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Silicon Labs TSM6025AEUR+
- Part No.:
- TSM6025AEUR+
- Manufacturer:
- Silicon Labs
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TSM6025AEUR+.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,336
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Product details
Overview
TSM6025AEUR+ from Silicon Laboratories is a 3-terminal, series-mode 2.5V precision voltage reference with 0.2% initial accuracy, 15ppm/°C max temperature coefficient, and 35μA max quiescent current. It operates over –40°C to +85°C in a 3-pin SOT23 package and delivers ±500μA output current for high-accuracy data acquisition and battery-powered instrumentation.
For engineers reviewing the TSM6025AEUR+ datasheet, TSM6025AEUR+ pinout, TSM6025AEUR+ application, or TSM6025AEUR+ equivalent, key selection criteria include low dropout (100mV at 500μA), stable operation up to 2200pF capacitive load, and minimal supply current variation (<1μA/V) across input voltage range - critical for low-power, precision analog systems.
Technical Context
The TSM6025AEUR+ integrates a proprietary low-drift 1.25V bandgap core amplified to 2.5V, enabling 0.2% initial accuracy and 15ppm/°C max tempco over –40°C to +85°C. Its series-mode architecture eliminates external bias resistors and ensures supply current remains unaffected by VIN changes.
Internal frequency compensation enables unconditional stability with capacitive loads up to 2200pF without external compensation. The output stage supports bidirectional ±500μA current delivery with ≤200mV dropout, supporting precision ADC/DAC biasing and sensor excitation in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±0.2% (2.495–2.505 V) at +25°C - ensures direct compatibility with 2.5V ADC references and DAC full-scale calibration. |
| Tempco | 15 ppm/°C max (–40°C to +85°C) - limits output drift to ≤0.75 mV over full industrial temperature range. |
| Quiescent Current | 35 μA max - enables multi-year battery life in portable instrumentation and wireless sensor nodes. |
| Dropout Voltage | 100 mV at 500 μA load - allows operation from 2.6V supplies, ideal for single-cell Li-ion or 3V coin-cell systems. |
| Load Regulation | 0.14 μV/μA sourcing - maintains <70 μV error across full ±500 μA load swing, critical for ratiometric sensor interfaces. |
| Line Regulation | 25 μV/V - guarantees <312.5 μV output change over 12.4V input range, simplifying unregulated supply designs. |
| Noise (0.1–10 Hz) | 50 μVP-P - supports 16-bit+ resolution in low-frequency precision measurement front-ends. |
Pinout & Package
Package: 3-pin SOT23 (SC-59), 1.3mm × 2.9mm footprint, surface-mount, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 2.7V to 12.6V input; internal series regulation enables stable 2.5V output independent of VIN variation. |
| 2 (OUT) | +2.5V Precision Output | Delivers regulated 2.5V with ±500μA sourcing/sinking capability; stable with 0–2200pF capacitive loads. |
| 3 (GND) | Analog Ground Reference | Low-impedance return path for reference current and load current; must be connected directly to clean system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-for-pin replacement for MAX6025A | Direct drop-in substitution in existing designs using MAX6025A, eliminating PCB redesign and qualification effort. |
| Series-mode architecture | Eliminates external bias resistor and associated tolerance/temperature errors - improves long-term stability and power efficiency. |
| Capacitive-load stability | Operates stably with 0–2200pF output capacitance - removes need for external compensation and simplifies layout for noise-sensitive applications. |
| Low supply current drift | ΔIIN/ΔVIN < 1 μA/V - ensures consistent power budget across varying input rails, essential for energy harvesting and battery-gauging systems. |
| Thermal hysteresis | 130 ppm typical - contributes only ±0.33 mV error after thermal cycling, preserving calibration integrity in field-deployed equipment. |
Applications
| Industrial Process Transmitters | Data Acquisition Systems |
|---|---|
Use Scenario: 4–20mA loop-powered smart transmitters measuring pressure, temperature, or flow in hazardous environments. IC Role / Device Role / Timing Role: Provides stable 2.5V reference for DAC output scaling and ADC input full-scale calibration. Use Value: 0.2% initial accuracy and 15ppm/°C tempco ensure transmitter output accuracy remains within ±0.1% FS over –40°C to +85°C ambient. | Use Scenario: Portable handheld multimeters and benchtop DAQ units requiring high-resolution analog front-ends. IC Role / Device Role / Timing Role: Supplies precision reference voltage for successive-approximation ADCs and programmable gain amplifiers. Use Value: 50μVP-P low-frequency noise and 0.14μV/μA load regulation enable true 16-bit effective resolution under dynamic loading. |
| Battery-Operated Medical Sensors | Precision 3V/5V Embedded Systems |
Use Scenario: Wearable ECG/SpO₂ monitors powered by single CR2032 coin cell or rechargeable Li-ion. IC Role / Device Role / Timing Role: Generates stable 2.5V bias for analog sensor signal conditioning and low-power microcontroller ADC reference. Use Value: 35μA max quiescent current extends battery life beyond 5 years in sleep-dominated operation, while 100mV dropout enables operation down to 2.6V. | Use Scenario: Industrial PLC I/O modules and embedded controllers requiring robust analog sensing in 3.3V or 5V domains. IC Role / Device Role / Timing Role: Serves as primary voltage reference for isolated analog inputs, RTD bridges, and precision current sources. Use Value: 25μV/V line regulation and 2200pF capacitive-load tolerance simplify power supply design and eliminate output oscillation risks in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6025AUR+ (Maxim Integrated) | Identical pinout, same 0.2% initial accuracy and 15ppm/°C tempco; higher 45μA max quiescent current. | Legacy qualification status in automotive and military programs; longer historical supply chain traceability. | Select when legacy compliance documentation or dual-sourcing against Maxim's discontinued production is required. |
| REF3025AIDBZR (Texas Instruments) | Same 2.5V output and SOT23-3 package; 0.2% initial accuracy but 50ppm/°C max tempco; 50μA max IQ. | Better PSRR (90dB vs 82dB) and lower 1/f noise (35μVP-P), but higher thermal drift limits use in wide-temperature industrial settings. | Select for ultra-low-noise audio or medical front-ends where temperature range is limited to 0°C–70°C. |
Compared with MAX6025AUR+, TSM6025AEUR+ offers lower quiescent current (35μA vs 45μA) and tighter tempco consistency across –40°C to +85°C; versus REF3025AIDBZR, it provides superior thermal stability (15ppm/°C vs 50ppm/°C) at the cost of slightly higher broadband noise - making it optimal for wide-temperature, battery-constrained precision measurement.
