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Vishay Siliconix SIP4280DT-1-T1-E3
- Part No.:
- SIP4280DT-1-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
SIP4280DT-1-T1-E3.pdf
- Description:
- IC PWR SWTCH P-CHAN 1:1 TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,751
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Product details
Overview
SIP4280DT-1-T1-E3 from Vishay Siliconix is a P-channel MOSFET high-side load switch with slew-rate-controlled turn-on (1 ms typical), 1.8 V to 5.5 V input range, 80 mΩ RDS(ON) at 5 V, under-voltage lockout, and TTL/CMOS-compatible enable logic - used in portable electronics for inrush current limiting and power sequencing.
For engineers reviewing the SIP4280DT-1-T1-E3 datasheet, SIP4280DT-1-T1-E3 pinout, SIP4280DT-1-T1-E3 application, or SIP4280DT-1-T1-E3 equivalent, key selection criteria include controlled turn-on time, low quiescent current (2.5 µA), SOT23-6L package compatibility, and absence of integrated output discharge - distinguishing it from the SiP4280-3 variant.
Technical Context
The SIP4280DT-1-T1-E3 implements a linear gate-drive ramp to achieve 1 ms typical output voltage rise time, reducing inrush current without requiring large input capacitance. Its under-voltage lockout activates below 1.4 V (typical) to prevent MOSFET saturation and ensure safe disable behavior.
It operates as a single-polarity high-side switch with active-high ON/OFF control, no internal pull-down on OUT, and relies on external circuitry for load discharge during shutdown - unlike the SiP4280-3 which integrates a 150 Ω pull-down resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports both 3 V and 5 V system rails without level-shifting |
| RDS(ON) @ 5 V | 80 mΩ typical - enables ≤2.3 A continuous load current with <185 mW conduction loss |
| Turn-On Rise Time | 1000 µs typical - limits inrush current to ~1.5 A for 10 Ω load, easing capacitor sizing |
| Quiescent Current | 2.5 µA typical - minimizes standby power draw in battery-powered devices |
| UVLO Threshold | 1.4 V typical falling - disables switch before VIN drops into MOSFET linear region, preventing thermal stress |
| ESD Rating | ±4 kV HBM - provides robust handling margin for portable assembly environments |
| Operating Temp | –40 °C to +85 °C - qualified for industrial and consumer portable equipment operation |
Pinout & Package
Supplied in a 6-pin SOT23-6L package (JEDEC MO-193 compliant), 2.95 mm × 2.85 mm × 1.00 mm body, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | P-channel MOSFET drain | Switched output node; connects to load; no internal discharge path |
| 2, 5 (GND) | Power and signal ground reference | Dual ground pins reduce impedance and improve noise immunity |
| 3 (ON/OFF) | Enable control input | Active-high TTL/CMOS-compatible logic; <1 µA leakage when high |
| 4, 6 (VIN) | P-channel MOSFET source | High-side input rail connection; must be ≥ VOUT to avoid forward-biasing intrinsic body diode |
Key Features
| Feature | Design Value |
|---|---|
| Slew-rate-limited turn-on | 1 ms typical rise time prevents >2 A inrush into 10 µF capacitive loads without bulk input capacitance |
| Low RDS(ON) at 1.8 V | 160 mΩ typical - maintains <300 mW loss at 1.5 A, enabling use in low-voltage battery systems |
| Under-voltage lockout | 1.4 V threshold with 250 mV hysteresis - ensures clean disable before MOSFET enters resistive conduction zone |
| Ultra-low quiescent current | 2.5 µA typical - extends battery life by >1 year in always-on standby applications drawing <10 µA system current |
| TTL/CMOS logic compatibility | VIH = 2.0 V min at VIN ≤ 4.2 V - interfaces directly with 2.5 V and 3.3 V microcontrollers without level shifters |
Applications
| Cellular Telephones | Digital Still Cameras |
|---|---|
Use Scenario: Powering RF front-end modules and camera sensor subsystems during active mode while disabling them in sleep. IC Role / Device Role / Timing Role: High-side load switch controlling power domain sequencing with controlled voltage ramp to avoid supply droop. Use Value: 1 ms slew rate limits inrush to <1.2 A, eliminating need for ≥4.7 µF input ceramic capacitor and saving PCB area. | Use Scenario: Enabling flash LED drivers and image sensor bias supplies only during capture sequence. IC Role / Device Role / Timing Role: Load switch isolating high-current peripherals to minimize standby leakage and enable fast power cycling. Use Value: 2.5 µA quiescent current reduces total system standby draw to <5 µA, extending lithium-ion battery shelf life. |
| Notebook Computers | Personal Digital Assistants (PDA) |
Use Scenario: Managing power to USB ports, card readers, and auxiliary displays in clamshell-open/closed states. IC Role / Device Role / Timing Role: High-side switch enforcing hot-swap compliance via controlled turn-on and UVLO protection. Use Value: UVLO activation at 1.4 V prevents erratic behavior during brown-out conditions common in multi-rail notebook power systems. | Use Scenario: Sequencing power to GPS receivers, Bluetooth radios, and touch controllers based on user activity detection. IC Role / Device Role / Timing Role: Low-voltage load switch operating down to 1.8 V input while maintaining <120 mΩ RDS(ON). Use Value: 1.8 V minimum operating voltage allows direct connection to single-cell Li-ion (2.7–4.2 V) without pre-regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiP4280DT-3-T1-E3 | 100 µs turn-on time, integrated 150 Ω output pull-down | Required where rapid load discharge during shutdown is needed (e.g., bus termination, I²C pull-ups) | Select SIP4280DT-3-T1-E3 only if fast output discharge is mandatory; SIP4280DT-1-T1-E3 avoids unnecessary discharge current in static loads |
| TPS22967DSGR | 2.7–5.5 V range, 44 mΩ RDS(ON), no UVLO, 350 µs rise time | Lacks UVLO and ESD rating; requires external undervoltage monitoring | Choose TPS22967DSGR only for cost-sensitive 3.3 V–5 V systems where UVLO and ±4 kV ESD are not required |
Compared with SIP4280DT-1-T1-E3, the SiP4280DT-3-T1-E3 adds output discharge but sacrifices turn-on softness; the TPS22967DSGR offers lower RDS(ON) but removes critical protection features - making SIP4280DT-1-T1-E3 optimal for robust, low-inrush, battery-critical designs.
