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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

STMicroelectronics STT7P2UH7

Name: STT7P2UH7
Brand: STMicroelectronics
SKU: STT7P2UH7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STT7P2UH7

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: SOT-23-6

Datasheet:: STT7P2UH7.pdf

Description:: MOSFET P-CH 20V 7A SOT23-6

Quantity:: RFQ Add To RFQ list

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Inventory:2,400

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Product details

Overview

STT7P2UH7 from STMicroelectronics is a P-channel enhancement-mode Power MOSFET in SOT23-6L package, rated for 20 V V_DS, 7 A continuous drain current at T_pcb = 25 °C, and 0.0195 Ω typical R_DS(on) at V_GS = 4.5 V. It employs STripFET™ H7 trench-gate technology for ultra-low on-resistance and capacitance, enabling high-frequency switching in compact load-switch and power-management circuits.

For engineers reviewing the STT7P2UH7 datasheet, STT7P2UH7 pinout, STT7P2UH7 application, or STT7P2UH7 equivalent, key selection criteria include its low-threshold gate drive (V_GS(th) = 0.4–1.0 V), high avalanche ruggedness, SOT23-6L thermal performance (R_thj-pcb = 78 °C/W), and pulsed current capability up to 28 A - critical for battery-powered DC-DC converters and USB port protection.

Technical Context

This device operates as a high-side load switch with reversed polarity conventions: V_GS negative relative to source, ID flows source-to-drain. Its STripFET H7 trench structure delivers optimized charge balance, yielding C_iss = 2390 pF, Q_g = 22 nC, and fast switching (t_d(off) = 128 ns, t_f = 84.5 ns) under 4.5 V gate drive.

Thermal design relies on PCB conduction: R_thj-pcb = 78 °C/W on 1 inch² FR-4 with 2 oz Cu. The integrated body diode supports synchronous rectification with V_SD = 1 V at I_SD = 1 A and t_rr = 15.8 ns, enabling efficient reverse-current handling in buck converters and OR-ing circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	20 V - Maximum drain-source blocking voltage; defines safe operation in 12 V rail switching and automotive accessory loads.
R_DS(on) typ.	0.0195 Ω @ V_GS = 4.5 V - Enables <150 mW conduction loss at 7 A, suitable for thermally constrained portable designs.
I_D cont.	7 A @ T_pcb = 25 °C - Continuous current rating verified under standard JEDEC PCB thermal test condition.
Q_g	22 nC - Total gate charge determines driver strength requirement; enables efficient 1 MHz+ switching with low-power gate drivers.
C_iss	2390 pF - Input capacitance impacts gate drive loop stability and EMI; low value supports clean turn-on in noise-sensitive applications.
t_rr	15.8 ns - Reverse recovery time of integrated body diode; minimizes switching loss and voltage overshoot in inductive switching.

Pinout & Package

SOT23-6L is a 6-pin surface-mount package with exposed drain pad for thermal enhancement and compact footprint (2.926 mm × 1.626 mm × 1.10 mm). Pin 1–6 follow standard SOT23-6L pinout with pins 1, 2, 3 assigned to source terminals, pin 4 to gate, and pins 5, 6 to drain.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (S1)	Source	Primary source connection; electrically tied to pins 2 and 3 for low-inductance parallel routing.
Pin 2 (S2)	Source	Secondary source terminal; reduces bond-wire inductance and improves current sharing in high-di/dt switching.
Pin 3 (S3)	Source	Third source terminal; enhances thermal path to PCB copper and lowers effective R_DS(on) in multi-layer layouts.
Pin 4 (G)	Gate	Control input; requires negative V_GS for turn-on; low Q_g enables direct microcontroller drive at 3.3 V logic levels.
Pin 5 (D1)	Drain	Main drain connection; tied internally to pin 6 and exposed pad for optimal heat dissipation to PCB ground plane.
Pin 6 (D2)	Drain	Secondary drain terminal; reduces package inductance and improves SOA during avalanche events.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	0.0195 Ω typ. at 4.5 V - Reduces conduction loss by >30% vs. legacy SOT23-6L P-MOSFETs, extending battery runtime in portable systems.
Low gate charge	Q_g = 22 nC - Enables use of low-power gate drivers and reduces dynamic loss in high-frequency DC-DC controllers.
High avalanche energy rating	Specified for unclamped inductive switching - Ensures robustness in motor drive and relay control without external snubbers.
ECOPACK® compliant	Meets RoHS and halogen-free requirements - Supports compliance in consumer, industrial, and automotive end equipment.

Applications

Battery Load Switch

USB Port Protection

Use Scenario: Isolating Li-ion battery from system during sleep or fault conditions in wearables and IoT sensors.

IC Role / Device Role: High-side P-channel switch controlling power delivery path between battery and PMIC.

Use Value: 0.0195 Ω R_DS(on) limits dropout to <140 mV at 7 A, preserving battery voltage headroom and runtime.

Use Scenario: Preventing backfeed and overcurrent damage when multiple USB sources are connected to a single device.

IC Role / Device Role: Reverse-current blocking switch placed between VBUS and downstream power rail.

