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Analog Devices Inc./Maxim Integrated MAX8840EYT27+TG65
- Part No.:
- MAX8840EYT27+TG65
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-UFLGA
- Datasheet:
-
MAX8840EYT27+TG65.pdf
- Description:
- IC REG LINEAR 2.7V 150MA 6UTLGA
- Quantity:
- Payment:
- Shipping:
Inventory:40,000
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Product details
Overview
MAX8840EYT27+TG65 from Maxim Integrated is a 2.7V preset, ultra-low-noise, high-PSRR, low-dropout linear regulator delivering up to 150mA output current with 120mV dropout at 120mA load, 11µVRMS output noise (100Hz–100kHz), and 40µA ground current - designed for powering noise-sensitive RF and analog circuitry in portable battery-powered systems.
For engineers reviewing the MAX8840EYT27+TG65 datasheet, MAX8840EYT27+TG65 pinout, MAX8840EYT27+TG65 application, or MAX8840EYT27+TG65 equivalent, key selection criteria include its µDFN-6 (1.5mm × 1.0mm) package, BP pin-enabled noise suppression, guaranteed ±3% output voltage accuracy over load/temperature, and compatibility with 1µF ceramic output capacitance for stability across all operating conditions.
Technical Context
The MAX8840EYT27+TG65 employs a p-channel MOSFET series pass transistor (typ. RDS(ON) = 1Ω) enabling low quiescent current and minimal dropout voltage dependence on load. Its bandgap reference (1.225V) feeds an error amplifier that controls the pass gate via internal feedback, eliminating need for external resistors.
It integrates a dedicated BP (bypass) pin connected to an internal noise-reduction circuit; a 10nF capacitor between BP and OUT reduces RMS output noise to 11µV while maintaining fast startup via precharge logic. Shutdown mode draws <1µA, and thermal protection activates at +160°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.7V fixed (factory-preset); ±3% accuracy over 100µA–80mA load and –40°C to +85°C ensures stable biasing of ADCs, VCOs, and RF front-ends. |
| Dropout Voltage | 120mV at 120mA load; enables operation down to VIN = 2.82V, extending usable battery life in single-cell Li-ion or dual-cell alkaline systems. |
| Output Noise | 11µVRMS (100Hz–100kHz); critical for powering PLLs, RF synthesizers, and precision analog sensors without introducing phase jitter or signal distortion. |
| PSRR | 78dB at 1kHz, 54dB at 100kHz; suppresses switching noise from DC-DC converters feeding the LDO input, reducing need for additional filtering stages. |
| Ground Current | 40µA typical at light load; minimizes standby power loss in always-on subsystems such as Bluetooth radios or real-time clock circuits. |
| Stability | Guaranteed stable with ≥1µF ceramic output capacitor (X5R/X7R); eliminates requirement for tantalum or large electrolytic caps, saving board space and cost. |
| Shutdown Current | <1µA; supports deep-sleep modes in portable devices without compromising system-level energy budget. |
Pinout & Package
MAX8840EYT27+TG65 is housed in a lead-free, RoHS-compliant 6-pin µDFN package measuring 1.5mm × 1.0mm × 0.8mm with wettable flanks, optimized for automated optical inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Unregulated input supply | Accepts 2V–6V input; requires 1µF ceramic bypass capacitor close to pin to suppress high-frequency noise and support transient response. |
| 2 GND | Power and thermal ground | Serves dual role: electrical return path and primary heat dissipation channel; must connect to large copper pour or internal ground plane. |
| 3 SHDN | Active-low shutdown control | Pull ≤0.4V to disable regulator (output goes high-Z); logic-high ≥1.5V enables operation; input bias current <0.1µA minimizes leakage impact. |
| 4 BP | Noise bypass terminal | Connects internally to noise-reduction circuit; 10nF capacitor to OUT reduces output RMS noise to 11µV; shorted to OUT during shutdown. |
| 5 N.C. | No connection | Not internally bonded; must remain unconnected and unstubbed to avoid parasitic coupling or EMI susceptibility. |
