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Analog Devices Inc./Maxim Integrated MAX6037BAUK30-T
- Part No.:
- MAX6037BAUK30-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6037BAUK30-T.pdf
- Description:
- LOW-POWER, FIXED REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6037BAUK30-T from Maxim Integrated is a low-dropout, micropower series voltage reference with fixed 3.0V output, ±0.3% initial accuracy (A-grade), 50ppm/°C max temperature coefficient, and active-low shutdown enabling <500nA quiescent current. It operates from 3.2V to 5.5V supply, delivers ±5mA load current, and targets precision analog front-ends in battery-powered wireless LAN modules.
For engineers reviewing the MAX6037BAUK30-T datasheet, MAX6037BAUK30-T pinout, MAX6037BAUK30-T application, or MAX6037BAUK30-T equivalent, key selection criteria include its automotive-grade -40°C to +125°C operation, 100mV dropout at 1mA, 0.02µF–1µF capacitive-load stability, and SOT23-5 package compatibility with space-constrained portable medical sensors and industrial data loggers.
Technical Context
The MAX6037BAUK30-T uses a bandgap-based series-mode architecture with internal trimming for fixed 3.0V output. Its shutdown logic accepts TTL-compatible inputs (VENL ≤ 0.8V, VENH ≥ 2.0V) and disables output while maintaining high-impedance state (ZOUT = 300kΩ when disabled).
It features built-in thermal hysteresis compensation (501ppm typical) and long-term stability of 133ppm over 1000 hours. Load regulation is specified at ±0.03%/mA sourcing and ±0.2%/mA sinking, supporting stable biasing for 12-bit ADCs and precision DACs without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.3% at +25°C - ensures accurate 3V rail for SAR ADC reference inputs |
| Tempco | 50ppm/°C max - limits drift to ±600µV over full -40°C to +125°C range |
| Dropout Voltage | 100mV max at 1mA - enables operation from 3.1V supply in Li-ion single-cell systems |
| Quiescent Current | 275µA max - supports >1-year battery life in always-on sensor nodes |
| Shutdown Current | 500nA max - reduces standby power to sub-µW level in sleep-mode IoT endpoints |
| Load Drive | ±5mA sourcing/sinking - directly drives 10kΩ ADC input impedance or op-amp bias networks |
| Capacitive Stability | 0.02µF to 1µF - compatible with standard ceramic decoupling caps, no ESR requirements |
Pinout & Package
MAX6037BAUK30-T is housed in a 5-pin SOT23-5 package (U5-2 code, top mark AEJG), with exposed pad not connected internally. The package measures 2.9mm × 1.6mm × 1.1mm and is rated for reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - ADJ | Internal connection (no external connection) | Internally tied; unused on fixed-output variants like MAX6037BAUK30-T |
| 2 - GND | Analog ground reference | Must be low-impedance path to system ground plane to minimize noise coupling into reference output |
| 3 - SHDN | Active-low enable control | Pull ≤0.8V to disable output; tie to IN for continuous operation; 0.05–1000nA leakage supports clean digital interfacing |
| 4 - IN | Supply input (3.2V–5.5V) | Requires 0.1µF ceramic bypass capacitor to GND; line regulation ≤0.0133%/V minimizes supply ripple impact |
| 5 - OUT | Precision 3.0V reference output | Drives 0.02–1µF output cap; 40–100mV dropout at 1–5mA enables direct use with low-voltage LDOs or ADCs |
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 | -40°C to +125°C operation qualified per AEC-Q100 - suitable for under-hood sensor modules |
| Low dropout voltage | 100mV max at 1mA allows use with 3.1V supplies, extending battery runtime in portable equipment |
| Shutdown mode | <500nA supply current enables micro-power sleep states in energy-harvesting systems |
| Capacitive-load stability | Stable with 0.02µF–1µF ceramic output caps - avoids costly tantalum or special low-ESR types |
Applications
| Medical Equipment | Portable Equipment |
|---|---|
|
Use Scenario: Portable blood glucose meter requiring stable 3.0V reference for 12-bit ADC conversion of electrochemical sensor signals. IC Role / Device Role / Timing Role: Precision voltage reference providing excitation and measurement reference for analog front-end. Use Value: ±0.3% initial accuracy and 50ppm/°C tempco ensure <±1 LSB error across operating temperature, meeting ISO 15197 clinical accuracy requirements. |
Use Scenario: Handheld barcode scanner using 3.3V logic but needing 3.0V reference for analog photodiode signal conditioning. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current reference supplying bias to transimpedance amplifier. Use Value: 275µA max supply current and 0.02µF–1µF stability allow compact design with single 0402 ceramic cap, reducing PCB area by 30% vs. legacy references. |
| Wireless LAN | Precision Regulators |
|
Use Scenario: 2.4GHz Wi-Fi module in battery-powered IoT gateway requiring stable 3.0V reference for RF power detector calibration. IC Role / Device Role / Timing Role: Shutdown-capable reference enabling periodic calibration during RF sleep cycles. Use Value: <500nA shutdown current extends battery life to >2 years in duty-cycled operation, while 100mV dropout permits use with buck converter output at 3.1V. |
Use Scenario: Industrial programmable logic controller (PLC) analog input module needing 3.0V reference for 16-bit sigma-delta ADC. IC Role / Device Role / Timing Role: High-stability reference with thermal hysteresis <501ppm for repeatable measurements after ambient cycling. Use Value: 133ppm long-term stability over 1000h ensures calibration validity for 6-month maintenance intervals without field recalibration. |
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, ±0.2% initial accuracy, 50ppm/°C, 50µA quiescent current, no shutdown | Lacks shutdown; lower IQ but no power-gating capability | Select when ultra-low IQ is critical and system-level power sequencing handles enable/disable |
| ADR3430ARJZ-R7 | 3.0V, ±0.1% initial accuracy, 25ppm/°C, 120µA IQ, no shutdown, 5-pin SOT23 | Higher accuracy/tempco, no shutdown, higher cost | Select when tighter initial tolerance and lower tempco justify premium for metrology-grade designs |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, MAX6037BAUK30-T uniquely balances automotive temperature rating, integrated shutdown, and cost-effective ±0.3% accuracy-making it optimal for battery-operated industrial sensors where power gating and extended temperature operation are mandatory.
