My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8865REUA-G002
- Part No.:
- MAX8865REUA-G002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX8865REUA-G002.pdf
- Description:
- IC REG LINEAR LDO
- Quantity:
- Payment:
- Shipping:
Inventory:200
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8865REUA-G002 from Maxim Integrated is a dual, low-dropout linear regulator IC with fixed 2.80V outputs per channel, operating from +2.5V to +5.5V input and delivering up to 100mA per output. It features 55mV dropout at 50mA, 105µA no-load supply current, and independent active-low shutdown control-designed for space-constrained, battery-powered portable electronics including cellular phones and PCMCIA cards.
For engineers reviewing the MAX8865REUA-G002 datasheet, MAX8865REUA-G002 pinout, MAX8865REUA-G002 application, or MAX8865REUA-G002 equivalent, key selection criteria include fixed dual-output voltage matching (2.80V), µMAX-8 package compatibility, thermal shutdown behavior, reverse battery protection, and Dual Mode™ configurability via SET pins.
Technical Context
The MAX8865REUA-G002 integrates two independent P-channel MOSFET-based LDO regulators sharing a 1.25V bandgap reference and thermal sensor. Each regulator uses an error amplifier, MOSFET driver, and internal feedback divider to maintain regulation-enabling preset 2.80V operation when SET1/SET2 are grounded.
Dual Mode™ logic selects feedback path based on SET pin voltage (<60mV triggers internal fixed-voltage mode). Shutdown control is independent per channel, with no shared enable logic; the MAX8865REUA-G002 lacks auto-discharge (a MAX8866-exclusive feature), confirmed by functional diagram and datasheet section differentiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.80V per channel (±3% over -40°C to +85°C), verified in Electrical Characteristics table for MAX886_R variants |
| Max Output Current | 100mA per channel-supports dual-rail loads like baseband + RF sections in cellular handsets |
| Dropout Voltage | 55mV at 50mA load-enables operation down to VIN = 2.855V while sustaining 2.80V output |
| No-Load Supply Current | 105µA-minimizes quiescent drain during standby in battery-critical applications |
| Input Voltage Range | +2.5V to +5.5V-covers single-cell Li-ion (2.7–4.2V) and 3.3V/5V system rails |
| Thermal Shutdown | Triggers at +170°C junction temperature with +20°C hysteresis-prevents permanent damage during overload |
| Reverse Battery Protection | Limits reverse current to <1mA if VIN or SHDN falls below GND-protects battery and PCB traces |
Pinout & Package
MAX8865REUA-G002 is housed in an 8-pin µMAX package (3.0mm × 3.0mm, 0.65mm pitch), with exposed pad for thermal dissipation. Pin assignments follow standard MAX8865 topology and are validated against the "Pin Description" and "TOP VIEW" diagrams in the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 (Pin 1) | Regulator 1 output | Sources up to 100mA; requires 1µF ceramic bypass to GND for stability |
| IN (Pin 2) | Input supply rail | Accepts +2.5V to +5.5V; requires 2µF ceramic bypass to GND |
| GND (Pin 3) | Power ground | Common return path; must connect to large copper area for thermal management |
| OUT2 (Pin 4) | Regulator 2 output | Independent 100mA source; identical specs and bypassing as OUT1 |
| SET2 (Pin 5) | Feedback select for OUT2 | Grounded to fix OUT2 at 2.80V; ties to external resistor divider for adjustable mode |
| SET1 (Pin 6) | Feedback select for OUT1 | Grounded to fix OUT1 at 2.80V; enables Dual Mode™ configuration |
| SHDN1 (Pin 7) | Active-low enable for OUT1 | Pull low to disable OUT1; high-impedance when pulled to IN for normal operation |
| SHDN2 (Pin 8) | Active-low enable for OUT2 | Independent control of OUT2; no auto-discharge function (MAX8866 only) |
Key Features
| Feature | Design Value |
|---|---|
| Dual Mode™ operation | Enables fixed 2.80V output or adjustable 1.25V–5.5V via external resistors-eliminates need for separate fixed/adjustable SKUs |
| Low-noise regulation | 350µVRMS output noise (10Hz–1MHz)-suitable for powering ADCs, RF synthesizers, and precision analog circuitry |
| Independent shutdown | Per-regulator SHDN pins allow selective power gating-critical for dynamic power management in handheld devices |
| P-channel pass transistor | 1.1Ω typical RDS(ON) enables ultra-low dropout and eliminates base-drive current-extends battery life vs. PNP-based LDOs |
| Reverse battery protection | Blocks >99% of reverse current when VIN < 0V-prevents battery leakage and thermal runaway without external diodes |
Applications
| Cellular Telephones | Cordless Telephones |
|---|---|
Use Scenario: Powering baseband processor and RF transceiver from a single Li-ion cell. IC Role / Device Role / Timing Role: Dual LDO provides isolated, low-noise 2.80V rails-one for digital core, one for sensitive RF front-end. Use Value: 55mV dropout extends usable battery range; independent shutdown enables sleep-mode current reduction below 105µA. |
Use Scenario: Regulating power for DSP, codec, and display in DECT handsets. IC Role / Device Role / Timing Role: Delivers stable 2.80V to both signal-processing and user-interface subsystems with minimal cross-talk. Use Value: <1mV cross-regulation ensures display brightness remains unaffected during voice processing bursts. |
| PCMCIA Cards | Palmtop Computers |
Use Scenario: Providing dual regulated supplies during hot-plug insertion into laptops. IC Role / Device Role / Timing Role: Acts as interface-level power manager-accepts variable host bus voltage (3.3V/5V) and delivers clean 2.80V to card logic. Use Value: Reverse battery protection prevents damage if card is inserted incorrectly; 2.5V–5.5V input range ensures compatibility across host platforms. |