| 6 OUT | Regulated output | Delivers 2.7V ±3%; requires 1µF ceramic output capacitor (X5R/X7R) directly at pin for stability; supports 150mA max continuous load. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11µVRMS (100Hz–100kHz) achieved via BP pin and internal noise-bypass architecture - enables clean power for RF transceivers and high-resolution ADCs. |
| High PSRR at RF frequencies | 54dB at 100kHz ensures effective rejection of switching regulator ripple and digital noise coupling into sensitive analog rails. |
| Low dropout with p-MOSFET | 120mV at 120mA eliminates base-drive losses inherent in PNP-based LDOs, improving efficiency and thermal performance in compact designs. |
| Minimal external components | Only requires IN and OUT 1µF ceramic capacitors plus optional 10nF BP capacitor - reduces BOM count, footprint, and assembly cost. |
| Robust protection suite | Integrated current limiting (150–300mA), thermal shutdown (+160°C), and hysteresis (+10°C) prevent damage during fault conditions without external circuitry. |
Applications
| Bluetooth Audio Transmitter | RF Front-End Power |
|---|---|
|
Use Scenario: Powers the RF power amplifier and VCO in a Class 2 Bluetooth headset with single-cell Li-ion supply. IC Role / Device Role / Timing Role: Provides ultra-low-noise 2.7V bias to minimize phase noise and adjacent-channel interference in 2.4GHz ISM band transmission. Use Value: 11µVRMS noise and 54dB PSRR at 100kHz prevent spectral regrowth and ensure FCC/ETSI compliance without added LC filtering. |
Use Scenario: Supplies local oscillator and mixer stages in a portable GPS receiver operating from a shared 3.3V system rail. IC Role / Device Role / Timing Role: Isolates noise-sensitive RF circuitry from noisy digital supply domains using high PSRR and low ground current. Use Value: 78dB PSRR at 1kHz rejects switching artifacts from buck converters, preserving carrier-to-noise ratio and time-to-first-fix performance. |
| Digital Camera Image Sensor Bias | Portable Medical Pulse Oximeter |
|
Use Scenario: Delivers clean 2.7V to CMOS image sensor analog core and column ADC in a compact action camera. IC Role / Device Role / Timing Role: Regulates power for pixel readout and analog signal chain where supply-induced noise manifests as fixed-pattern or temporal noise. Use Value: 120mV dropout extends operational window near battery end-of-life, while 11µVRMS noise prevents visible banding in low-light video capture. |
Use Scenario: Powers photodiode transimpedance amplifier and analog front-end in a battery-operated wearable pulse oximeter. IC Role / Device Role / Timing Role: Supplies ultra-stable, low-noise bias to high-gain analog stages where supply ripple couples directly into SpO₂ measurement accuracy. Use Value: ±3% output accuracy and 40µA ground current enable >100-hour battery life while maintaining sub-1% saturation error in clinical-grade readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2027PDQNR | 2.7V fixed, 250mA output, 19µVRMS noise, no BP pin; uses NMOS pass device requiring higher dropout (~175mV @ 120mA). | Better current capability but higher noise and lower PSRR (42dB @ 100kHz); suited for digital I/O rails, not RF/analog. | Select when higher output current is required and noise sensitivity is moderate; verify dropout margin with battery voltage profile. |
| MCP1700T-2702E/MB | 2.7V fixed, 250mA, 30µVRMS noise, no BP pin; 6µA quiescent current but only 40dB PSRR @ 100kHz. | Optimized for ultra-low IQ in always-on monitoring, not low-noise analog; lacks BP-driven noise suppression architecture. | Prefer for long-life battery applications where noise is secondary to standby current; avoid in RF or precision analog signal chains. |
Compared with TPS7A2027PDQNR and MCP1700T-2702E/MB, the MAX8840EYT27+TG65 uniquely delivers 11µVRMS noise and 54dB PSRR at 100kHz in a 1.5mm × 1.0mm package - making it the only option among the three qualified for powering VCOs, RF synthesizers, and high-speed ADCs without external filtering.
