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Analog Devices Inc./Maxim Integrated MAX882CSA+
- Part No.:
- MAX882CSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX882CSA+.pdf
- Description:
- IC REG LIN POS ADJ 200MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:608
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Product details
Overview
MAX882CSA+ from Maxim Integrated is a 3.3V fixed-output, low-dropout linear regulator with p-channel MOSFET pass element, delivering up to 200mA output current at junction temperatures up to +125°C, featuring 11µA typical quiescent current, 220mV dropout at 5V/200mA, and integrated low-battery detection for portable battery-powered systems.
For engineers reviewing the MAX882CSA+ datasheet, MAX882CSA+ pinout, MAX882CSA+ application, or MAX882CSA+ equivalent, this page delivers verified electrical parameters, Dual Mode™ fixed/adjustable operation details, standby-mode behavior (7µA typ), reverse-current protection threshold (6mV), and thermal shutdown characteristics - all confirmed for the MAX882CSA+ variant in 8-pin SOIC package.
Technical Context
The MAX882CSA+ employs a 1.20V internal reference and error amplifier driving a p-channel MOSFET pass transistor, eliminating base-current losses inherent in bipolar regulators. Its Dual Mode™ comparator selects between internal fixed feedback (3.3V) and external resistor-adjustable output (1.25V–11V) based on SET pin voltage (<65mV for fixed mode).
Standby mode (active-low STBY input) disables the output while preserving biasing circuitry, low-battery comparator, and reference - enabling continuous battery monitoring at 7µA typical supply current. Reverse-current protection activates when VIN falls 6mV below VOUT, limiting backflow to ≤15µA at 3.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1.5% (0°C to +85°C); adjustable 1.25V–11V via external resistors on SET pin |
| Dropout Voltage | 220mV at 3.3V/200mA - enables regulation down to VIN = 3.52V, critical for single-cell Li-ion or alkaline battery end-of-life |
| Quiescent Current | 11µA typical (no load to 200mA); 7µA typical in STBY mode - extends battery runtime in always-on monitoring circuits |
| Supply Voltage Range | 2.7V to 11.5V - supports wide-input battery stacks, solar harvesters, and unregulated wall adapters |
| Thermal Protection | Shuts down at TJ = +160°C with 10°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking |
| Reverse-Current Threshold | 6mV (typ) - blocks >99% of backfeed current when input collapses below output, protecting upstream power sources |
| Low-Battery Detection | LBI threshold = 1.20V ±40mV with 7mV hysteresis; open-drain LBO asserts low - enables precise, noise-immune battery gauge signaling |
Pinout & Package
MAX882CSA+ is housed in an 8-pin SOIC package (SO) with exposed thermal pad (1.5W power rating), where pins 3 and 6 are GND - both electrically connected and thermally coupled to PCB ground plane for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LBO) | Open-drain low-battery output | Asserts low when LBI < 1.20V; requires external pull-up; remains functional in STBY mode |
| 2 (SET) | Dual Mode™ feedback select | <65mV → internal 3.3V regulation; >150mV → external resistor-adjustable output (1.25V–11V) |
| 3,6 (GND) | Power and thermal ground | Must be soldered to large copper area; dual role as electrical return and heatsink path |
| 4 (OUT) | Regulated output | Supplies up to 200mA; requires ≥2.2µF ceramic output capacitor for stability |
| 5 (IN) | Input supply | Accepts 2.7V–11.5V; bypass with 0.1µF–10µF capacitor near pin |
| 7 (STBY) | Active-low standby control | Pulls low to disable output while retaining LBI/LBO functionality and 7µA IQ |
| 8 (LBI) | Low-battery comparator input | Monitors battery voltage via resistor divider; ±50nA input leakage enables high-impedance sensing |
Key Features
| Feature | Design Value |
|---|---|
| Dual Mode™ operation | Seamlessly switches between factory-trimmed 3.3V output and user-programmable 1.25V–11V range using same footprint and SET pin logic |
| 1.5W SOIC thermal package | θJB = 53°C/W - enables 200mA continuous output at +85°C ambient without heatsink, unlike standard SOIC (θJB = 110°C/W) |
| Reverse-current protection | Blocks backfeed at 6mV VIN–VOUT differential - eliminates need for external blocking diode in battery backup paths |
| Foldback current limiting | Reduces short-circuit current to 170mA below 0.8V output - protects IC during output-to-ground faults for up to 1 minute |
| Standby mode with live monitoring | Maintains LBI/LBO comparator and reference at 7µA IQ - allows real-time battery state awareness during system sleep |
Applications
| Portable Medical Sensors | Solar-Powered Environmental Loggers |
|---|---|
|
Use Scenario: Wearable pulse oximeter operating from coin-cell battery with multi-day runtime requirement. IC Role / Device Role / Timing Role: Primary 3.3V power rail regulator with ultra-low IQ and standby-triggered data logging. Use Value: 7µA standby current preserves battery life while enabling periodic wake-up and low-battery alert via LBO before shutdown. |
Use Scenario: Remote soil moisture sensor powered by small photovoltaic panel with variable light conditions. IC Role / Device Role / Timing Role: Input-voltage-tolerant (2.7V–11.5V) regulator stabilizing microcontroller supply despite solar voltage fluctuations. Use Value: Reverse-current protection prevents nighttime battery discharge through PV panel; dropout margin ensures operation at dawn/dusk. |
| Industrial Handheld Scanners | Low-Power IoT Edge Nodes |
|
Use Scenario: Rugged barcode scanner using alkaline AA batteries with undervoltage lockout to prevent corrupted reads. IC Role / Device Role / Timing Role: Fixed 3.3V regulator with integrated LBI comparator and programmable STBY threshold for brown-out response. Use Value: Resistor-configurable STBY trip point (e.g., 2.8V) disables motor driver while preserving BLE radio readiness at 7µA. |
Use Scenario: Battery-operated LoRaWAN node transmitting sensor data every 15 minutes with deep-sleep intervals. IC Role / Device Role / Timing Role: Main system regulator with fast startup (<200µs exit from STBY) and low-noise output for ADC precision. Use Value: 250µVRMS output noise and 220mV dropout ensure clean 12-bit ADC readings even during RF transmission bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout, low-IQ linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76333DBVR | 3.3V fixed, 150mA max, 80µA IQ (typ), no standby mode, no LBI/LBO | Lacks battery monitoring and ultra-low-quiescent standby; suitable only for non-battery-critical systems | Select when cost sensitivity outweighs battery runtime and smart monitoring needs |
| MCP1702T-3302E/MB | 3.3V fixed, 250mA max, 4µA IQ (typ), no STBY/LBI/LBO, no reverse-current protection | Lower IQ but no integrated battery sensing or reverse protection - requires external components for full functionality | Choose for longest shelf life in storage; add discrete comparators and diodes if monitoring required |
Compared with TPS76333DBVR and MCP1702T-3302E/MB, the MAX882CSA+ uniquely integrates standby-mode operation (7µA), low-battery detection with hysteresis, and reverse-current blocking - delivering complete power management in one 8-pin SOIC without BOM expansion.
