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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:3,006
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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 transistor, 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 specifications, SOIC-8 package layout, Dual Mode™ fixed/adjustable operation details, standby-mode behavior, reverse-current protection thresholds, and real-world thermal/power constraints - all confirmed against Maxim's official 19-0275 Rev 4 datasheet.
Technical Context
The MAX882CSA implements a 1.20V internal reference driving an error amplifier that controls a p-channel MOSFET pass device (RDS(ON) ≈ 1.1Ω), enabling ultra-low quiescent current across load conditions without base-drive losses. Its Dual Mode™ architecture selects between internal 3.3V regulation (SET = GND) or external adjustable output (1.25V–11V) via SET-pin voltage threshold (65mV).
Standby mode (STBY pin active-low) disables output while preserving bias circuitry including LBI comparator and reference, drawing ≤15µA; thermal shutdown activates at +160°C with 10°C hysteresis, and reverse-current protection engages when VOUT − VIN ≥ 6mV (typ), limiting backfeed to <50µA at 3.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±3% (−40°C to +85°C), preset via internal resistor divider; adjustable 1.25V–11V with external SET resistors. |
| Dropout Voltage | 220mV (typ) at 3.3V/200mA - enables stable regulation with only 0.22V headroom, critical for single-cell Li-ion or alkaline systems. |
| Quiescent Current | 11µA (typ) in normal operation; 7µA (typ) in standby mode - extends battery life in always-on monitoring applications. |
| Input Voltage Range | 2.7V to 11.5V - supports wide input sources including multi-cell batteries, solar harvesters, and unregulated DC rails. |
| Thermal Protection | Shuts down at +160°C junction temperature with 10°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Reverse-Current Threshold | 6mV (typ) differential (VOUT − VIN) - blocks backfeed when input collapses below output, protecting upstream power sources. |
| Low-Battery Detection | LBI comparator trips at 1.20V ±40mV with 7mV hysteresis; open-drain LBO asserts low - enables precise battery state-of-charge monitoring. |
Pinout & Package
MAX882CSA uses an 8-pin SOIC package rated for 1.5W power dissipation (θJB = 53°C/W), with exposed GND pins (pins 3 & 6) serving as thermal conduction paths - requires soldering to large copper pads or ground planes for safe 200mA operation at +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LBO) | Open-drain low-battery output | Asserts low when LBI < 1.20V; requires external pull-up; functional in standby but undefined in OFF mode (not applicable to MAX882). |
| 2 (SET) | Dual Mode™ feedback select | Connect to GND for 3.3V fixed output; connect external resistor divider for 1.25V–11V adjustable regulation; threshold = 65mV. |
| 3, 6 (GND) | Power and thermal ground | Both pins must be soldered to PCB ground plane - primary heat path; insufficient grounding causes thermal shutdown at <200mA. |
| 4 (OUT) | Regulated output | Supplies up to 200mA; requires ≥2.2µF ceramic output capacitor for stability; reverse-current protected. |
| 5 (IN) | Input supply | Accepts 2.7V–11.5V; reverse-current protection activates if VIN falls >6mV below VOUT. |
| 7 (STBY) | Active-low standby control | Pulls low to disable output while keeping LBI comparator, reference, and bias alive; draws ≤15µA; threshold = 1.20V ±40mV. |
| 8 (LBI) | Low-battery comparator input | Monitors external voltage divider; ±50nA input leakage allows MΩ-range resistors; tie to IN if unused. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Mode™ Operation | Single-pin (SET) selection between factory-trimmed 3.3V output or user-adjustable 1.25V–11V range - eliminates BOM variants and simplifies design reuse. |
| p-Channel MOSFET Pass Transistor | 1.1Ω RDS(ON) with zero gate drive current - eliminates PNP base-current losses, enabling constant 11µA IQ from no-load to 200mA. |
| Standby Mode (MAX882-specific) | Disables output while retaining LBI comparator, reference, and bias circuitry - supports battery monitoring during system sleep without full shutdown. |
| Foldback Current Limiting | 430mA limit above 0.8V output; reduces to 170mA during short-circuit - protects IC and source during fault conditions for up to 1 minute. |
| Reverse-Current Protection | Automatically isolates IN from OUT when VIN < VOUT − 6mV - prevents battery drain in multi-rail systems or during hot-swap events. |
Applications
| Portable Medical Sensors | Solar-Powered Environmental Loggers |
|---|---|
|
Use Scenario: Wearable ECG sensor powered by coin-cell battery with continuous analog front-end monitoring. IC Role / Device Role / Timing Role: Primary 3.3V supply for ADC, op-amps, and BLE radio; provides stable rail during battery voltage decay from 3.6V to 2.7V. Use Value: 220mV dropout ensures regulation until battery reaches 2.93V; 11µA quiescent current extends operational life beyond 12 months on CR2032. |
