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Microchip Technology MIC94030BM4 TR
- Part No.:
- MIC94030BM4 TR
- Manufacturer:
- Microchip Technology
- Category:
- FETs, MOSFETs
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MIC94030BM4 TR.pdf
- Description:
- MOSFET P-CH 16V 1A SOT-143
- Quantity:
- Payment:
- Shipping:
Inventory:8,974
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Product details
Overview
MIC94030BM4 TR from Micrel is a 4-terminal P-channel MOSFET in SOT-143 (M4) package, designed for high-side switching in space-constrained systems. It delivers 0.75Ω typical RDS(ON) at VGS = –4.5V, operates down to –2.7V gate drive, and supports –13.5V drain-source breakdown - enabling use in PCMCIA sleep-mode and distributed power management circuits.
For engineers reviewing the MIC94030BM4 TR datasheet, MIC94030BM4 TR pinout, MIC94030BM4 TR application, or MIC94030BM4 TR equivalent, key selection criteria include its separate substrate terminal for thermal and analog switch optimization, low-threshold operation, and verified performance across –55°C to +150°C junction temperature range.
Technical Context
The MIC94030BM4 TR uses silicon-gate P-channel enhancement-mode technology with a dedicated substrate (SS) terminal electrically isolated from source (S), enabling independent biasing for improved θJA (220°C/W) and analog switch linearity. Its gate threshold voltage (–0.6V to –1.4V) ensures reliable turn-on with low-voltage logic control.
Unlike the MIC94031 variant, MIC94030BM4 TR has no internal gate pull-up resistor - requiring external gate control circuitry. It sustains –1A continuous drain current at 25°C and exhibits 100pF input capacitance (CISS) at VDS = –12V, supporting fast switching in compact power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBDSS | –13.5V min: Ensures safe blocking of up to –12V supply rails in high-side configurations. |
| RDS(ON) @ VGS = –4.5V | 0.75Ω typ: Enables <100mW conduction loss at 100mA load, critical for battery-powered sleep modes. |
| VGS(th) | –0.6V to –1.4V: Guarantees turn-on with standard 3.3V or 5V logic outputs without level-shifting. |
| ID Continuous | –1A @ TA = 25°C: Supports moderate-power peripheral switching in portable equipment. |
| θJA | 220°C/W: Reflects thermal performance with standard PCB copper area; substrate-to-PCB thermal path improves dissipation. |
| CISS | 100pF @ VDS = –12V: Limits gate drive energy and switching speed in low-power control loops. |
Pinout & Package
SOT-143 (M4) package with 4 terminals: compact 1.4mm × 1.4mm footprint, gull-wing leads, and exposed substrate pad for enhanced thermal transfer. Substrate connection is electrically isolated from source, enabling optimized analog switching and reduced thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | High-side switched output node | Connects to load; handles full supply voltage and load current in high-side configuration. |
| Source (S) | Reference node for channel conduction | Tied to positive rail; defines VGS reference; must be externally connected to substrate (SS) for standard operation unless analog isolation required. |
| Gate (G) | Control electrode | Accepts negative gate drive relative to source; threshold range allows direct interface with 3.3V/5V CMOS outputs. |
| Substrate (SS) | Body terminal, electrically isolated | Enables independent biasing for analog switch linearity or thermal enhancement via PCB heat sink plane. |
Key Features
| Feature | Design Value |
|---|---|
| Separate substrate terminal | Enables analog switch operation and reduces θJA by allowing dedicated thermal path to PCB copper. |
| Low VGS(th) range | –0.6V to –1.4V ensures robust turn-on with 3.3V logic, eliminating need for gate drivers in many embedded applications. |
| Ultra-small SOT-143 package | 1.4mm × 1.4mm footprint saves board space in PCMCIA, handheld scanners, and slim peripherals. |
| –13.5V VBDSS | Supports reliable high-side switching in +5V, +8V, and +12V distributed power domains without derating. |
Applications
| PCMCIA Card Sleep Mode | Distributed Power Management |
|---|---|
Use Scenario: Power gating unused PCMCIA card slots during system sleep to minimize standby current. IC Role / Device Role / Timing Role: High-side load switch controlling +3.3V/+5V slot power rail. Use Value: 0.75Ω RDS(ON) limits voltage drop and self-heating, preserving rail integrity and extending battery life. | Use Scenario: Independent on/off control of multiple subsystems (e.g., USB ports, sensors, displays) in portable computers. IC Role / Device Role / Timing Role: Low-threshold P-channel switch driven directly by microcontroller GPIO. Use Value: –2.7V minimum VGS enables direct 3.3V logic control without level shifters or external bias networks. |
| Battery-Powered Peripherals | Hand-Held Bar-Code Scanners |
