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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:
- IC VREF SERIES 0.3% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,565
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Product details
Overview
MAX6037BAUK30+T from Maxim Integrated is a low-dropout, micropower voltage reference with fixed 3.0V output, ±0.3% initial accuracy, 50ppm/°C max temperature coefficient, and active-low shutdown (≤500nA). It operates from 3.2V to 5.5V supply, delivers ±5mA load current, and is designed for precision analog sensing in automotive-grade portable instrumentation.
For engineers reviewing the MAX6037BAUK30+T datasheet, MAX6037BAUK30+T pinout, MAX6037BAUK30+T application, or MAX6037BAUK30+T equivalent, key selection criteria include its 3.0V fixed output stability over -40°C to +125°C, 100mV max dropout at 1mA, 0.02µF–1µF capacitive-load compatibility, and SOT23-5 package footprint for space-constrained PCBs.
Technical Context
The MAX6037BAUK30+T uses a series-mode bandgap reference architecture with internal trimming for 3.0V output. Its shutdown control logic responds to SHDN pin voltage ≤0.8V (logic-low) to disable output and reduce supply current to ≤500nA, while requiring ≥2.0V (logic-high) for normal operation.
It maintains output regulation across input voltages from 3.2V to 5.5V and load currents from -5mA to +5mA, with line regulation of ≤0.0133%/V and load regulation of ≤0.2%/mA - enabling stable reference performance in battery-powered systems with varying supply and dynamic load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.000V (±0.3% at +25°C; min/max 2.9910V/3.0090V) |
| Initial Accuracy | ±0.3% (max) - ensures system-level ADC/DAC reference error budget stays within 12-bit resolution limits |
| Tempco | 50ppm/°C (max) - supports <±0.015% output drift over full -40°C to +125°C automotive range |
| Dropout Voltage | 100mV (max at 1mA) - enables operation with only 3.1V input when VOUT = 3.0V |
| Quiescent Current | 275µA (max) - allows >1-year battery life in 10µA-average-power portable devices |
| Shutdown Current | 500nA (max) - reduces standby power by >500× vs active mode |
| Load Drive | ±5mA sourcing/sinking - directly drives ADC reference inputs, op-amp bias networks, or small DACs without buffering |
Pinout & Package
MAX6037BAUK30+T is housed in a 5-pin SOT23-5 package (U5-2 code), with 1.6mm × 2.9mm footprint, 1.1mm height, and gull-wing leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - I.C. | Internally connected (no external connection) | Unused pin; must be left floating or grounded per layout best practice - no routing required |
| 2 - GND | Reference ground return | Low-impedance return path for reference output and internal circuitry; requires dedicated ground plane tie |
| 3 - SHDN | Active-low shutdown control input | Pull ≤0.8V to disable output and reduce current to ≤500nA; tie to IN for always-on operation |
| 4 - IN | Positive supply input (3.2V–5.5V) | Requires 0.1µF ceramic bypass capacitor to GND close to pin to suppress supply noise and ensure stability |
| 5 - OUT | 3.0V precision reference output | Stable output driving 0.02µF–1µF capacitive loads; connects directly to ADC REF+, sensor excitation, or feedback nodes |
Key Features
| Feature | Design Value |
|---|---|
| Automotive temperature range | Specified from -40°C to +125°C - qualified for under-hood and ADAS sensor modules |
| Capacitive-load stability | Stable with 0.02µF to 1µF output capacitance - eliminates need for external compensation networks |
| Low dropout voltage | 100mV max at 1mA - enables use with single-cell Li-ion (3.0–3.6V) or regulated 3.3V rails |
| Shutdown leakage control | ≤500nA shutdown current - preserves battery charge during extended sleep cycles in IoT edge nodes |
| High PSRR | ≥60dB rejection up to 1kHz - rejects switching regulator ripple and digital noise coupling into analog signal chains |
Applications
| Medical Instrumentation | Portable Test Equipment |
|---|---|
Use Scenario: Portable blood glucose meter requiring stable 3.0V reference for 12-bit ADC conversion of electrochemical sensor output. IC Role / Device Role / Timing Role: Precision voltage reference providing excitation and ADC reference for analog front-end. Use Value: ±0.3% initial accuracy and 50ppm/°C tempco ensure measurement repeatability across clinic-to-field environmental shifts. | Use Scenario: Handheld multimeter with dual-slope ADC needing low-drift, low-noise 3.0V reference for DC voltage measurement. IC Role / Device Role / Timing Role: Primary reference source for ADC reference input and internal calibration circuitry. Use Value: 100mV dropout allows operation from 3.3V LDO rail with margin; 0.02µF–1µF load compatibility simplifies output filtering design. |
