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Analog Devices Inc./Maxim Integrated MAX6037AAUK30-T
- Part No.:
- MAX6037AAUK30-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6037AAUK30-T.pdf
- Description:
- LOW-POWER, FIXED REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX6037AAUK30-T from Maxim Integrated is a low-dropout, micropower voltage reference IC with fixed 3.0V output, ±0.2% initial accuracy, 25ppm/°C max temperature coefficient, and active-low shutdown (≤500nA). It operates from 3.2V to 5.5V supply, delivers ±5mA load current, and is used in precision analog front-ends of portable medical devices and battery-powered wireless LAN modules.
For engineers reviewing the MAX6037AAUK30-T datasheet, MAX6037AAUK30-T pinout, MAX6037AAUK30-T application, or MAX6037AAUK30-T equivalent, key selection criteria include its automotive-grade (-40°C to +125°C) operation, 100mV max dropout at 1mA, 0.02µF–1µF capacitive-load stability, and SOT23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6037AAUK30-T is a series-mode bandgap voltage reference with internal trimming for high initial accuracy and low thermal drift. Its shutdown circuitry uses an active-low logic input (VENL ≤ 0.8V) to disable output and reduce supply current to ≤500nA while maintaining high output impedance (>300kΩ) in disabled state.
It features built-in capacitive-load stability across 0.02µF–1µF, supports sourcing and sinking up to 5mA with <410mV dropout at full load, and maintains line regulation of ≤0.0133%/V and load regulation of ≤0.2%/mA over its full operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.000V ±0.2% at +25°C - enables direct interface with 3V ADC references and precision regulators without external scaling. |
| Tempco | 25ppm/°C max - ensures ≤±0.015V output drift over -40°C to +125°C, critical for automotive sensor signal chains. |
| Dropout Voltage | 100mV max at 1mA - allows operation from 3.1V supply, supporting single-cell Li-ion or regulated 3.3V rail margin. |
| Quiescent Current | 275µA max - enables multi-year battery life in always-on portable instrumentation with periodic wake-up cycles. |
| Shutdown Current | 500nA max - reduces system standby power by >500× versus active mode, essential for energy-harvesting nodes. |
| Load Drive | ±5mA sourcing/sinking - directly drives ADC reference inputs, op-amp bias networks, or DAC buffers without external gain stages. |
| Capacitive Stability | 0.02µF to 1µF - accommodates ceramic, tantalum, or polymer output caps; eliminates need for external compensation. |
Pinout & Package
MAX6037AAUK30-T is housed in a 5-pin SOT23-5 package (U5-2 code), with 1.6mm × 2.9mm footprint and 1.1mm height, optimized for high-density automotive and portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I.C.) | Internally connected | No external connection required; unused pin for fixed-output variants like MAX6037AAUK30-T. |
| 2 (GND) | Ground reference | Primary return path for reference output and supply current; must be low-impedance to minimize noise coupling. |
| 3 (SHDN) | Active-low enable control | Pull ≤0.8V to disable output; tie to IN for always-on operation; compatible with 1.8V/3.3V logic-level microcontrollers. |
| 4 (IN) | Supply input | Accepts 3.2V–5.5V; requires 0.1µF bypass capacitor to GND near pin for PSRR optimization and transient immunity. |
| 5 (OUT) | Reference voltage output | Delivers stable 3.0V; connects to 0.02µF–1µF output capacitor to GND for stability and noise filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive temperature range | Specified from -40°C to +125°C - qualified for under-hood and infotainment applications without derating. |
| Low dropout at full load | 410mV max at 5mA source - sustains regulation even with aging batteries or undersized LDOs upstream. |
| High PSRR | -60dB typical at 1kHz - rejects ripple from switching regulators, reducing need for additional LC filtering. |
| Thermal hysteresis | 501ppm max - minimizes calibration drift after thermal cycling, improving long-term measurement repeatability. |
| Long-term stability | 133ppm over 1000h - supports 10+ year field reliability in medical and industrial monitoring equipment. |
Applications
| Portable Medical Sensors | Wireless LAN Transceivers |
|---|---|
Use Scenario: Battery-powered ECG front-end acquiring microvolt-level biopotentials with 16-bit ADC. IC Role / Device Role / Timing Role: Precision 3.0V reference for ADC VREF and op-amp biasing, ensuring consistent gain and offset calibration. Use Value: ±0.2% initial accuracy and 25ppm/°C tempco maintain <0.05% total error over temperature, meeting IEC 60601-2-27 clinical accuracy requirements. | Use Scenario: Compact 802.11n Wi-Fi module requiring stable reference for RF synthesizer and baseband ADC/DAC. IC Role / Device Role / Timing Role: Low-noise 3.0V reference for PLL charge pump and analog signal chain, minimizing phase noise and quantization error. Use Value: 40µVRMS noise (10Hz–1kHz) and 100mV dropout enable clean RF performance from single 3.3V LDO, eliminating separate low-noise LDO. |
| Precision Industrial Regulators | Automotive Cabin Controllers |
