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STMicroelectronics STM1061N30WX6F
- Part No.:
- STM1061N30WX6F
- Manufacturer:
- STMicroelectronics
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
STM1061N30WX6F.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,275
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Product details
Overview
STM1061N30WX6F from STMicroelectronics is a low-power, factory-trimmed voltage detector IC with 3.0V ±2% detection threshold, open-drain active-low output, 0.9µA typical supply current at 3.0V, and guaranteed operation down to VCC = 0.7V. It monitors system power rails in portable electronics, microcontroller reset circuits, and battery-powered devices requiring precise undervoltage supervision.
For engineers reviewing the STM1061N30WX6F datasheet, STM1061N30WX6F pinout, STM1061N30WX6F application, or STM1061N30WX6F equivalent, this page delivers verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for voltage supervisor selection.
Technical Context
The STM1061N30WX6F integrates a precision bandgap reference and comparator to monitor VCC against a fixed 3.0V detect threshold (VTH–), with hysteresis of 0.06V (±3% of VTH–). Its open-drain N-channel output sinks up to 22mA at VCC = 3.0V and remains functional even when VCC drops to 0.7V - enabling reliable reset assertion during brown-out conditions.
It features transient immunity against negative-going VCC glitches up to 100µs at 100mV overdrive, and exhibits ±100 ppm/°C temperature coefficient on threshold voltage. Detect delay (tPD) is 25µs and release delay (tPR) ranges from 30–200µs, ensuring stable reset timing across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detect Threshold | 3.0V ±2% (2.94V–3.06V at 25°C); ensures accurate 3.3V rail supervision with margin for noise and drift |
| Supply Current | 0.9µA typ @ 3.0V; enables multi-year battery life in coin-cell–powered IoT sensors and wearables |
| Operating Voltage | 0.7V to 6.0V; supports valid reset assertion even during deep brown-out before system shutdown |
| Output Type | Open-drain active-low; allows wired-OR reset bus sharing and interface to higher-voltage logic (up to 6V pull-up) |
| Hysteresis | 0.06V (2% of VTH–); prevents chatter during slow-rising/falling supply edges near threshold |
| Temp Range | –40°C to +85°C; qualified for industrial and extended commercial environments |
| Delay Times | tPD = 25µs (detect), tPR = 30–200µs (release); provides deterministic reset timing without external RC components |
Pinout & Package
STM1061N30WX6F is housed in a RoHS-compliant SOT23-3 (WX) package - a 3-pin, surface-mount, lead-free outline measuring 2.9mm × 1.3mm × 1.0mm (D × E × A2), optimized for high-density PCB layouts in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Open-drain active-low output | Sinks current when VCC < 3.0V; requires external pull-up (e.g., 10kΩ to 3.3V or 5V); enables shared reset busing |
| 2 (VCC) | Supply input & monitored voltage rail | Both powers the IC and serves as detection input; valid operation starts at 0.7V, supporting ultra-low-VCC supervision |
| 3 (VSS) | Ground reference | System ground return path; must be low-impedance and co-located with bypass capacitor for transient immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.0V threshold | Eliminates external resistor divider; reduces BOM count and layout area in MCU reset circuits |
| 0.9µA supply current | Enables direct integration into always-on subsystems (e.g., RTC supervisors) without measurable battery drain |
| VCC = 0.7V output guarantee | Ensures reset remains asserted through full power collapse - critical for non-volatile state preservation |
| Power supply transient immunity | Rejects sub-100µs negative glitches on VCC; avoids spurious resets in noisy DC/DC converter environments |
| SOT23-3 footprint compatibility | Direct drop-in replacement for legacy 3-pin voltage supervisors (e.g., APX803, MCP102) without board rework |
Applications
| Microcontroller Reset Supervision | Battery Voltage Monitoring |
|---|---|
|
Use Scenario: Ensuring clean, glitch-free reset assertion for ARM Cortex-M0+ MCUs during cold start or brown-out. IC Role / Device Role / Timing Role: Voltage detector providing active-low reset signal synchronized to 3.3V rail collapse, with 25µs detect delay and hysteresis to prevent bounce. Use Value: Guarantees MCU enters known state before clock or flash initialization - eliminating boot failures in field-deployed edge nodes. |
Use Scenario: Monitoring Li-ion cell voltage (nominal 3.7V) to trigger low-battery warning or graceful shutdown at 3.0V. IC Role / Device Role / Timing Role: Precision threshold detector interfaced to GPIO interrupt line; asserts OUT when cell voltage drops below 3.0V ±2%. Use Value: Delivers consistent, temperature-stable cutoff point across –40°C to +85°C - extending usable battery capacity by avoiding premature shutdown. |
| DC/DC Converter Enable Control | Industrial Sensor Node Power Sequencing |
|
Use Scenario: Enabling/disabling a 3.3V buck converter based on upstream 5V rail stability in multi-rail power systems. IC Role / Device Role / Timing Role: Supervisor monitoring 5V input; its open-drain OUT drives EN pin of DC/DC via pull-up to 3.3V, enabling power-good sequencing. Use Value: Prevents downstream regulator activation until primary rail reaches valid level - eliminating inrush current conflicts and startup faults. |
