My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8840ELT27+G65
- Part No.:
- MAX8840ELT27+G65
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WFDFN
- Datasheet:
-
MAX8840ELT27+G65.pdf
- Description:
- IC REG LINEAR 2.7V 150MA 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,474
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8840ELT27+G65 from Maxim Integrated is a preset 2.7V 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 78dB PSRR at 1kHz - designed for powering noise-sensitive RF and analog circuitry in portable battery-powered systems.
For engineers reviewing the MAX8840ELT27+G65 datasheet, MAX8840ELT27+G65 pinout, MAX8840ELT27+G65 application, or MAX8840ELT27+G65 equivalent, key selection criteria include guaranteed 2.7V ±3% output accuracy across load/temperature, 40µA ground current at light load, shutdown current <1µA, and stable operation with only 1µF ceramic output capacitance.
Technical Context
The MAX8840ELT27+G65 employs a p-channel MOSFET series pass transistor (typ. RDS(ON) = 1Ω) enabling low dropout and minimal quiescent current without base-drive loss. Its bandgap reference (1.225V) feeds an error amplifier that controls the pass gate via internal feedback, ensuring tight regulation under dynamic load conditions.
Noise performance is enhanced by a dedicated BP pin connected to a 10nF bypass capacitor between BP and OUT, which shunts high-frequency noise from the bandgap core - a feature exclusive to the MAX8840 variant and not present in MAX8841/MAX8842.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.7V ±3% over -40°C to +85°C, enabling direct replacement of 2.7V logic rails without external resistors. |
| Max Output Current | Guaranteed 150mA continuous, supporting power delivery to multiple low-power ICs (e.g., RF transceivers, ADCs) from a single LDO. |
| Dropout Voltage | 120mV at 120mA load, allowing operation down to VIN = 2.82V - critical for extending battery life in single-cell Li-ion (2.8V–4.2V) systems. |
| Output Noise | 11µVRMS (100Hz–100kHz), measured with 10nF BP capacitor, meeting stringent requirements for PLL/VCO supply filtering. |
| PSRR | 78dB at 1kHz and 54dB at 100kHz, suppressing switching noise from upstream DC-DC converters feeding sensitive analog blocks. |
| Ground Current | 40µA typical at light load, reducing standby power consumption in always-on sensor nodes and IoT endpoints. |
| Shutdown Current | <1µA, enabling deep-sleep modes in portable devices without compromising system-level power budget. |
Pinout & Package
MAX8840ELT27+G65 is housed in a lead-free 6-pin µDFN package measuring 1.5mm × 1.0mm × 0.8mm, with exposed thermal pad (pin 5) tied to GND for enhanced thermal dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Unregulated Input Supply | Accepts 2V–6V input; requires 1µF ceramic decoupling close to pin for stability and line-transient suppression. |
| 2 GND | Ground Reference & Thermal Path | Primary return path for load current and internal bias; must connect to large copper area or ground plane for thermal management. |
| 3 SHDN | Active-Low Shutdown Control | Pull ≤0.4V to disable regulator; draws <0.01µA bias current, enabling direct GPIO control without level-shifting. |
| 4 BP | Noise Bypass Terminal | Connects 10nF capacitor to OUT to reduce output voltage noise by >90% - unique to MAX8840 family members. |
| 5 N.C. | No Connection | Not internally bonded; must remain unconnected and unpopulated on PCB to avoid parasitic coupling. |
| 6 OUT | Regulated Output | Delivers stable 2.7V; bypassed with 1µF ceramic capacitor to GND; supports fast load-transient response (≤10mV deviation @ 50mA step). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11µVRMS enables clean power for VCOs, ADCs, and RF front-ends without additional LC filtering. |
| High PSRR at audio frequencies | 78dB rejection at 1kHz suppresses ripple from buck converters operating near 1MHz switching frequency harmonics. |
| Stable with minimal capacitance | Guaranteed stability using only 1µF X7R/X5R ceramic output capacitor - reduces BOM count and board area vs. larger electrolytics. |
| Low-quiescent-current shutdown | <1µA shutdown current extends battery runtime in intermittent-sensing applications such as wearables and remote sensors. |
| Thermal & overcurrent protection | Integrated thermal shutdown (160°C trip, 10°C hysteresis) and current limiting (150–300mA range) prevent damage during fault conditions. |
Applications
| Cellular RF Front-End Power | Portable Audio Codec Supply |
|---|---|
Use Scenario: Powering low-noise amplifiers (LNAs) and mixer stages in 4G/5G handset RF modules where supply noise directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Primary 2.7V LDO supplying analog signal chain; replaces noisier switching regulators to meet -160dBc/Hz phase noise targets. Use Value: 11µVRMS noise and 78dB PSRR ensure RF signal integrity remains uncompromised even when sharing battery with noisy digital subsystems. | Use Scenario: Providing clean bias voltage to stereo audio DACs and headphone amplifiers in Bluetooth earbuds with single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Dedicated low-noise 2.7V rail isolating audio analog section from digital domain; operates down to 2.82V input during battery discharge. Use Value: 120mV dropout and 40µA quiescent current extend playback time while maintaining SNR >110dB across full battery voltage range. |
| Digital Camera Image Sensor Bias | Industrial Wireless Sensor Node Core Supply |
