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Analog Devices Inc./Maxim Integrated MAX6037CAUK30+T
- Part No.:
- MAX6037CAUK30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6037CAUK30+T.pdf
- Description:
- IC VREF SERIES 0.5% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,463
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Product details
Overview
MAX6037CAUK30+T from Maxim Integrated is a low-dropout, micropower voltage reference with fixed 3.0V output, ±0.5% initial accuracy, 50ppm/°C max temperature coefficient, 2.5V–5.5V input range, and active-low shutdown consuming ≤500nA. It operates across –40°C to +125°C and delivers ±5mA load current-ideal for precision battery-powered sensor front-ends in automotive telematics.
For engineers reviewing the MAX6037CAUK30+T datasheet, MAX6037CAUK30+T pinout, MAX6037CAUK30+T application, or MAX6037CAUK30+T equivalent, key selection criteria include its 3.0V fixed output stability under varying load (±0.035%/mA sourcing), 100mV dropout at 1mA, 0.02µF–1µF capacitive-load compatibility, and SOT23-5 automotive-grade packaging.
Technical Context
The MAX6037CAUK30+T is a series-mode bandgap voltage reference with internal trimming for 3.0V nominal output. Its shutdown logic accepts 0.8V max logic-low and 2.0V min logic-high inputs over 3.2V–5.5V supply, enabling direct interface with microcontroller GPIOs without level-shifting.
It maintains output regulation across full automotive temperature range using curvature-compensated bandgap core and proprietary low-noise biasing-achieving 17µVP-P (0.1Hz–10Hz) and 40µVRMS (10Hz–1kHz) noise performance while sourcing/sinking up to 5mA with <410mV dropout at full load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.5% at +25°C - ensures stable ADC reference for 10-bit systems requiring ≤15mV absolute error |
| Tempco | 50ppm/°C max - limits drift to ±600ppm (±1.8mV) over –40°C to +125°C ambient |
| Quiescent Current | 210–275µA - enables >1-year battery life in 10µA sleep-cycle IoT nodes |
| Shutdown Current | ≤500nA - reduces standby power to <1.5µW at 3V supply |
| Dropout Voltage | 100mV max at 1mA - supports operation down to 3.1V input in Li-ion single-cell systems |
| Load Regulation | ±0.035%/mA sourcing - holds output within ±105µV across 0–1mA load variation |
| Capacitive Load Range | 0.02µF to 1µF - compatible with ceramic decoupling caps without oscillation risk |
Pinout & Package
The MAX6037CAUK30+T is housed in a lead-free 5-pin SOT23 package (U5-2 code, top mark AEJG), measuring 2.9mm × 1.6mm × 1.1mm with gull-wing leads. Pin 1 is ADJ (internally connected, no external connection), Pin 2 is GND, Pin 3 is SHDN, Pin 4 is IN, and Pin 5 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ADJ) | Internal connection | No external connection required; reserved for adjustable variants only |
| 2 (GND) | Analog ground reference | Must be tied directly to low-impedance system ground plane to minimize noise coupling |
| 3 (SHDN) | Active-low enable control | Pull ≤0.8V to disable output; ≥2.0V to enable; draws ≤0.05nA leakage in high state |
| 4 (IN) | Unregulated input supply | Accepts 3.2V–5.5V; requires 0.1µF ceramic bypass capacitor to GND within 2mm |
| 5 (OUT) | Precision reference output | Delivers 3.0V ±0.5%; connect 0.02–1µF capacitor to GND for stability and transient response |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 3.0V output | Eliminates external resistor network, reducing BOM count and layout area vs. adjustable references |
| Automotive temperature range | Validated operation from –40°C to +125°C enables use in engine control modules and ADAS sensors |
| Low 100mV dropout | Permits regulation from single Li-ion cell (3.0–4.2V) throughout discharge cycle |
| 500nA shutdown current | Enables multi-year operation in energy-harvesting applications with intermittent wake-up cycles |
| 0.02µF–1µF capacitive stability | Supports miniature 0402 ceramic capacitors, simplifying PCB layout and reducing EMI susceptibility |
Applications
| Medical Glucose Monitors | Automotive Tire Pressure Sensors |
|---|---|
Use Scenario: Portable handheld glucose meters requiring accurate 10-bit ADC reference under varying battery voltage and temperature. IC Role / Device Role / Timing Role: Provides stable 3.0V reference for analog front-end signal conditioning and ADC conversion. Use Value: ±0.5% initial accuracy and 50ppm/°C tempco ensure <±2 LSB error across operating range, meeting ISO 15197 clinical accuracy requirements. | Use Scenario: Wireless TPMS modules mounted inside rotating tires, powered by lithium batteries with wide temperature exposure. IC Role / Device Role / Timing Role: Supplies regulated 3.0V reference for pressure transducer excitation and signal chain biasing. Use Value: 3.2V–5.5V input range and –40°C to +125°C operation allow direct connection to coin-cell or thin-film battery without LDO pre-regulation. |
| Industrial Process Transmitters | Wireless Sensor Network Nodes |
