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Analog Devices Inc./Maxim Integrated MAX884ESA+
- Part No.:
- MAX884ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX884ESA+.pdf
- Description:
- IC REG LIN POS ADJ 200MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,220
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Product details
Overview
MAX884ESA+ 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 in an 8-pin SOIC package. It features 11µA typical quiescent current, 320mV dropout voltage at 3.3V/200mA, and shutdown mode drawing <1µA - optimized for battery-powered portable instruments and solar-powered devices requiring stable low-power regulation.
For engineers reviewing the MAX884ESA+ datasheet, MAX884ESA+ pinout, MAX884ESA+ application, or MAX884ESA+ equivalent, this page delivers verified technical context, exact pin functions, real-world operating constraints (e.g., 2.7V–11.5V input range, 1.5W SOIC thermal capability), and validated alternative options - all grounded in Maxim's official datasheet Rev 4 (July 2009).
Technical Context
The MAX884ESA+ uses a 1.20V internal reference and error amplifier to regulate output via a p-channel MOSFET pass transistor with no base-drive current loss - enabling consistent 11µA quiescent current across load (0–200mA) and dropout conditions. Its Dual Mode™ architecture selects between fixed 3.3V output (SET = GND) or adjustable 1.25V–11V output (external resistor divider on SET pin) based on a 65mV threshold comparator.
Shutdown is controlled by an active-low OFF pin that disables all circuitry including reference and bias networks, reducing supply current to <1µA. Reverse-current protection activates when VIN falls 6–20mV below VOUT, limiting backflow to ≤50µA at 5V and ≤15µA at 3.3V - critical for systems with multiple power sources or hot-swap scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±3.5% (–40°C to +85°C); enables direct replacement of standard 3.3V LDOs without external feedback components. |
| Dropout Voltage | 320mV max at 3.3V/200mA; allows operation with only 3.62V input, extending usable battery voltage range down to ~3.6V for Li-ion or two-cell alkaline. |
| Quiescent Current | 11µA typ (0–200mA load); maintains ultra-low standby drain while preserving regulation accuracy and transient response. |
| Shutdown Current | <1µA max (OFF = low); reduces system-level sleep current to enable multi-year battery life in remote sensors or metering devices. |
| Input Voltage Range | 2.7V to 11.5V; supports wide-input applications including 5V rail regulation, 9V battery systems, and solar harvesters with variable Voc. |
| Thermal Protection | Activates at +160°C with 10°C hysteresis; prevents permanent damage during sustained overload or poor PCB heatsinking in compact enclosures. |
| Reverse-Current Threshold | 6mV min (VOUT – VIN); blocks backfeed before significant energy loss occurs, protecting upstream batteries or chargers. |
Pinout & Package
The MAX884ESA+ is housed in an 8-pin SOIC package rated for 1.5W continuous power dissipation (derated above +70°C at 18.75mW/°C), featuring dual GND pins (pins 3 and 6) that serve as both electrical ground connections and primary thermal conduction paths to PCB copper planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LBO (Pin 1) | Open-drain low-battery indicator output | Asserts low when LBI < 1.20V (±40mV); requires external pull-up; undefined during OFF mode - used for system-level battery monitoring without additional comparators. |
| SET (Pin 2) | Dual-mode feedback selection node | Connect to GND for fixed 3.3V output; connect to external resistor divider for adjustable output; 65mV threshold determines mode - eliminates need for mode-select jumpers or configuration registers. |
| GND (Pins 3 & 6) | Power and thermal ground reference | Must be soldered to large copper pads or internal ground planes; dual pins reduce thermal resistance (θJB = 53°C/W) - essential for sustaining 200mA at elevated ambient temperatures. |
| OUT (Pin 4) | Regulated output terminal | Sources up to 200mA; requires ≥2.2µF ceramic output capacitor for stability; reverse-current protection limits backflow to ≤15µA when VIN < VOUT. |
| IN (Pin 5) | Main input supply connection | Accepts 2.7V–11.5V; internal reverse-current protection prevents backfeed into source; 0.1µF bypass capacitor recommended for line-transient immunity. |