Use Scenario: Delivering regulated 2.7V to CMOS image sensor analog front-end (AFE) and column ADCs where supply ripple causes fixed-pattern noise (FPN). IC Role / Device Role / Timing Role: Low-noise post-regulator after main PMIC; supplies critical analog blocks requiring sub-20µV RMS noise floor. Use Value: BP-capacitor-enabled 11µVRMS noise eliminates FPN artifacts, enabling high-fidelity still capture without post-processing correction. | Use Scenario: Powering ultra-low-power microcontroller, LoRa transceiver, and environmental sensors in battery-operated industrial monitoring nodes deployed for 10+ years. IC Role / Device Role / Timing Role: Always-on 2.7V supply with <1µA shutdown current; activated only during scheduled measurement cycles. Use Value: 40µA ground current and <1µA shutdown draw minimize annual energy drain, supporting long-life primary lithium battery operation. |
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, 300mA output, 14µVRMS noise, 68dB PSRR @ 100kHz, 0.5mm-pitch DQN package (1.0×1.3mm) | Higher output current but higher noise; lacks BP pin architecture for ultra-low-noise optimization | Select when higher load capability is required and 11µVRMS is not mandatory. |
| MCP1703T-2702E/MB | 2.7V fixed, 250mA output, 30µVRMS noise, 60dB PSRR @ 100kHz, SOT-23-5 package | Higher noise and lower PSRR; larger footprint and thermal resistance than µDFN | Select for cost-sensitive designs where ultra-low noise is secondary to procurement availability. |
Compared with TPS7A2027PDQNR and MCP1703T-2702E/MB, MAX8840ELT27+G65 delivers the lowest verified output noise (11µVRMS) and highest PSRR at 1kHz (78dB) in its size class, making it uniquely suited for RF and precision analog supply applications where noise spectral density dominates system-level performance.
Availability
MAX8840ELT27+G65 is available at Aetrix Electronics and suitable for cellular RF front-end power, portable audio codec supply, and digital camera image sensor bias requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX8840ELT27+G65 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 markets.
The MAX8840 family was engineered specifically for ultra-low-noise, high-PSRR power delivery in miniature portable electronics - targeting noise-critical analog and RF subsystems where traditional LDOs introduce unacceptable interference.
FAQ
What is the exact output voltage tolerance of MAX8840ELT27+G65 over temperature and load?
The MAX8840ELT27+G65 guarantees ±3% output voltage accuracy across the full -40°C to +85°C operating temperature range and for load currents from 100µA to 80mA. At 25°C and 1mA load, typical accuracy is ±1%. This specification ensures reliable interface with 2.7V I/O standards and analog circuits requiring tight supply regulation without external trimming.
Does MAX8840ELT27+G65 require an external bypass capacitor on the BP pin, and what happens if it's omitted?
Yes, MAX8840ELT27+G65 requires a 10nF capacitor between BP and OUT to achieve its specified 11µVRMS output noise. Without this capacitor, output noise increases to 230µVRMS (per datasheet Table 2). The BP pin is shorted to OUT during shutdown, so the capacitor also serves as a local charge reservoir for fast wake-up response.
Can MAX8840ELT27+G65 operate with input voltages below 2.7V, and what is the minimum functional input?
MAX8840ELT27+G65 can operate with input voltages as low as 2.82V (2.7V + 120mV dropout) at 120mA load. Below this, regulation fails and output collapses. The absolute minimum input is 2V per Absolute Maximum Ratings, but functional regulation requires VIN ≥ VOUT + dropout voltage - which rises with load current and temperature.
Is the µDFN package of MAX8840ELT27+G65 RoHS-compliant and halogen-free?
Yes, the "+G65" suffix indicates a lead-free, RoHS-compliant, and halogen-free µDFN package per Maxim Integrated's standard compliance policy. The "G" denotes green (halogen-free) and "+" denotes lead-free; full material declarations are available in Maxim's official compliance documentation.
How does the shutdown functionality of MAX8840ELT27+G65 affect output behavior and leakage?
When SHDN is pulled low, MAX8840ELT27+G65 disables its voltage reference, error amplifier, and pass transistor, placing the OUT pin in high-impedance state with <1µA total supply current. No reverse current flows from OUT to IN, and the output voltage decays only due to external load discharge - preserving system isolation during sleep modes.
MAX8840ELT27+G65 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- 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-µDFN (1.5x1)
MAX8840ELT27+G65 FAQ
1.How can I place an order for MAX8840ELT27+G65 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8840ELT27+G65 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 MAX8840ELT27+G65 reliable?
The price and inventory of MAX8840ELT27+G65 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8840ELT27+G65 is usually 5 days.
3.What payment methods are accepted for MAX8840ELT27+G65?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8840ELT27+G65 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8840ELT27+G65?
MAX8840ELT27+G65 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8840ELT27+G65 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 MAX8840ELT27+G65?
For technical support, including MAX8840ELT27+G65 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8840ELT27+G65 requirements.
6.How does Aetrix verify that MAX8840ELT27+G65 is sourced from the original manufacturer or authorized distributors?
All MAX8840ELT27+G65 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 MAX8840ELT27+G65 meets industry standards.
7.What is the process for return or replacement of MAX8840ELT27+G65?
All MAX8840ELT27+G65 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8840ELT27+G65, 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 MAX8840ELT27+G65 part is unused and in its original packaging.
Return procedure for MAX8840ELT27+G65:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8840ELT27+G65 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