Use Value: Fast 15.8 ns t_rr and low C_oss minimize voltage spikes during hot-plug events, meeting USB-IF ESD immunity requirements.

DC-DC Converter High-Side Switch

Automotive Accessory Control

Use Scenario: Synchronous rectification in 5 V/3.3 V buck converters for FPGA or MCU core supplies.

IC Role / Device Role: Low-side switch in synchronous topology, leveraging integrated body diode for freewheeling.

Use Value: 1 V V_SD at 1 A and 28 A pulsed I_SDM support high-efficiency light-load operation without external Schottky diode.

Use Scenario: Controlling power to infotainment USB ports, LED lighting, or HVAC actuators in 12 V vehicle subsystems.

IC Role / Device Role: Load switch with built-in overtemperature and short-circuit protection via external circuitry.

Use Value: 150 °C T_j max and 78 °C/W R_thj-pcb allow reliable operation in under-hood ambient up to 105 °C with minimal heatsinking.

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel load switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMG2305UVT-7	R_DS(on) = 0.045 Ω @ 4.5 V; higher threshold (V_GS(th) = 0.5–1.2 V); SOT-23-6 package	Lower current rating (4.2 A); less suitable for 7 A continuous loads	Prefer for cost-sensitive, lower-current applications where board space matches SOT-23-6 footprint.
SI2305DS-T1-GE3	R_DS(on) = 0.04 Ω @ 4.5 V; Q_g = 12 nC; same SOT-23-6L package	Higher R_DS(on) increases conduction loss by ~105% at 7 A; lower Q_g eases gate drive	Select when gate drive power is critical and thermal margin allows higher I²R loss.

Compared with DMG2305UVT-7 and SI2305DS-T1-GE3, STT7P2UH7 delivers superior conduction efficiency and thermal performance at full 7 A load, making it optimal for space-constrained, high-current battery management and USB-C PD applications where low dropout and reliability are prioritized.

Availability

STT7P2UH7 is available at Aetrix Electronics and suitable for battery load switching, USB port protection, DC-DC converter high-side control, and automotive accessory power management requiring stable component supply and long-term lifecycle support.

Supply support for STT7P2UH7 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The STripFET™ H7 Power MOSFET product line targets high-efficiency, high-density power conversion and load switching, emphasizing low R_DS(on), fast switching, and ruggedness in miniature packages like SOT23-6L.

FAQ

What is the maximum gate-source voltage for safe operation?

The absolute maximum V_GS is ±8 V per datasheet Table 2. Exceeding this risks oxide breakdown. For reliable 3.3 V or 5 V microcontroller drive, a gate resistor and optional Zener clamp are recommended to limit transient overshoot during fast switching transitions.

Can STT7P2UH7 be used in linear regulation mode?

No - it is not characterized or rated for linear (active-region) operation. Its Safe Operating Area (SOA) curve in Figure 2 shows limited pulse capability only; sustained linear use causes thermal runaway due to positive temperature coefficient of R_DS(on) and insufficient thermal derating.

How does the SOT23-6L package improve thermal performance over standard SOT23-3?

SOT23-6L provides three dedicated source pins and dual drain connections, reducing package resistance and inductance. Combined with the exposed drain pad, it achieves R_thj-pcb = 78 °C/W - ~40% lower than typical SOT23-3 P-MOSFETs - enabling higher continuous current in the same footprint.

Is the body diode suitable for synchronous rectification?

Yes - the body diode has t_rr = 15.8 ns and Q_rr = 5.9 nC, enabling efficient synchronous rectification in buck converters up to ~2 MHz. However, external Schottky diodes may still be preferred for ultra-low forward drop where V_SD > 1 V is unacceptable.

STT7P2UH7 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™

Package/Case:: SOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 20 V

Current - Continuous Drain (Id) @ 25°C:: 7A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 1.5V, 4.5V

Rds On (Max) @ Id, Vgs:: 22.5mOhm @ 3.5A, 4.5V

Vgs(th) (Max) @ Id:: 1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 22 nC @ 4.5 V

Vgs (Max):: ±8V

Input Capacitance (Ciss) (Max) @ Vds:: 2390 pF @ 16 V

FET Feature:: -

Power Dissipation (Max):: 1.6W (Tc)

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-6

STT7P2UH7 FAQ

1.How can I place an order for STT7P2UH7 through Aetrix?

Please submit a Request for Quotation (RFQ) for STT7P2UH7 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 STT7P2UH7 reliable?

The price and inventory of STT7P2UH7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STT7P2UH7 is usually 5 days.

3.What payment methods are accepted for STT7P2UH7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STT7P2UH7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STT7P2UH7?

STT7P2UH7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STT7P2UH7 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 STT7P2UH7?

For technical support, including STT7P2UH7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STT7P2UH7 requirements.

6.How does Aetrix verify that STT7P2UH7 is sourced from the original manufacturer or authorized distributors?

All STT7P2UH7 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 STT7P2UH7 meets industry standards.

7.What is the process for return or replacement of STT7P2UH7?

All STT7P2UH7 units undergo pre-shipment inspection (PSI). If there is an issue with STT7P2UH7, 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 STT7P2UH7 part is unused and in its original packaging.

Return procedure for STT7P2UH7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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