Use Scenario: Programmable logic controller (PLC) analog input module measuring 4–20mA current loops with 0.1% accuracy. IC Role / Device Role / Timing Role: Stable 3.0V reference for current-sense amplifier gain setting and ADC reference, rejecting supply and thermal variations. Use Value: 0.0133%/V line regulation and 0.2%/mA load regulation ensure <0.02% reading error across full 24V supply range and varying channel loads. | Use Scenario: HVAC control unit in vehicle cabin with ambient temperature sensing and display backlight dimming. IC Role / Device Role / Timing Role: Shutdown-capable 3.0V reference powering thermistor interface and PWM dimming circuitry during sleep mode. Use Value: 500nA shutdown current extends battery backup runtime to >10 years, satisfying ISO 16750-2 cold-cranking requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3430ARJZ-R7 | Fixed 3.0V, ±0.1% initial accuracy, 10ppm/°C tempco, but no shutdown function and higher 4.5µA quiescent current. | Lacks active shutdown - unsuitable for ultra-low-power wake-up architectures requiring sub-µA standby. | Select when highest initial accuracy and lowest tempco are prioritized over power gating capability. |
| REF3330AIDBZR | Fixed 3.0V, ±0.2% initial accuracy, 30ppm/°C tempco, shutdown current 1µA, and 5.5µA quiescent current. | Higher shutdown and operating currents - increases battery drain in multi-year IoT deployments. | Select when cost sensitivity outweighs 5× higher shutdown current and wider tempco tolerance. |
Compared with ADR3430ARJZ-R7 and REF3330AIDBZR, MAX6037AAUK30-T uniquely balances automotive-grade temperature operation, sub-µA shutdown, and 25ppm/°C tempco in a 5-pin SOT23 - making it optimal for battery-backed safety-critical systems where both precision and ultra-low-power state management are mandatory.
Availability
MAX6037AAUK30-T is available at Aetrix Electronics and suitable for portable medical sensors, wireless LAN transceivers, and precision industrial regulators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6037AAUK30-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 shutdown capability, wide temperature operation, and tight initial tolerance are essential design requirements.
FAQ
What is the minimum input voltage required for stable operation of MAX6037AAUK30-T?
The MAX6037AAUK30-T requires a minimum input voltage of 3.2V to maintain regulation at 3.0V output, per its specified 0.2V headroom requirement. Below this, output accuracy degrades and dropout behavior becomes nonlinear. This ensures reliable operation from nominal 3.3V rails with typical 3% tolerance and aging effects.
Does MAX6037AAUK30-T require an external output capacitor, and what value range is supported?
Yes, MAX6037AAUK30-T requires an external output capacitor between OUT and GND, with a supported range of 0.02µF to 1µF. Ceramic capacitors within this range ensure stability across all operating conditions; values outside this window may cause oscillation or degraded transient response.
Can MAX6037AAUK30-T drive a 5mA load while maintaining its specified accuracy?
Yes, MAX6037AAUK30-T is rated to source and sink up to ±5mA while maintaining ≤0.2% output voltage deviation under load regulation testing. At 5mA, its maximum load regulation is 0.2%/mA, resulting in ≤1mV shift from nominal 3.0V - well within its ±6mV initial accuracy band.
How does the shutdown functionality of MAX6037AAUK30-T behave during power-up sequences?
When SHDN is held low during power-up, MAX6037AAUK30-T remains disabled until SHDN rises above 2.0V (VENH). Once enabled, turn-on settling time is 2.4ms to 0.1% of final 3.0V output with 0.02µF capacitor, ensuring predictable timing for microcontroller-controlled reference activation.
Is MAX6037AAUK30-T pin-compatible with other members of the MAX6037 family?
Yes, all MAX6037 variants-including MAX6037AAUK30-T-share identical 5-pin SOT23-5 (U5-2) packaging and pinout. Pin 1 is internally connected (I.C.), pins 2–5 are GND, SHDN, IN, and OUT respectively, enabling drop-in replacement across fixed-output versions without PCB changes.
MAX6037AAUK30-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:
- ±0.2%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 17µVp-p
- Noise - 10Hz to 10kHz:
- 40µVrms
- Voltage - Input:
- 2.5V ~ 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
MAX6037AAUK30-T FAQ
1.How can I place an order for MAX6037AAUK30-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6037AAUK30-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 MAX6037AAUK30-T reliable?
The price and inventory of MAX6037AAUK30-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6037AAUK30-T is usually 5 days.
3.What payment methods are accepted for MAX6037AAUK30-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6037AAUK30-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6037AAUK30-T?
MAX6037AAUK30-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6037AAUK30-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 MAX6037AAUK30-T?
For technical support, including MAX6037AAUK30-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6037AAUK30-T requirements.
6.How does Aetrix verify that MAX6037AAUK30-T is sourced from the original manufacturer or authorized distributors?
All MAX6037AAUK30-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 MAX6037AAUK30-T meets industry standards.
7.What is the process for return or replacement of MAX6037AAUK30-T?
All MAX6037AAUK30-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6037AAUK30-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 MAX6037AAUK30-T part is unused and in its original packaging.
Return procedure for MAX6037AAUK30-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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