Availability
SIP4280DT-1-T1-E3 is available at Aetrix Electronics and suitable for cellular telephones, digital still cameras, and personal digital assistants requiring stable component supply despite end-of-life status through selective legacy sourcing and verified inventory channels.
Supply support for SIP4280DT-1-T1-E3 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
Vishay Siliconix is a global semiconductor manufacturer specializing in discrete power MOSFETs, diodes, optoelectronics, and precision resistors - with emphasis on high-reliability, high-efficiency power management components.
The SiP4280 product line delivers slew-controlled high-side load switches optimized for portable electronics requiring inrush suppression, low quiescent power, and robust overvoltage/undervoltage protection - targeting space-constrained battery-powered systems.
FAQ
What is the maximum continuous load current supported by SIP4280DT-1-T1-E3?
The SIP4280DT-1-T1-E3 supports up to 2.3 A continuous current per absolute maximum ratings, limited by thermal dissipation in the SOT23-6L package. At 5 V input and 25 °C ambient, its 80 mΩ RDS(ON) yields ~460 mW conduction loss - requiring derating above 70 °C ambient per the 5.5 mW/°C θJA spec. Real-world current capability depends on PCB copper area and airflow.
Does SIP4280DT-1-T1-E3 include an internal output discharge path?
No, SIP4280DT-1-T1-E3 does not integrate an output pull-down resistor. Unlike the SiP4280-3 variant, it lacks the 150 Ω internal discharge path - meaning external circuitry (e.g., a 10–100 kΩ resistor to GND) must be added if rapid load discharge is required after shutdown. This simplifies design for static loads but mandates attention for bus-powered peripherals.
What logic levels are compatible with the ON/OFF pin of SIP4280DT-1-T1-E3?
The ON/OFF pin of SIP4280DT-1-T1-E3 accepts TTL and CMOS logic: VIH is 2.0 V minimum for VIN ≤ 4.2 V and 2.4 V minimum for VIN > 4.2 V; VIL is 0.8 V maximum across 2.7–5.5 V VIN range. It draws <1 µA leakage when driven high, enabling direct interface with 2.5 V, 3.3 V, and 5 V microcontrollers without level translation.
How does the under-voltage lockout (UVLO) function in SIP4280DT-1-T1-E3?
The UVLO in SIP4280DT-1-T1-E3 disables the switch when VIN falls below 1.4 V (typical), with 250 mV hysteresis - re-enabling only when VIN rises above 1.65 V. This prevents the P-channel MOSFET from operating in its linear region, avoiding thermal runaway and ensuring clean, predictable shutdown during brown-out events in battery-powered systems.
Is SIP4280DT-1-T1-E3 still in production, and what is its lifecycle status?
SIP4280DT-1-T1-E3 was declared End of Life by Vishay Siliconix in December 2014. However, Aetrix Electronics maintains access to verified legacy inventory with full traceability and supports ongoing production programs through coordinated lifecycle management - including obsolescence forecasting, cross-reference validation, and last-time-buy planning for this component.
SIP4280DT-1-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 1.8V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2.3A
- Rds On (Typ):
- 80mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
SIP4280DT-1-T1-E3 FAQ
1.How can I place an order for SIP4280DT-1-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP4280DT-1-T1-E3 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 SIP4280DT-1-T1-E3 reliable?
The price and inventory of SIP4280DT-1-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP4280DT-1-T1-E3 is usually 5 days.
3.What payment methods are accepted for SIP4280DT-1-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP4280DT-1-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP4280DT-1-T1-E3?
SIP4280DT-1-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP4280DT-1-T1-E3 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 SIP4280DT-1-T1-E3?
For technical support, including SIP4280DT-1-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP4280DT-1-T1-E3 requirements.
6.How does Aetrix verify that SIP4280DT-1-T1-E3 is sourced from the original manufacturer or authorized distributors?
All SIP4280DT-1-T1-E3 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 SIP4280DT-1-T1-E3 meets industry standards.
7.What is the process for return or replacement of SIP4280DT-1-T1-E3?
All SIP4280DT-1-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP4280DT-1-T1-E3, 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 SIP4280DT-1-T1-E3 part is unused and in its original packaging.
Return procedure for SIP4280DT-1-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SIP4280DT-1-T1-E3 Tags
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