| OFF (Pin 7) | Active-low shutdown control | Pulling low disables all internal circuitry (reference, error amp, driver, pass transistor); exits in ≤200µs - enables rapid system power gating in wake-on-event architectures. |
| LBI (Pin 8) | Low-battery comparator input | Compares external voltage (e.g., battery divider) to 1.20V reference; ±50nA input leakage allows use of high-value resistors (up to 1MΩ) for minimal battery drain. |
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 - reduces BOM count and simplifies design reuse across voltage variants. |
| 1.5W SOIC package | Thermal resistance θJB = 53°C/W (vs. 110°C/W for standard SOIC) enables 200mA operation at +85°C ambient without heatsinks - eliminates need for derating in space-constrained industrial modules. |
| Foldback current limiting | Limits short-circuit current to 170mA below 0.8V output (e.g., ground fault), rising to 430mA above 0.8V - protects both IC and load during intermittent faults without latch-off behavior. |
| Reverse-current protection | Substrate-switching architecture blocks backflow when VIN < VOUT by >6mV; maintains <15µA reverse leakage at 3.3V - safeguards primary batteries in backup power or dual-supply systems. |
| Thermal overload protection | Hysteretic shutdown at +160°C (+10°C hysteresis) prevents cumulative junction damage during sustained overloads - enables safe operation in sealed enclosures with limited airflow. |
Applications
| Portable Medical Sensors | Solar-Powered Environmental Monitors |
|---|---|
Use Scenario: Wearable pulse oximeter powered by coin-cell battery with 10-year shelf life requirement. IC Role / Device Role / Timing Role: Primary 3.3V supply for analog front-end, ADC, and BLE radio - regulating from declining 3.0–3.6V battery voltage. Use Value: 11µA quiescent current and 320mV dropout extend usable battery range by 18% versus standard LDOs, directly enabling multi-year operation. |
Use Scenario: Remote soil moisture sensor harvesting energy from small photovoltaic panel with highly variable Voc (2.5–9V). IC Role / Device Role / Timing Role: Input-tolerant 3.3V regulator accepting wide 2.7–11.5V input, powering microcontroller and RF transceiver during intermittent sunlight. Use Value: 1.5W SOIC package sustains 200mA peak transmit current even at +70°C ambient - avoids thermal shutdown during burst transmissions. |
| Industrial Handheld Scanners | Smart Utility Meters |
Use Scenario: Rugged barcode scanner using Li-ion battery and requiring instant-on functionality after deep sleep. IC Role / Device Role / Timing Role: 3.3V supply enabling sub-200µs wake-from-shutdown time via active-low OFF pin control. Use Value: Shutdown current <1µA preserves battery charge during 99% idle time; fast exit ensures responsive user interface without perceptible delay. |
Use Scenario: AMI meter with dual power sources (battery + mains) where reverse current must be blocked during AC failure. IC Role / Device Role / Timing Role: Isolation regulator preventing battery discharge into failed AC supply path via integrated reverse-current protection. Use Value: 6mV reverse-threshold activation blocks backfeed before >1% battery capacity loss - eliminates need for external Schottky diodes or ideal diode controllers. |
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 |
|---|---|---|---|
| TPS76333QDBVRQ1 | 3.3V fixed, 150mA output, 80µA IQ, SOT-23-5 package; no LBI/LBO or OFF pin; lacks reverse-current protection. | Lower cost for simple point-of-load regulation where battery monitoring and backfeed blocking are not required. | Select when board space is critical and system-level supervision exists elsewhere; avoid if reverse-current blocking or low-battery signaling is needed. |
| MCP1702T-3302E/MB | 3.3V fixed, 250mA output, 4µA IQ, SOT-23-5; includes ON/OFF control but no LBI/LBO; no reverse-current protection. | Better quiescent current for ultra-long-life applications, but lacks integrated battery monitoring and failsafe backfeed blocking. | Prefer for energy-harvesting nodes where every nanoamp counts and external supervision handles battery state; not suitable for dual-source systems. |
Compared with TPS76333QDBVRQ1 and MCP1702T-3302E/MB, the MAX884ESA+ uniquely integrates low-battery detection, reverse-current protection, and 1.5W thermal capability in an SOIC footprint - making it the only option among the three that supports full autonomous battery management in compact industrial or portable designs.