| Wireless Sensor Nodes | Automotive Cabin Sensors |
Use Scenario: Battery-powered CO₂ sensor node using 3.0V reference for NDIR detector signal conditioning and microcontroller ADC. IC Role / Device Role / Timing Role: Low-power reference enabling periodic wake-up, measurement, and BLE transmission cycles. Use Value: 500nA shutdown current extends 2xAA battery life beyond 5 years in 1-minute sampling interval deployments. | Use Scenario: Occupant detection system with capacitive touch sensors requiring stable 3.0V bias in vehicle cabin (-40°C to +85°C). IC Role / Device Role / Timing Role: Temperature-stable reference for sensor bridge excitation and signal chain gain-setting resistors. Use Value: -40°C to +125°C qualification and 50ppm/°C tempco guarantee consistent sensitivity across seasonal thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6035BAUT30+T | Same 3.0V output, but lower quiescent current (150µA max) and higher tempco (100ppm/°C); SOT23-3 package (no shutdown) | Lacks shutdown function and automotive temp range; suited for cost-sensitive, non-automotive consumer designs | Select when shutdown and extended temperature are not required, and board space permits SOT23-3 footprint |
| ADR3430ARJZ-R7 | 3.0V output, ±0.1% initial accuracy, 30ppm/°C tempco, 4.5µA quiescent current, no shutdown, SOT23-5 | Higher accuracy and lower tempco, but no shutdown and significantly higher supply current - unsuitable for ultra-low-power sleep modes | Choose when highest DC precision is critical and system power budget allows continuous 4.5µA draw |
Compared with MAX6035BAUT30+T and ADR3430ARJZ-R7, the MAX6037BAUK30+T uniquely balances automotive qualification, integrated shutdown, and micropower operation - making it optimal for battery-backed or energy-harvested sensor systems requiring guaranteed performance across extreme temperatures.
Availability
MAX6037BAUK30+T is available at Aetrix Electronics and suitable for medical instrumentation, portable test equipment, and wireless sensor nodes requiring stable component supply with long-term automotive-grade reliability.
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, mixed-signal, and power management ICs for demanding industrial, automotive, and medical applications.
The MAX6037 family targets ultra-low-power, high-accuracy voltage references for battery-operated and automotive systems where stability, small size, and shutdown capability are essential.
FAQ
What is the maximum input voltage for MAX6037BAUK30+T?
The MAX6037BAUK30+T supports a supply voltage range of 3.2V to 5.5V. Exceeding 5.5V may cause permanent damage, as specified in the Absolute Maximum Ratings. Operation above 5.5V is not functional or reliable, and the device is not rated for transient overvoltage events beyond this limit.
Does MAX6037BAUK30+T require an external output capacitor?
Yes, MAX6037BAUK30+T requires an output capacitor between OUT and GND, sized from 0.02µF to 1µF, to ensure stability across all operating conditions. Ceramic X7R or C0G types are recommended. Omitting this capacitor risks oscillation and degraded noise performance.
Can MAX6037BAUK30+T drive a 10kΩ load directly?
Yes, MAX6037BAUK30+T can drive a 10kΩ load directly: at 3.0V output, this draws only 300µA - well within its ±5mA sourcing/sinking capability. Load regulation remains ≤0.2%/mA, so output deviation is <0.6mV, preserving accuracy for most 12-bit applications.
What is the typical turn-on settling time for MAX6037BAUK30+T?
The typical turn-on settling time for MAX6037BAUK30+T is 2.4ms (to 0.1% of final value) with COUT = 0.02µF and VIN = 5V, as measured when SHDN transitions from low to high. This value increases slightly with larger output capacitance or lower input voltage.
Is MAX6037BAUK30+T pin-compatible with other MAX6037 variants?
Yes, all MAX6037 variants - including MAX6037BAUK30+T - share identical 5-pin SOT23-5 (U5-2) packaging and pinout. The only differences are output voltage, initial accuracy, and temperature coefficient; no PCB redesign is needed when substituting within the same grade (e.g., B-grade 3.0V to B-grade 3.3V).
MAX6037BAUK30+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:
- ±0.3%
- 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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