Use Scenario: 4–20mA loop-powered field transmitters measuring temperature or flow in harsh factory environments. IC Role / Device Role / Timing Role: Generates precise 3.0V reference for DAC output scaling and sensor bridge excitation. Use Value: 5mA sink/source capability supports driving 1kΩ bridge sensors and 100nF filter caps without external buffers. | Use Scenario: Battery-operated Zigbee/Thread end nodes performing periodic environmental sensing with ultra-low duty cycles. IC Role / Device Role / Timing Role: Supplies reference voltage to MCU ADC and RF transceiver during brief active periods. Use Value: 500nA shutdown current extends 2000mAh battery life to >10 years when sampling once per hour. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3.0V fixed, ±0.2% initial accuracy, 50ppm/°C, 50µA quiescent current, SOT23-3 package | Lacks shutdown function; lower quiescent current but no enable control | Select when shutdown is unnecessary and lowest possible operating current is critical |
| ADR3430ARJZ-R7 | 3.0V fixed, ±0.1% initial accuracy, 10ppm/°C, 120µA quiescent current, SOT23-5 package | Higher precision and lower tempco, but rated only to +105°C (not automotive) | Select for industrial instrumentation where extended temperature range is not required |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the MAX6037CAUK30+T uniquely combines automotive temperature rating, integrated shutdown, and 3.0V fixed output in SOT23-5-making it optimal for space-constrained, battery-powered automotive and industrial edge sensors requiring guaranteed operation at +125°C.
Availability
MAX6037CAUK30+T is available at Aetrix Electronics and suitable for medical glucose monitors, automotive tire pressure sensors, and industrial process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6037CAUK30+T 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and medical applications.
The MAX6037 family targets battery-powered systems needing micropower, high-accuracy voltage references with shutdown-specifically engineered for automotive-grade reliability and minimal board space in sensor signal chains.
FAQ
What is the maximum input voltage for MAX6037CAUK30+T?
The MAX6037CAUK30+T supports a supply voltage range of 3.2V to 5.5V, as specified in its electrical characteristics table for the 3.0V output variant. Operation below 3.2V may result in loss of regulation or increased dropout voltage. This range ensures compatibility with standard 3.3V and 5V rails while maintaining headroom for the 100mV typical dropout requirement.
Does MAX6037CAUK30+T require an external capacitor on the output pin?
Yes, the MAX6037CAUK30+T requires an output capacitor between OUT and GND in the range of 0.02µF to 1µF for stability and transient response. Ceramic capacitors are recommended. The device remains stable across this full range, eliminating need for tight tolerance or specific ESR values-simplifying design and reducing bill-of-materials cost.
What is the shutdown behavior of MAX6037CAUK30+T?
When SHDN is pulled low (≤0.8V), the MAX6037CAUK30+T disables its output and reduces supply current to ≤500nA. The output enters high-impedance state with >300kΩ output impedance, preventing loading of downstream circuitry. Pulling SHDN high (≥2.0V) restores normal operation with 75µs turn-on settling time to 0.1% of final value.
Can MAX6037CAUK30+T drive a 10kΩ load directly?
Yes, the MAX6037CAUK30+T can drive a 10kΩ load directly. At 3.0V output, this represents 300µA load current-well within its ±5mA sourcing/sinking capability. Load regulation is specified at ±0.035%/mA, meaning output deviation will be ≤10.5µV, preserving accuracy for precision applications like 12-bit ADC references.
Is MAX6037CAUK30+T qualified for automotive applications?
Yes, the MAX6037CAUK30+T is specified over the full automotive temperature range of –40°C to +125°C and packaged in a lead-free SOT23-5 (U5-2) with top mark AEJG. It meets AEC-Q200 stress test requirements for passive components and is widely used in automotive sensor modules, body control units, and infotainment power supplies.
MAX6037CAUK30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 17µVp-p
- Noise - 10Hz to 10kHz:
- 40µVrms
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 275µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6037CAUK30+T FAQ
1.How can I place an order for MAX6037CAUK30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6037CAUK30+T 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 MAX6037CAUK30+T reliable?
The price and inventory of MAX6037CAUK30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6037CAUK30+T is usually 5 days.
3.What payment methods are accepted for MAX6037CAUK30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6037CAUK30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6037CAUK30+T?
MAX6037CAUK30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6037CAUK30+T 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 MAX6037CAUK30+T?
For technical support, including MAX6037CAUK30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6037CAUK30+T requirements.
6.How does Aetrix verify that MAX6037CAUK30+T is sourced from the original manufacturer or authorized distributors?
All MAX6037CAUK30+T 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 MAX6037CAUK30+T meets industry standards.
7.What is the process for return or replacement of MAX6037CAUK30+T?
All MAX6037CAUK30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6037CAUK30+T, 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 MAX6037CAUK30+T part is unused and in its original packaging.
Return procedure for MAX6037CAUK30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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