Availability
MAX882CSA+ is available at Aetrix Electronics and suitable for portable medical sensors, solar-powered environmental loggers, industrial handheld scanners, and low-power IoT edge nodes requiring stable component supply with long-term lifecycle assurance.
Supply support for MAX882CSA+ 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 communications applications.
The MAX882CSA+ belongs to Maxim's micropower LDO family, engineered specifically for battery-constrained systems needing extended runtime, intelligent power sequencing, and integrated health monitoring - not just voltage regulation.
FAQ
What is the maximum continuous output current of the MAX882CSA+?
The MAX882CSA+ delivers up to 200mA continuously at junction temperatures ≤+125°C when used with adequate PCB copper area for thermal dissipation. At higher ambient temperatures or with limited heatsinking, derating applies per the 1.5W SOIC package's θJB = 53°C/W specification. The device sustains 200mA only within its safe operating region - defined by input-output differential voltage and ambient temperature - as shown in Figure 5a of the official datasheet. Exceeding these limits triggers thermal shutdown.
Does the MAX882CSA+ support adjustable output voltage?
Yes, the MAX882CSA+ supports adjustable output from 1.25V to 11V using two external resistors connected to the SET pin. When SET is pulled above 150mV (e.g., via resistor divider to OUT), the internal feedback is disabled and the output follows VOUT = 1.20V × (1 + R1/R2). The MAX882CSA+'s Dual Mode™ architecture retains this capability while preserving its 3.3V fixed-output option - making it field-reprogrammable without hardware change.
How does standby mode function on the MAX882CSA+?
Standby mode on the MAX882CSA+ is activated by pulling the STBY pin low, which disconnects the IN-to-OUT path while keeping the 1.20V reference, low-battery comparator, and bias circuitry fully operational. This results in 7µA typical quiescent current - enabling continuous battery voltage monitoring and LBO assertion without powering downstream loads. Unlike OFF mode (used in MAX883/MAX884), STBY preserves all supervisory functions critical for predictive power management.
What is the reverse-current protection threshold for the MAX882CSA+?
The MAX882CSA+ activates reverse-current protection when the input voltage (VIN) falls 6mV below the output voltage (VOUT), at which point the internal substrate switching circuit isolates the input and limits reverse current to ≤15µA at 3.3V output. This threshold is specified as 6mV (typ) and 20mV (max), eliminating the need for an external Schottky diode in battery backup or dual-supply configurations - directly improving efficiency and reducing bill-of-materials cost.
Can the MAX882CSA+ be used with ceramic output capacitors?
Yes, the MAX882CSA+ is stable with ceramic output capacitors ≥2.2µF and requires no minimum ESR - unlike many older LDOs. Its internal compensation is optimized for low-ESR ceramics, simplifying design and reducing board space. A 2.2µF X7R ceramic capacitor placed close to the OUT and GND pins ensures stability across –40°C to +85°C, while larger values (e.g., 10µF) improve transient response for pulsed loads like RF transceivers or microcontroller wake-ups.
MAX882CSA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 11.5V
- Voltage - Output (Min/Fixed):
- 1.25V (3.3V)
- Voltage - Output (Max):
- 11V
- Voltage Dropout (Max):
- 0.64V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 15 µA
- Current - Supply (Max):
- 25 µA
- PSRR:
- -
- Control Features:
- Enable, Low Battery Detection
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX882CSA+ FAQ
1.How can I place an order for MAX882CSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX882CSA+ 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 MAX882CSA+ reliable?
The price and inventory of MAX882CSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX882CSA+ is usually 5 days.
3.What payment methods are accepted for MAX882CSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX882CSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX882CSA+?
MAX882CSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX882CSA+ 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 MAX882CSA+?
For technical support, including MAX882CSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX882CSA+ requirements.
6.How does Aetrix verify that MAX882CSA+ is sourced from the original manufacturer or authorized distributors?
All MAX882CSA+ 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 MAX882CSA+ meets industry standards.
7.What is the process for return or replacement of MAX882CSA+?
All MAX882CSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX882CSA+, 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 MAX882CSA+ part is unused and in its original packaging.
Return procedure for MAX882CSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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