Use Scenario: Remote soil moisture node powered by small photovoltaic panel and supercapacitor buffer. IC Role / Device Role / Timing Role: Regulates variable solar input (3.0V–10V) to clean 3.3V for microcontroller and RF transceiver. Use Value: Reverse-current protection prevents nighttime supercapacitor discharge back into PV cell; 2.7V–11.5V input range accommodates wide solar irradiance swings. |
| Industrial Handheld Scanners | Low-Power IoT Edge Nodes |
|
Use Scenario: Barcode scanner using Li-ion battery with intermittent high-current laser and imager bursts. IC Role / Device Role / Timing Role: Supplies 3.3V to MCU and peripherals; STBY pin controlled by host to suspend output during idle periods. Use Value: Standby mode draws only 7µA while preserving LBI comparator function - enables accurate end-of-battery detection without waking host. |
Use Scenario: Battery-operated smart meter with periodic wake-up, sensor reading, and LoRaWAN transmission. IC Role / Device Role / Timing Role: Powers entire system during active cycle; LBO signal triggers firmware battery alert before brownout. Use Value: LBI comparator accuracy (±40mV) and 7mV hysteresis prevent false low-battery alarms during transient load dips. |
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, 85µA IQ (typ), SOT-23-5 package - higher quiescent current, lower output current, smaller footprint. | Lacks standby mode, LBI/LBO, and reverse-current protection - unsuitable for battery-monitoring or multi-rail isolation use cases. | Select when board space is constrained and only basic 3.3V regulation is required; avoid where battery telemetry or reverse protection is needed. |
| MCP1700T-3302E/MB | 3.3V fixed, 250mA max, 1.6µA IQ (typ), SOT-23-3 package - ultra-low IQ but no enable/standby pin, no LBI/LBO, no reverse protection. | No supervision features; limited thermal capability (0.5W SOIC equiv.) - cannot sustain 200mA at elevated ambient temperatures. | Choose for ultra-long-life applications with light loads (<50mA); not viable for 200mA continuous or thermally demanding deployments. |
Compared with TPS76333DBVR and MCP1700T-3302E/MB, the MAX882CSA uniquely combines 200mA output, 11µA IQ, standby mode with live LBI monitoring, and reverse-current protection in a thermally robust SOIC-8 package - making it irreplaceable for feature-rich, battery-critical embedded systems.
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 guaranteed long-term manufacturability.
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 longevity in portable instrumentation - emphasizing ultra-low IQ, thermal resilience, and integrated power supervision functions.
FAQ
What is the maximum continuous output current for MAX882CSA at +85°C ambient?
The MAX882CSA delivers up to 200mA continuous output current at junction temperatures up to +125°C. At +85°C ambient, sustained 200mA operation requires adequate PCB copper area (≥1cm² ground pad per Figure 4) due to its 1.5W SOIC package rating and θJB = 53°C/W thermal resistance. Derating applies above +70°C case temperature.
Does MAX882CSA support adjustable output voltage, and how is it configured?
Yes, MAX882CSA supports adjustable output from 1.25V to 11V via Dual Mode™ operation. To enable adjustment, disconnect SET (pin 2) from GND and connect an external resistor divider between OUT and GND, with the midpoint feeding SET. The output follows VOUT = 1.20V × (1 + R1/R2), where R2 connects to GND.
How does standby mode function on MAX882CSA, and what circuitry remains active?
When STBY (pin 7) is pulled low, MAX882CSA disables the output (VOUT = 0) but keeps the 1.20V reference, low-battery comparator (LBI/LBO), and internal bias circuitry fully operational - drawing ≤15µA. This enables battery monitoring during system sleep without full shutdown.
What is the reverse-current protection threshold for MAX882CSA, and how does it behave?
MAX882CSA activates reverse-current protection when VOUT − VIN exceeds 6mV (typical) or 20mV (max). At that point, the p-channel pass transistor turns off, limiting reverse current to <50µA at 3.3V output. This prevents battery drain when input voltage collapses, such as during hot-swap or multi-rail sequencing.
Can MAX882CSA be used with ceramic output capacitors, and what is the minimum value?
Yes, MAX882CSA is stable with ceramic output capacitors. The minimum required capacitance is 2.2µF, with no ESR dependency - unlike older LDOs. X7R or X5R dielectrics are recommended for stable performance across −40°C to +85°C. Larger values improve load-transient response.
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:
- Obsolete
- 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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