Availability
TSM6025AEUR+ is available at Aetrix Electronics and suitable for industrial process transmitters, portable data acquisition systems, and battery-operated medical sensors requiring stable component supply, long-lifecycle support, and guaranteed lead-free packaging.
Supply support for TSM6025AEUR+ 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
Silicon Laboratories is a U.S.-based semiconductor company specializing in precision analog, timing, and mixed-signal ICs for industrial, communications, and consumer applications.
The TSM6025AEUR+ belongs to Silicon Labs' precision voltage reference product line, engineered for low-power, high-accuracy analog systems where stability, small size, and supply independence are critical - especially in battery-powered and thermally demanding environments.
FAQ
What is the maximum capacitive load the TSM6025AEUR+ can drive while remaining stable?
The TSM6025AEUR+ is stable with output capacitive loads up to 2200pF (2.2nF) without requiring external compensation components. This specification is guaranteed by design and verified across temperature and process corners. Unlike many references that require minimum ESR or specific capacitor types, the TSM6025AEUR+ maintains phase margin across ceramic, tantalum, and polymer capacitors within this range - simplifying layout and reducing bill-of-materials count in space-constrained designs.
Does the TSM6025AEUR+ require an input bypass capacitor?
Yes, the TSM6025AEUR+ requires a 0.1μF ceramic capacitor between IN and GND, placed as close as possible to the device pins. This capacitor minimizes high-frequency noise coupling and improves line-transient response, especially during fast input voltage steps. The datasheet specifies this as mandatory for optimal performance - omitting it may cause overshoot or instability during supply ramp-up or ripple events, degrading reference accuracy in sensitive measurement circuits.
What is the dropout voltage specification for the TSM6025AEUR+ at full load?
The dropout voltage for the TSM6025AEUR+ is 100mV maximum at 500μA output current and +25°C. At worst-case conditions (–40°C or +85°C), it increases to 200mV. This means the device regulates properly with as little as 2.6V input when sourcing 500μA - enabling reliable operation from single-cell lithium batteries (nominal 3.0–3.7V) and low-voltage DC-DC outputs. Dropout is defined as the minimum (VIN – VOUT) differential needed to maintain output voltage within 0.2% of nominal.
Can the TSM6025AEUR+ sink current, and how much?
Yes, the TSM6025AEUR+ can both source and sink up to ±500μA continuously. Sinking capability allows it to actively pull the output node low during transient load conditions or interface with current-steering DACs and active filter stages. This bidirectional drive strength ensures minimal output voltage deviation during rapid load transitions - a key advantage over shunt references or older series references with limited sink current.
Is the TSM6025AEUR+ RoHS-compliant and lead-free?
Yes, the TSM6025AEUR+ is fully RoHS-compliant and supplied exclusively in lead-free packaging per Silicon Labs' global lead-free program. The "+" suffix in the part number explicitly denotes lead-free, halogen-free, and green-compliant construction. The SOT23 package uses matte tin (Sn) termination with no lead content, meeting JEDEC J-STD-020 reflow profile requirements and qualifying for standard Pb-free assembly processes.
TSM6025AEUR+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Strip
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 50µVp-p
- Noise - 10Hz to 10kHz:
- 125µVrms
- Voltage - Input:
- 2.7V ~ 12.6V
- Current - Supply:
- 35µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
TSM6025AEUR+ FAQ
1.How can I place an order for TSM6025AEUR+ through Aetrix?
Please submit a Request for Quotation (RFQ) for TSM6025AEUR+ 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 TSM6025AEUR+ reliable?
The price and inventory of TSM6025AEUR+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSM6025AEUR+ is usually 5 days.
3.What payment methods are accepted for TSM6025AEUR+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSM6025AEUR+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSM6025AEUR+?
TSM6025AEUR+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSM6025AEUR+ 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 TSM6025AEUR+?
For technical support, including TSM6025AEUR+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSM6025AEUR+ requirements.
6.How does Aetrix verify that TSM6025AEUR+ is sourced from the original manufacturer or authorized distributors?
All TSM6025AEUR+ 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 TSM6025AEUR+ meets industry standards.
7.What is the process for return or replacement of TSM6025AEUR+?
All TSM6025AEUR+ units undergo pre-shipment inspection (PSI). If there is an issue with TSM6025AEUR+, 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 TSM6025AEUR+ part is unused and in its original packaging.
Return procedure for TSM6025AEUR+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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