rise under full load, can reduce heat sink copper area.
ID=5A: Moderate continuous current margin, meets common requirements of most portable and automotive auxiliary loads.
Package: SOT23-3: Small size, low parasitic parameters, supports high-frequency switching, saves PCB area and assembly cost.
Domain and module applications：
Decision Value Analysis
Portable Device Power Management: Low internal resistance improves boost/buck efficiency, extends battery life, and small package enables ultra-thin design.
Battery Protection Module: Fast response ensures microsecond-level shutdown during overcurrent/short circuit, low internal resistance reduces self-heating of protection board.
Low-Voltage Motor Drive: Low PWM switching losses, smoother motor operation, significantly reduced 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 Drive: Low on-state voltage drop reduces constant current source power consumption, supports multi-channel parallel connection, improves overall light efficiency.
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 (-55~150°C) adapt to 12V automotive bus, high reliability.
Selection Summary: SSM3K337R,LF-VB achieves a balance between performance margin, package size, and system cost, making it a cost-effective general-purpose choice for 30V low-voltage switching 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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