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Analog Devices Inc./Maxim Integrated MAX884EPA
- Part No.:
- MAX884EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX884EPA.pdf
- Description:
- IC REG LINEAR 3.3V OR ADJ LDO
- Quantity:
- Payment:
- Shipping:
Inventory:836
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Product details
Overview
MAX884EPA from Maxim Integrated is a 3.3V fixed-output, low-dropout linear regulator with p-channel MOSFET pass transistor, 200mA output current capability, 11µA typical quiescent current, and 320mV dropout voltage at 3.3V/200mA - designed for battery-powered portable instruments and solar-powered devices requiring stable low-power regulation.
For engineers reviewing the MAX884EPA datasheet, MAX884EPA pinout, MAX884EPA application, or MAX884EPA equivalent, key selection criteria include its -40°C to +85°C extended temperature grade, 1.5W high-power SOIC-8 package, Dual Mode™ adjustable/fixed output architecture, reverse-current protection threshold of 6–20mV, and shutdown current <1µA.
Technical Context
The MAX884EPA implements a 1.20V internal reference and error amplifier driving a p-channel MOSFET pass device with no base current draw, enabling ultra-low IQ across load and dropout conditions. 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).
It integrates foldback current limiting (430mA above 0.8V VOUT, 170mA during short-circuit), thermal shutdown at +160°C with 10°C hysteresis, reverse-current protection that disables conduction when VIN falls 6–20mV below VOUT, and a functional low-battery comparator (LBI/LBO) active in normal and standby modes but undefined in OFF mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±3.5% over -40°C to +85°C; supports 1.25V–11V adjustable mode via external resistors. |
| Dropout Voltage | 320mV max at 3.3V/200mA - enables regulation down to VIN = 3.62V under full load. |
| Quiescent Current | 11µA typ / 15µA max (no load to 200mA); <1µA in OFF mode - extends battery life in sleep states. |
| Input Voltage Range | 2.7V to 11.5V - supports single-cell Li-ion, multi-cell alkaline, and solar input sources. |
| Output Current | 200mA continuous; 250mA peak within safe operating area defined by thermal limits and (VIN–VOUT). |
| Protection Features | Foldback current limit, reverse-current protection (6–20mV threshold), thermal shutdown (+160°C), and low-battery detection (1.20V LBI threshold). |
| Package Power Rating | 1.5W SOIC-8 (θJB = 53°C/W) - enables higher VIN/VOUT differentials than standard SOIC packages. |
Pinout & Package
MAX884EPA is housed in an 8-pin plastic DIP (PDIP) package rated for -40°C to +85°C operation. The package provides dual GND pins (pins 3 and 6) for enhanced thermal dissipation and low-impedance grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - LBO | Open-drain low-battery output | Asserts low when LBI < 1.20V; requires external pull-up; undefined during OFF mode. |
| 2 - SET | Dual Mode™ feedback select | Connect to GND for 3.3V fixed output; connect to resistor divider for adjustable mode (1.25V–11V). |
| 3,6 - GND | Power and signal ground | Both pins must be soldered to PCB ground plane for thermal management and noise immunity. |
| 4 - OUT | Regulated output | Delivers up to 200mA; requires ≥2.2µF ceramic output capacitor for stability. |
| 5 - IN | Input supply | Accepts 2.7V–11.5V; requires 0.1µF bypass capacitor near pin. |
| 7 - OFF | Active-low shutdown control | Pulls low to disable all circuitry; reduces IQ to <1µA; connect to IN for normal operation. |
| 8 - LBI | Low-battery comparator input | Monitors battery voltage via resistor divider; 1.20V threshold with 7mV hysteresis. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Mode™ operation | Single-pin (SET) selection between factory-trimmed 3.3V output and user-adjustable 1.25V–11V range - eliminates BOM variants. |
| p-Channel MOSFET pass device | Zero base current draw ensures constant 11µA IQ from no-load to 200mA - no PNP saturation losses in dropout. |
| Reverse-current protection | Automatically disables conduction when VIN drops 6–20mV below VOUT - prevents battery drain in backup/solar systems. |
| High-power 8-pin PDIP | Rated for 1.5W dissipation (vs. 0.47W standard SOIC) - supports wider VIN/VOUT combinations without derating. |
| Integrated low-battery monitor | LBI/LBO block with 1.20V reference and 7mV hysteresis - enables power-fail warning without external comparators. |
Applications
| Portable Medical Sensors | Solar-Powered Data Loggers |
|---|---|
Use Scenario: Wearable ECG sensor powered by coin-cell battery with intermittent wireless transmission. IC Role / Device Role / Timing Role: Primary 3.3V supply for MCU, ADC, and BLE radio; regulates voltage as battery discharges from 3.6V to 2.7V. Use Value: 320mV dropout ensures regulation until battery reaches 3.02V; 11µA IQ extends runtime >6 months on CR2032. |
Use Scenario: Remote environmental monitor powered by small photovoltaic panel and supercapacitor buffer. IC Role / Device Role / Timing Role: Stable 3.3V rail for microcontroller and temperature/humidity sensors during variable light conditions. Use Value: Reverse-current protection prevents supercapacitor discharge back into PV cell at night; 2.7V min VIN enables operation at dawn/dusk. |
| Industrial Handheld Scanners | Low-Power IoT Edge Nodes |
Use Scenario: Rugged barcode scanner using alkaline AA batteries with cold-temperature operation requirement. IC Role / Device Role / Timing Role: Main system regulator delivering 200mA pulses to laser diode and image sensor during scan events. Use Value: -40°C to +85°C rating ensures reliability in warehouse/freezer environments; thermal shutdown protects during sustained high-current bursts. |
