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Analog Devices Inc./Maxim Integrated MAX38902DANT27+T
- Part No.:
- MAX38902DANT27+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-XFBGA, WLBGA
- Datasheet:
-
MAX38902DANT27+T.pdf
- Description:
- IC REG LINEAR 2.7V 500MA 6WLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,934
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Product details
Overview
MAX38902DANT27+T from Analog Devices is a factory-programmed, low-noise 500mA LDO linear regulator delivering a fixed 2.7V output with ±1% DC accuracy over load, line, and temperature; 10.5µVRMS output noise (10Hz–100kHz); 100mV max dropout at 500mA (3.6VIN); and 365µA no-load supply current. It operates from 1.7V to 5.5V input and is used in high-resolution data acquisition systems requiring ultra-low-noise power for ADCs and precision analog front-ends.
For engineers reviewing the MAX38902DANT27+T datasheet, MAX38902DANT27+T pinout, MAX38902DANT27+T application, or MAX38902DANT27+T equivalent, key selection criteria include its WLP package footprint, factory-trimmed 2.7V output, active discharge (800Ω), programmable soft-start via BYP capacitor, and thermal/overcurrent protection - all critical for space-constrained, noise-sensitive embedded systems.
Technical Context
The MAX38902DANT27+T implements a pMOS-based LDO architecture with internal 0.6V reference and feedback loop optimized for stability with ≥2µF ceramic output capacitance. Its 10.5µVRMS noise performance stems from dedicated low-noise bandgap and BYP-filtered reference path, while the 800Ω active discharge circuit enables controlled power-down sequencing.
Unlike the pin-selectable MAX38902A or resistor-adjustable MAX38902B/C variants, the MAX38902DANT27+T has no SELA/SELB or FB pins - its 2.7V output is permanently trimmed at wafer level. It shares the same 6-bump, 2×3 WLP package (N60G1+1) and thermal resistance (θJA = 95.1°C/W on 4-layer board) as MAX38902C, but omits POK and ground-sense functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.7V, factory-trimmed to ±1% accuracy across -40°C to +125°C, eliminating external resistors and layout sensitivity. |
| Max Output Current | 500mA continuous, supporting high-current analog circuits like SAR ADC drivers or RF bias rails without thermal derating under typical PCB conditions. |
| Output Noise | 10.5µVRMS (10Hz–100kHz), enabling direct powering of 16-bit+ data converters without additional post-regulation filtering. |
| Dropout Voltage | ≤100mV at 500mA (VIN = 3.6V), allowing operation from single-cell Li-ion or 3.3V rails with minimal headroom loss. |
| Supply Current | 365µA no-load, independent of dropout voltage - critical for battery-powered systems where quiescent current directly impacts runtime. |
| Active Discharge | 800Ω pull-down from OUT to GND when EN = low, discharging 4.7µF output caps in <15ms for safe multi-rail sequencing. |
| Soft-Start Control | Programmable via 0.001–0.1µF BYP-to-OUT capacitor; 0.01µF yields 5V/ms slew rate, limiting inrush current during startup. |
Pinout & Package
MAX38902DANT27+T uses a 2×3 wafer-level package (WLP), 0.4mm pitch, 1.22mm × 0.82mm footprint (package code N60G1+1), with solder bumps on the top side (bump-side down mounting). The exposed die attach area is not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | IN | Input supply (1.7V–5.5V); requires 4.7µF ceramic bypass to GND for stability and PSRR optimization. |
| 2 (A2) | GND | Regulator ground reference; must be tied directly to system ground plane with low-inductance connection. |
| 3 (A3) | EN | Active-high enable; drives output ON when >1.2V, OFF when <0.7V; pulls OUT to GND via 800Ω when disabled. |
| 4 (B1) | BYP | Bypass node for noise filtering and soft-start timing; connect 0.01µF capacitor to OUT to set 5V/ms slew rate. |
| 5 (B2) | OUTS | Output sense terminal; connects directly to load point for remote sensing, compensating for PCB trace IR drop. |
| 6 (B3) | OUT | Regulated 2.7V output; sources up to 500mA; requires ≥2µF low-ESR ceramic capacitor to GND for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Output Noise | 10.5µVRMS (10Hz–100kHz) enables direct powering of high-resolution ADCs, DACs, and RF synthesizers without added filtering. |
| Factory-Trimmed Output | 2.7V preset at wafer level with ±1% tolerance over full temperature and load range - eliminates resistor matching errors and layout parasitics. |
| Active Output Discharge | 800Ω internal switch discharges output capacitors rapidly upon shutdown, preventing hold-up voltage conflicts in multi-supply systems. |
| Programmable Soft-Start | Startup slew rate adjusted via BYP capacitor (0.001–0.1µF); avoids input rail sag and inrush-induced reset glitches in sensitive systems. |
| Robust Protection | Thermal shutdown (165°C trip), overcurrent limiting (~700mA), and reverse-current blocking prevent damage during fault conditions. |
Applications
| High-Resolution Data Acquisition | Portable Audio Signal Chain |
|---|---|
|
Use Scenario: Powering 24-bit delta-sigma ADCs (e.g., ADS127L01) in portable instrumentation where supply noise directly limits effective resolution. IC Role / Device Role / Timing Role: Primary analog supply rail for ADC reference and core logic, delivering ultra-low-noise 2.7V with tight regulation. Use Value: 10.5µVRMS noise contributes <0.5 LSB error in 24-bit conversion at 2.7V full-scale, preserving dynamic range without external LDO cascading. |
Use Scenario: Biasing MEMS microphones and low-noise op-amps in Bluetooth earbuds where EMI and battery life are critical. IC Role / Device Role / Timing Role: Clean 2.7V supply for microphone preamp and codec analog section, replacing switching converter + LC filter. Use Value: 365µA quiescent current extends battery runtime by >12 hours vs. competing LDOs; 100mV dropout enables use with aging Li-ion cells. |
| Industrial Sensor Transmitters | Medical Wearable Front-Ends |
|