Availability
MAX6037BAUK30-T is available at Aetrix Electronics and suitable for medical equipment, portable instrumentation, and wireless LAN modules requiring stable component supply with guaranteed automotive-grade performance and lead-free compliance.
Supply support for MAX6037BAUK30-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 and mixed-signal ICs for demanding industrial, automotive, and medical applications, emphasizing low-power, high-accuracy, and robust reliability.
The MAX6037 family was engineered specifically for micropower, low-dropout voltage reference needs in space- and energy-constrained systems-delivering fixed and adjustable outputs with shutdown in miniature SOT23 packages.
FAQ
What is the maximum input voltage for MAX6037BAUK30-T?
The MAX6037BAUK30-T supports a supply voltage range of 3.2V to 5.5V, as specified in its electrical characteristics table. Operation above 5.5V risks permanent damage per absolute maximum ratings, and minimum input is defined by dropout margin: VIN must exceed VOUT + 0.2V (i.e., ≥3.2V) to maintain regulation. This range enables compatibility with common 3.3V and 5V rails.
Does MAX6037BAUK30-T require an external capacitor on the output?
Yes, MAX6037BAUK30-T requires an output capacitor between OUT and GND, with a recommended range of 0.02µF to 1µF. Ceramic capacitors are fully supported; no ESR constraints apply. Omitting this capacitor may cause instability or excessive noise, especially under dynamic load conditions. The device remains stable across this full range without tuning.
Can MAX6037BAUK30-T be used in automotive applications?
Yes, MAX6037BAUK30-T is fully specified for the automotive temperature range of -40°C to +125°C and is manufactured in a flow qualified for automotive use. Its 50ppm/°C tempco, 133ppm long-term stability, and thermal hysteresis of 501ppm meet stringent requirements for engine control units, battery management sensors, and ADAS subsystems.
What is the shutdown behavior of MAX6037BAUK30-T?
When SHDN is pulled low (≤0.8V), MAX6037BAUK30-T disables its output and reduces supply current to ≤500nA. The output enters high-impedance state (ZOUT = 300kΩ), preventing loading of downstream circuits. Pulling SHDN high (≥2.0V) restores normal operation with 75µs turn-on settling time to 0.1% of final value when COUT = 0.02µF.
How does the accuracy of MAX6037BAUK30-T compare to other grades in the MAX6037 family?
MAX6037BAUK30-T belongs to the 'B' grade, offering ±0.3% initial accuracy at +25°C - tighter than 'C' grade (±0.5%) but less precise than 'A' grade (±0.2%). All grades share identical 50ppm/°C max tempco and 500nA max shutdown current. Select 'B' grade when cost-sensitive designs require better-than-C accuracy without paying A-grade premiums.
MAX6037BAUK30-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.3%
- 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
MAX6037BAUK30-T FAQ
1.How can I place an order for MAX6037BAUK30-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6037BAUK30-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 MAX6037BAUK30-T reliable?
The price and inventory of MAX6037BAUK30-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6037BAUK30-T is usually 5 days.
3.What payment methods are accepted for MAX6037BAUK30-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6037BAUK30-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6037BAUK30-T?
MAX6037BAUK30-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6037BAUK30-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 MAX6037BAUK30-T?
For technical support, including MAX6037BAUK30-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6037BAUK30-T requirements.
6.How does Aetrix verify that MAX6037BAUK30-T is sourced from the original manufacturer or authorized distributors?
All MAX6037BAUK30-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 MAX6037BAUK30-T meets industry standards.
7.What is the process for return or replacement of MAX6037BAUK30-T?
All MAX6037BAUK30-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6037BAUK30-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 MAX6037BAUK30-T part is unused and in its original packaging.
Return procedure for MAX6037BAUK30-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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