Use Scenario: Powering CPU core and memory subsystems in compact PDAs. IC Role / Device Role / Timing Role: Supplies tightly regulated 2.80V to low-voltage microcontrollers and SRAM banks. Use Value: 105µA no-load current minimizes standby drain; µMAX-8 footprint saves board space in tight form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8865SEUA | Fixed 2.84V outputs (vs. 2.80V); otherwise identical pinout, specs, and features | Used where tighter 2.84V tolerance aligns with specific SoC I/O voltage requirements | Select when system-level margin analysis confirms 2.84V meets downstream device VIH/VIL thresholds |
| MAX8865TEUA | Fixed 3.15V outputs; same package, temperature range, and electrical envelope | Preferred for legacy designs requiring higher rail voltage for analog peripherals or older ASICs | Choose only if existing schematic or BOM mandates 3.15V-no functional substitution without voltage validation |
Compared with MAX8865SEUA and MAX8865TEUA, the MAX8865REUA-G002 offers the lowest fixed output voltage (2.80V), enabling optimal power efficiency in modern low-voltage processors while maintaining identical thermal, noise, and shutdown behavior-making it the preferred choice for new designs targeting minimum operating voltage.
Availability
MAX8865REUA-G002 is available at Aetrix Electronics and suitable for cellular telephones, cordless telephones, and PCMCIA cards requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX8865REUA-G002 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, communications, and consumer applications.
The MAX8865 family delivers dual, low-quiescent-current LDOs optimized for battery-powered portable equipment-emphasizing dropout voltage, noise performance, and small-footprint packaging for space-constrained handheld devices.
FAQ
What is the output voltage tolerance of MAX8865REUA-G002 over temperature?
The MAX8865REUA-G002 delivers a nominal 2.80V output with ±3% tolerance across the full -40°C to +85°C operating range, as specified in the Electrical Characteristics table under "VOUT_ Output Voltage" for MAX886_R variants. This tolerance includes initial accuracy, line/load regulation, and thermal drift-ensuring reliable operation in portable environments with wide ambient swings.
Does MAX8865REUA-G002 support adjustable output voltage?
Yes, the MAX8865REUA-G002 supports adjustable output voltage via its Dual Mode™ architecture. When SET1 or SET2 pins are connected to an external resistor divider (instead of GND), the corresponding output can be set from 1.25V to 5.5V using the formula VOUT = 1.25V × (1 + R1/R2). The fixed 2.80V mode is selected only when SET pins are grounded.
Is MAX8865REUA-G002 pin-compatible with MAX8866REUA?
No, MAX8865REUA-G002 is not pin-compatible with MAX8866REUA. While both share the same 8-pin µMAX package and pinout numbering, the MAX8866REUA includes auto-discharge circuitry tied to SHDN1/SHDN2-requiring different internal routing and biasing. Substituting them risks undefined discharge behavior and potential system instability during shutdown.
What is the thermal resistance (θJA) of MAX8865REUA-G002 in the µMAX package?
The MAX8865REUA-G002 has a junction-to-ambient thermal resistance (θJA) of 244°C/W in the 8-pin µMAX package, as stated in the Absolute Maximum Ratings table. This value assumes standard JEDEC test conditions (single-layer copper, no airflow); actual θJA improves significantly with PCB copper pour and thermal vias under the exposed pad.
Can MAX8865REUA-G002 operate with input voltage below 2.5V?
No, MAX8865REUA-G002 is not rated for operation below +2.5V input. The Absolute Maximum Ratings and Electrical Characteristics specify VIN = +2.5V to +5.5V as the valid operating range. Operation below 2.5V may result in loss of regulation, increased dropout, or failure to start-particularly critical given its 2.80V output requirement.
MAX8865REUA-G002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.25V (2.8V)
- Voltage - Output (Max):
- 5.5V
- Voltage Dropout (Max):
- 0.12V @ 50mA, 0.12V @ 50mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 270 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX8865REUA-G002 FAQ
1.How can I place an order for MAX8865REUA-G002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8865REUA-G002 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 MAX8865REUA-G002 reliable?
The price and inventory of MAX8865REUA-G002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8865REUA-G002 is usually 5 days.
3.What payment methods are accepted for MAX8865REUA-G002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8865REUA-G002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8865REUA-G002?
MAX8865REUA-G002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8865REUA-G002 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 MAX8865REUA-G002?
For technical support, including MAX8865REUA-G002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8865REUA-G002 requirements.
6.How does Aetrix verify that MAX8865REUA-G002 is sourced from the original manufacturer or authorized distributors?
All MAX8865REUA-G002 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 MAX8865REUA-G002 meets industry standards.
7.What is the process for return or replacement of MAX8865REUA-G002?
All MAX8865REUA-G002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8865REUA-G002, 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 MAX8865REUA-G002 part is unused and in its original packaging.
Return procedure for MAX8865REUA-G002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8865REUA-G002 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
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
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…