Use Scenario: Powering 4–20mA loop-powered sensors with integrated signal conditioning ICs in hazardous environments. IC Role / Device Role / Timing Role: Local 2.7V rail for precision op-amps and voltage references within isolated sensor modules. Use Value: ±1% DC accuracy ensures <±0.2% full-scale error in 4–20mA output calibration; thermal protection prevents field failures during ambient temperature excursions. |
Use Scenario: Supplying photodiode transimpedance amplifiers and analog front-ends in pulse oximeters with strict EMI requirements. IC Role / Device Role / Timing Role: Low-noise analog supply for current-to-voltage conversion stage, decoupled from digital MCU rail. Use Value: Active discharge (800Ω) clears residual charge before optical LED pulsing, eliminating baseline drift between measurement cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX38902DANT33+T | Factory-programmed 3.3V output; identical WLP package, noise, and protection features. | Used where system logic or interface I/O requires 3.3V instead of 2.7V - no change to PCB layout or BOM except part number. | Select when target application voltage matches 3.3V; shares same thermal and noise specs but not interchangeable without design review. |
| TPL7407LPGEDR | 7-channel 500mA LDO array in 20-pin WQFN; 15µVRMS noise; no active discharge or OUTS pin. | Suitable for multi-rail systems needing coordinated enable/shutdown, but lacks remote sensing and ultra-low noise of MAX38902DANT27+T. | Choose for cost-sensitive multi-output designs where 2.7V is one of several required rails and 15µVRMS noise is acceptable. |
Compared with MAX38902DANT33+T, the MAX38902DANT27+T provides identical performance at 2.7V - ideal for analog signal chains requiring lower headroom than 3.3V. Versus TPL7407LPGEDR, it delivers superior noise and sensing capability but serves single-rail applications only, making it optimal for precision analog subsystems where noise and accuracy dominate.
Availability
MAX38902DANT27+T is available at Aetrix Electronics and suitable for high-resolution data acquisition systems, portable audio signal chains, industrial sensor transmitters, and medical wearable front-ends requiring stable component supply with guaranteed long-term availability.
Supply support for MAX38902DANT27+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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX38902 family was designed specifically for ultra-low-noise, high-accuracy power delivery in precision analog systems - targeting applications where switching regulator noise or standard LDO inaccuracies compromise measurement integrity.
FAQ
What is the output voltage tolerance of the MAX38902DANT27+T over temperature and load?
The MAX38902DANT27+T maintains ±1% DC output accuracy across -40°C to +125°C junction temperature, full 0.1mA–500mA load range, and input voltages from 2.7V+0.3V to 5.5V. This specification is guaranteed by design and characterization, with production testing performed at +25°C per the datasheet.
Does the MAX38902DANT27+T support remote voltage sensing?
Yes, the MAX38902DANT27+T includes an OUTS (output sense) pin (Pin 5/B2) that connects directly to the load point to compensate for PCB trace resistance. When used, the internal feedback loop regulates voltage at the OUTS node rather than at the OUT pin, ensuring precise 2.7V delivery at the load under varying current conditions.
What is the minimum output capacitance required for stability with the MAX38902DANT27+T?
The MAX38902DANT27+T requires a minimum 2µF ceramic output capacitor (X5R/X7R dielectric) at the OUT pin for guaranteed stability. This value accounts for voltage derating; for example, a 4.7µF/6.3V X5R capacitor typically retains ~2.9µF at 2.7V DC bias, satisfying the requirement.
Can the MAX38902DANT27+T be used with input voltages below 2.7V?
Yes - the MAX38902DANT27+T operates from 1.7V to 5.5V input. At VIN = 2.0V, it sustains 2.7V output only if load current is reduced to maintain ≥100mV headroom; full 500mA is supported only when VIN ≥ 2.8V. Dropout voltage increases as VIN decreases, per the datasheet's dropout table.
Is the MAX38902DANT27+T pin-compatible with other MAX38902 variants?
No - the MAX38902DANT27+T uses a 6-bump WLP package (N60G1+1), while MAX38902A/B use 8-pin TDFN. Even among WLP variants, MAX38902DANT27+T lacks FB and POK pins present on MAX38902B/C, making it functionally and physically incompatible with those versions despite shared package outline.
MAX38902DANT27+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 600 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 40dB (1kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLP (1.22x0.82)
MAX38902DANT27+T FAQ
1.How can I place an order for MAX38902DANT27+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX38902DANT27+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 MAX38902DANT27+T reliable?
The price and inventory of MAX38902DANT27+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX38902DANT27+T is usually 5 days.
3.What payment methods are accepted for MAX38902DANT27+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX38902DANT27+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX38902DANT27+T?
MAX38902DANT27+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX38902DANT27+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 MAX38902DANT27+T?
For technical support, including MAX38902DANT27+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX38902DANT27+T requirements.
6.How does Aetrix verify that MAX38902DANT27+T is sourced from the original manufacturer or authorized distributors?
All MAX38902DANT27+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 MAX38902DANT27+T meets industry standards.
7.What is the process for return or replacement of MAX38902DANT27+T?
All MAX38902DANT27+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX38902DANT27+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 MAX38902DANT27+T part is unused and in its original packaging.
Return procedure for MAX38902DANT27+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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