Use Scenario: Coordinating wake-up of BLE radio, ADC, and flash memory in a battery-powered environmental sensor node. IC Role / Device Role / Timing Role: Low-quiescent supervisor asserting reset to all peripherals simultaneously upon VCC recovery, with 30–200µs release delay for controlled ramp-up. Use Value: Eliminates need for discrete RC timing networks or firmware-based delay loops - reducing component count and firmware complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APX803S-30SA-7 | Same 3.0V threshold, but push-pull output (not open-drain); 1.6µA supply current; no VCC = 0.7V guarantee | Requires redesign of reset bus topology (no wired-OR); less suitable for multi-source reset arbitration | Select only if push-pull drive is required and VCC > 1.0V during reset assertion is assured |
| MCP102-300I/TT | 3.0V threshold, open-drain output, but 2.5µA supply current; ±3% accuracy; max operating voltage 6.5V | Higher quiescent draw reduces battery lifetime in ultra-low-power nodes; wider tolerance increases risk of false reset | Acceptable for cost-sensitive industrial controls where µA-level savings are secondary to procurement availability |
Compared with APX803S-30SA-7 and MCP102-300I/TT, STM1061N30WX6F uniquely combines ultra-low 0.9µA current, guaranteed 0.7V operation, and open-drain flexibility - making it optimal for battery-critical, multi-supervisor, and brown-out-resilient designs.
Availability
STM1061N30WX6F is available at Aetrix Electronics and suitable for microcontroller reset supervision, battery voltage monitoring, DC/DC enable control, and industrial sensor node power sequencing requiring stable component supply across automotive-grade temperature ranges and long-lifecycle programs.
Supply support for STM1061N30WX6F 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, MCU, power, and sensing solutions for industrial, automotive, and consumer markets.
STM1061 belongs to ST's low-power voltage supervisor product line, engineered specifically for reliable, zero-component, single-rail power monitoring in space- and energy-constrained portable and embedded systems.
FAQ
What is the minimum VCC voltage at which STM1061N30WX6F guarantees correct output assertion?
The STM1061N30WX6F guarantees valid active-low output assertion down to VCC = 0.7V at 25°C, as confirmed in Section 3.1 and Table 5 of the official datasheet. This enables robust reset signaling during deep brown-out events where other supervisors fail, preserving system state integrity prior to complete power loss.
Can STM1061N30WX6F drive a 5V logic input directly?
Yes - its open-drain output supports pull-up to any voltage up to 6.0V, including 5V logic rails. A 10kΩ pull-up resistor to 5V is sufficient per Figure 6 and Section 3.1. The output transistor sinks ≥22mA at VCC = 3.0V, ensuring solid logic-low levels even with capacitive or leakage loads on the 5V bus.
Does STM1061N30WX6F require an external bypass capacitor?
Yes - a 0.1µF ceramic capacitor placed as close as possible to the VCC pin is explicitly recommended in Section 3.2 to enhance immunity against fast negative-going transients. This capacitor stabilizes local supply impedance and suppresses high-frequency noise that could otherwise trigger false resets.
How does hysteresis improve reliability in STM1061N30WX6F applications?
Hysteresis (0.06V typical) creates separate detect (VTH– = 3.0V) and release (VTH+ = 3.06V) thresholds, preventing output oscillation when VCC lingers near the trip point due to ripple, noise, or slow ramping. This eliminates multiple reset toggles during marginal supply conditions - a critical requirement for deterministic MCU boot behavior.
STM1061N30WX6F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 30µs Typical Propagation Delay
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
STM1061N30WX6F FAQ
1.How can I place an order for STM1061N30WX6F through Aetrix?
Please submit a Request for Quotation (RFQ) for STM1061N30WX6F 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 STM1061N30WX6F reliable?
The price and inventory of STM1061N30WX6F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM1061N30WX6F is usually 5 days.
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STM1061N30WX6F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM1061N30WX6F 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 STM1061N30WX6F?
For technical support, including STM1061N30WX6F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM1061N30WX6F requirements.
6.How does Aetrix verify that STM1061N30WX6F is sourced from the original manufacturer or authorized distributors?
All STM1061N30WX6F 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 STM1061N30WX6F meets industry standards.
7.What is the process for return or replacement of STM1061N30WX6F?
All STM1061N30WX6F units undergo pre-shipment inspection (PSI). If there is an issue with STM1061N30WX6F, 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 STM1061N30WX6F part is unused and in its original packaging.
Return procedure for STM1061N30WX6F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM1061N30WX6F Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
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