Use Scenario: Battery-operated LoRaWAN node sampling sensors every 5 minutes and transmitting once per hour. IC Role / Device Role / Timing Role: Always-on 3.3V supply for RTC, memory, and wake-up logic; OFF pin controlled by MCU to cut leakage between cycles. Use Value: <1µA shutdown current minimizes quiescent drain; Dual Mode™ allows future firmware updates to support 2.5V sensor rails via resistor change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76333QDBVRQ1 | 3.3V fixed, 150mA output, 120µA IQ, 300mV dropout at 150mA; automotive-grade (-40°C to +125°C) | Lower output current and higher IQ reduce suitability for 200mA pulsed loads; better for AEC-Q100-compliant automotive modules | Select if automotive qualification and higher temp range are required, and 150mA peak load is sufficient. |
| MCP1703T-3302E/MB | 3.3V fixed, 250mA output, 4µA IQ, 600mV dropout at 250mA; SOT-23-5 package | Lower IQ improves ultra-low-power sleep performance, but higher dropout limits usable input range; smaller footprint saves board space | Select for space-constrained designs where 600mV dropout is acceptable and peak load ≤250mA. |
Compared with TPS76333QDBVRQ1 and MCP1703T-3302E/MB, the MAX884EPA uniquely balances 200mA capability, 320mV dropout, 11µA IQ, and -40°C to +85°C operation in a through-hole PDIP package - making it optimal for industrial portable equipment requiring robust thermal margin and legacy-compatible mounting.
Availability
MAX884EPA is available at Aetrix Electronics and suitable for portable medical sensors, solar-powered data loggers, industrial handheld scanners, low-power IoT edge nodes, and battery-backed instrumentation requiring stable component supply across extended temperature ranges.
Supply support for MAX884EPA 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, communications, and consumer applications.
The MAX882/MAX883/MAX884 product line was engineered for ultra-low-power battery regulation in portable and energy-harvesting systems - emphasizing micropower IQ, low dropout, integrated protection, and flexible output configuration.
FAQ
What is the maximum continuous output current of the MAX884EPA?
The MAX884EPA delivers 200mA continuously under thermal and voltage-differential constraints. At higher loads, safe operation depends on (VIN – VOUT) and PCB thermal design - e.g., at VIN = 5.5V and VOUT = 3.3V, 200mA is sustainable; at VIN = 11.5V, maximum current drops to ~100mA to stay within 1.5W package limit. Derating curves are provided in Figure 5a of the MAX884EPA datasheet.
Does the MAX884EPA support adjustable output voltage?
Yes, the MAX884EPA supports adjustable output from 1.25V to 11V using external resistors connected to the SET pin. When SET is grounded, it operates in fixed 3.3V mode. In adjustable mode, VOUT = 1.20V × (1 + R1/R2), where R2 connects SET to GND and R1 connects OUT to SET. Input bias at SET is ±50nA, enabling high-value resistors to minimize power loss.
What is the purpose of the OFF pin on the MAX884EPA?
The OFF pin is an active-low logic input that places the MAX884EPA into ultra-low-power shutdown mode, reducing supply current to <1µA. Unlike the MAX882's STBY pin, OFF disables all internal circuitry - including reference, LBI/LBO comparator, and bias networks - maximizing battery life during extended idle periods. Connect OFF to IN for normal operation.
How does reverse-current protection work in the MAX884EPA?
The MAX884EPA monitors the differential between OUT and IN. When VIN falls 6–20mV below VOUT, its internal protection circuit switches substrate and power bus connections to isolate the input, turning off the p-channel pass transistor. This limits reverse current to ~15µA at 3.3V - critical for preventing battery discharge in solar-charged or backup-supply systems where input may be absent or lower than output.
What output capacitor is required for stable operation of the MAX884EPA?
The MAX884EPA requires a minimum 2.2µF ceramic output capacitor at the OUT pin for guaranteed stability across all operating conditions. Capacitor ESR has no stability impact if capacitance meets or exceeds this value. Larger values improve load-transient response; X7R or X5R dielectrics are recommended for stable performance over -40°C to +85°C. An optional 0.1µF ceramic input capacitor is also recommended at the IN pin.
MAX884EPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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-PDIP
MAX884EPA FAQ
1.How can I place an order for MAX884EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX884EPA 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 MAX884EPA reliable?
The price and inventory of MAX884EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX884EPA is usually 5 days.
3.What payment methods are accepted for MAX884EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX884EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX884EPA?
MAX884EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX884EPA 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 MAX884EPA?
For technical support, including MAX884EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX884EPA requirements.
6.How does Aetrix verify that MAX884EPA is sourced from the original manufacturer or authorized distributors?
All MAX884EPA 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 MAX884EPA meets industry standards.
7.What is the process for return or replacement of MAX884EPA?
All MAX884EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX884EPA, 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 MAX884EPA part is unused and in its original packaging.
Return procedure for MAX884EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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