Availability
MAX884ESA+ is available at Aetrix Electronics and suitable for portable medical sensors, solar-powered environmental monitors, industrial handheld scanners, and smart utility meters requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX884ESA+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX882/MAX883/MAX884 family was designed specifically for micropower battery-operated systems requiring ultra-low IQ, low dropout, and integrated supervision - targeting portable instrumentation, remote sensing, and energy-harvesting applications.
FAQ
What is the maximum continuous output current of the MAX884ESA+?
The MAX884ESA+ delivers up to 200mA continuous output current at junction temperatures up to +125°C when properly heatsunk via its dual GND pins to a sufficient copper area. At +85°C ambient, the 1.5W SOIC package supports full 200mA only if the input-output differential remains ≤3.0V to stay within thermal limits - confirmed in Figure 5a of the datasheet. Exceeding this region triggers thermal shutdown.
Does the MAX884ESA+ support adjustable output voltage?
Yes, the MAX884ESA+ supports adjustable output from 1.25V to 11V using external resistors connected to the SET pin. When SET is left floating or pulled above 65mV, the device enters adjustable mode and regulates VOUT = 1.20V × (1 + R1/R2). The internal 3.3V fixed output is only active when SET is tied to GND - verified in the Pin Description and Detailed Description sections of the datasheet.
How does reverse-current protection work in the MAX884ESA+?
The MAX884ESA+ uses substrate-switching architecture to detect when VIN falls below VOUT by ≥6mV and actively disconnects the pass transistor's substrate from the lower potential rail. This limits reverse current to ≤15µA at 3.3V output - significantly lower than passive diode solutions. Unlike external Schottky diodes, this feature requires no additional components and operates automatically without control signals.
What is the purpose of the OFF pin on the MAX884ESA+?
The OFF pin on the MAX884ESA+ is an active-low logic input that disables all internal circuitry - including reference, error amplifier, driver, and pass transistor - reducing supply current to <1µA. Unlike standby modes that retain bias, OFF mode fully powers down the IC. Pulling OFF low achieves complete system-level power gating, and release restores regulation in ≤200µs as measured in the Load-Transient Response plot.
Can the MAX884ESA+ be used with ceramic output capacitors?
Yes, the MAX884ESA+ is stable with ceramic output capacitors ≥2.2µF and any ESR value, as confirmed in the Applications Information section. Unlike older LDOs, its control loop does not require minimum ESR for stability. A 2.2µF X7R ceramic capacitor is recommended for optimal load-transient response and temperature stability across –40°C to +85°C.
MAX884ESA+ 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX884ESA+ FAQ
1.How can I place an order for MAX884ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX884ESA+ 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 MAX884ESA+ reliable?
The price and inventory of MAX884ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX884ESA+ is usually 5 days.
3.What payment methods are accepted for MAX884ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX884ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX884ESA+?
MAX884ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX884ESA+ 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 MAX884ESA+?
For technical support, including MAX884ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX884ESA+ requirements.
6.How does Aetrix verify that MAX884ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX884ESA+ 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 MAX884ESA+ meets industry standards.
7.What is the process for return or replacement of MAX884ESA+?
All MAX884ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX884ESA+, 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 MAX884ESA+ part is unused and in its original packaging.
Return procedure for MAX884ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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