Use Scenario: Enabling/disabling power to motor drivers or RF modules in USB-powered peripherals. IC Role / Device Role / Timing Role: Load switch isolating downstream circuitry from main battery during idle states. Use Value: –1A rating and 220°C/W θJA support intermittent high-current bursts while maintaining thermal safety on minimal PCB copper. | Use Scenario: Controlling illumination LED banks and laser diode drivers in compact handheld scanners. IC Role / Device Role / Timing Role: High-side switch sequencing power to optical subsystems based on scan trigger events. Use Value: Small SOT-143 footprint integrates into tight mechanical envelopes without compromising thermal performance via substrate-to-PCB thermal coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMG1012T | 0.55Ω RDS(ON) @ –4.5V; SOT-723 (smaller 1.2mm × 1.2mm); no substrate terminal. | Lacks isolated substrate; unsuitable for analog switch use; better RDS(ON) but higher gate charge (1.4nC vs 0.8nC). | Select when board space is more critical than analog functionality or thermal optimization. |
| SI2301DS | 0.115Ω RDS(ON) @ –4.5V; SOT-23; no substrate terminal; higher ID (–2.7A). | Higher current capability but larger package (2.9mm × 1.6mm); no SS terminal limits thermal and analog flexibility. | Select when higher load current and lower conduction loss outweigh need for substrate isolation or ultra-compact size. |
Compared with DMG1012T and SI2301DS, MIC94030BM4 TR uniquely provides a dedicated substrate terminal for thermal enhancement and analog switch linearity - a capability absent in both alternatives - while maintaining the smallest footprint among the three.
Availability
MIC94030BM4 TR is available at Aetrix Electronics and suitable for PCMCIA card sleep mode, distributed power management, and battery-powered peripheral applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MIC94030BM4 TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Micrel Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC94030BM4 TR belongs to Micrel's TinyFET® family of ultra-compact P-channel MOSFETs, engineered specifically for space-constrained high-side switching in portable and embedded systems.
FAQ
What is the maximum continuous drain current for MIC94030BM4 TR at 100°C ambient?
The MIC94030BM4 TR supports –0.5A continuous drain current at TA = 100°C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limits under standard PCB conditions; actual performance may improve with enhanced heatsinking via the substrate terminal.
Does MIC94030BM4 TR include an internal gate pull-up resistor?
No, MIC94030BM4 TR does not include an internal gate pull-up resistor. That feature is exclusive to the MIC94031 variant. MIC94030BM4 TR requires external gate control - either active drive or a discrete pull-up - to ensure defined off-state behavior.
How should the substrate (SS) terminal be connected in standard high-side switch operation?
In standard high-side switch operation, the substrate (SS) terminal of MIC94030BM4 TR must be connected to the source (S) terminal. This connection ensures proper device operation and avoids latch-up; separation is only used in specialized analog switch configurations per the datasheet guidance.
What is the gate-to-source leakage current specification for MIC94030BM4 TR?
The gate-to-source leakage current (IGSS) for MIC94030BM4 TR is specified as ≤1µA at VGS = –12V and TA = 25°C. This low leakage supports stable gate biasing in battery-critical applications where quiescent current must be minimized.
Can MIC94030BM4 TR be used in analog switch applications?
Yes, MIC94030BM4 TR can be used in analog switch applications due to its 4-terminal SOT-143 structure with electrically isolated substrate. The datasheet explicitly cites analog switch use (Figure 3), enabled by independent substrate biasing to maintain channel symmetry and reduce distortion.
MIC94030BM4 TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- TinyFET®
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 16 V
- Current - Continuous Drain (Id) @ 25°C:
- 1A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.7V, 10V
- Rds On (Max) @ Id, Vgs:
- 450mOhm @ 100mA, 10V
- Vgs(th) (Max) @ Id:
- 1.4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Vgs (Max):
- 16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 100 pF @ 12 V
- FET Feature:
- -
- Power Dissipation (Max):
- 568mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143
MIC94030BM4 TR FAQ
1.How can I place an order for MIC94030BM4 TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC94030BM4 TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MIC94030BM4 TR reliable?
The price and inventory of MIC94030BM4 TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC94030BM4 TR is usually 5 days.
3.What payment methods are accepted for MIC94030BM4 TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC94030BM4 TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC94030BM4 TR?
MIC94030BM4 TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC94030BM4 TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MIC94030BM4 TR?
For technical support, including MIC94030BM4 TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC94030BM4 TR requirements.
6.How does Aetrix verify that MIC94030BM4 TR is sourced from the original manufacturer or authorized distributors?
All MIC94030BM4 TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC94030BM4 TR meets industry standards.
7.What is the process for return or replacement of MIC94030BM4 TR?
All MIC94030BM4 TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC94030BM4 TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MIC94030BM4 TR part is unused and in its original packaging.
Return procedure for MIC94030BM4 TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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