Availability
MAX8840EYT27+TG65 is available at Aetrix Electronics and suitable for Bluetooth accessories, portable medical devices, digital cameras, and RF front-end modules requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX8840EYT27+TG65 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX8840 series belongs to Maxim's ultra-low-noise LDO portfolio, engineered specifically for powering noise-critical RF, wireless, and precision analog subsystems in space-constrained, battery-operated equipment.
FAQ
What is the maximum output current specification for MAX8840EYT27+TG65?
The MAX8840EYT27+TG65 is guaranteed to deliver 150mA continuous output current under all operating conditions. Its current limit is specified from 150mA (min) to 300mA (max), and the device tolerates indefinite output short-circuit events without damage due to integrated current limiting and thermal protection.
Does MAX8840EYT27+TG65 require an external feedback resistor network?
No, MAX8840EYT27+TG65 does not require external feedback resistors. It is a factory-preset 2.7V regulator with internal voltage-divider; the FB pin is absent - only the MAX8842 variant supports adjustable output via external resistors. The MAX8840EYT27+TG65 uses pins IN, GND, SHDN, BP, N.C., and OUT exclusively.
What capacitor value is required on the BP pin of MAX8840EYT27+TG65 for optimal noise performance?
A 10nF capacitor between the BP and OUT pins is required to achieve the specified 11µVRMS output noise for MAX8840EYT27+TG65. Values below 1nF or above 100nF are not recommended; increasing capacitance slightly reduces noise, but deviations outside the 1nF–100nF range degrade startup behavior or noise suppression efficacy.
Can MAX8840EYT27+TG65 operate with input voltages below 2.7V?
Yes, MAX8840EYT27+TG65 can operate with input voltages as low as 2V, but output regulation is only maintained while VIN ≥ VOUT + dropout voltage. At 120mA load, dropout is 120mV, so minimum functional VIN is 2.82V. Below this, output drops linearly - enabling graceful brownout behavior in battery-powered systems approaching end-of-life.
Is the µDFN package of MAX8840EYT27+TG65 compatible with standard reflow profiles?
Yes, the MAX8840EYT27+TG65 µDFN-6 (1.5mm × 1.0mm) package is rated for standard lead-free reflow per JEDEC J-STD-020. Its 0.65mm pitch, wettable flanks, and 0.8mm height support reliable solder joint formation and automated optical inspection in high-volume SMT assembly lines.
MAX8840EYT27+TG65 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-UFLGA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.135V @ 120mA (Typ)
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 78dB ~ 54dB (1kHz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTLGA (1.5x1.0)
MAX8840EYT27+TG65 FAQ
1.How can I place an order for MAX8840EYT27+TG65 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8840EYT27+TG65 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 MAX8840EYT27+TG65 reliable?
The price and inventory of MAX8840EYT27+TG65 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8840EYT27+TG65 is usually 5 days.
3.What payment methods are accepted for MAX8840EYT27+TG65?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8840EYT27+TG65 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8840EYT27+TG65?
MAX8840EYT27+TG65 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8840EYT27+TG65 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 MAX8840EYT27+TG65?
For technical support, including MAX8840EYT27+TG65 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8840EYT27+TG65 requirements.
6.How does Aetrix verify that MAX8840EYT27+TG65 is sourced from the original manufacturer or authorized distributors?
All MAX8840EYT27+TG65 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 MAX8840EYT27+TG65 meets industry standards.
7.What is the process for return or replacement of MAX8840EYT27+TG65?
All MAX8840EYT27+TG65 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8840EYT27+TG65, 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 MAX8840EYT27+TG65 part is unused and in its original packaging.
Return procedure for MAX8840EYT27+TG65:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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