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Analog Devices Inc./Maxim Integrated MAX8530ETTJO
- Part No.:
- MAX8530ETTJO
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX8530ETTJO.pdf
- Description:
- DUAL LOW-DROPOUT LINEAR REGULATO
- Quantity:
- Payment:
- Shipping:
Inventory:1,920
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Product details
Overview
MAX8530ETTJO from Maxim Integrated is a dual low-dropout linear regulator IC with integrated microprocessor reset functionality, designed for space-constrained battery-powered systems. It delivers 200mA from OUT1 and 150mA from OUT2, features 100mV typical dropout at 100mA, 130µA quiescent current, and an open-drain active-low RESET output timed to OUT1 voltage threshold (87% nominal, ≥100ms timeout). It is used in baseband power management for cellular handsets where compact size and reliable power-on reset are critical.
For engineers reviewing the MAX8530ETTJO datasheet, MAX8530ETTJO pinout, MAX8530ETTJO application, or MAX8530ETTJO equivalent, this page provides verified technical context, package-specific pin definitions, real-world application mappings, and validated alternative options - all grounded in the official MAX8530/MAX8531 datasheet (Rev 1, 8/05) and Maxim's ordering documentation.
Technical Context
The MAX8530ETTJO integrates two independent LDO regulators using internal P-channel MOSFET pass transistors, enabling ultra-low quiescent current (130µA) independent of load or dropout condition. Its reset circuit monitors OUT1 voltage and asserts an open-drain active-low signal when falling below 84–89% of nominal output, with ≥100ms timeout after rising edge recovery.
It operates from 2.5V to 6.5V input, supports fixed output voltages between 1.5V and 3.3V in 50mV increments (this variant: OUT1 = 2.85V, OUT2 = 2.6V), and includes thermal shutdown (160°C trip, 10°C hysteresis), short-circuit protection, and independent current limiting (210mA min for OUT1, 165mA min for OUT2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current (OUT1) | 200mA guaranteed - sufficient to power baseband processors or RF ICs without external boost stages. |
| Output Current (OUT2) | 150mA guaranteed - suitable for auxiliary logic, memory I/O, or sensor interfaces in portable devices. |
| Dropout Voltage | 100mV (typ) at 100mA - enables operation down to VIN = VOUT + 0.1V, extending usable battery life in Li-ion discharge profiles. |
| Quiescent Current | 130µA (both LDOs on) - minimizes standby power loss in always-on subsystems like real-time clocks or wake-up controllers. |
| RESET Timeout | ≥100ms (min) after OUT1 reaches 87% of regulation - ensures stable core voltage before releasing processor reset, preventing boot failures. |
| Input Voltage Range | 2.5V to 6.5V - compatible with single-cell Li-ion (2.7–4.2V), Li-poly, or dual-cell alkaline inputs without pre-regulation. |
| Operating Temp | −40°C to +85°C - qualified for industrial and consumer handheld environments including cellular phones and PDAs. |
Pinout & Package
MAX8530ETTJO is supplied in a 6-pin thin QFN package with exposed pad (3mm × 3mm × 0.8mm, pkg code T633-2), optimized for thermal dissipation in high-density PCB layouts. The GND pin and exposed pad must be soldered to a large ground plane to maintain junction temperature within safe limits under full load.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT2 | Regulator 2 output terminal; supplies up to 150mA at fixed voltage (2.6V for ETTJO); requires ≥1µF ceramic output capacitor. |
| 2 | IN | Main input supply connection (2.5V–6.5V); accepts bypass capacitor (2.2µF min) for line transient suppression. |
| 3 | OUT1 | Regulator 1 output terminal; supplies up to 200mA at fixed voltage (2.85V for ETTJO); requires ≥2.2µF ceramic output capacitor. |
| 4 | GND | Common ground reference and primary thermal path; must be connected to PCB ground plane for thermal reliability. |
| 5 | SHDN | Logic-controlled shutdown input; driven low to disable both regulators and reduce supply current to <1µA. |
| 6 | RESET | Open-drain, active-low reset output tied to OUT1 monitoring; asserts low when OUT1 falls below 87% nominal and holds ≥100ms. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDO regulation | Enables simultaneous power delivery to core (OUT1) and I/O (OUT2) domains with separate current limits and stability margins. |
| Integrated microprocessor reset | Eliminates external reset IC and voltage divider components by directly monitoring OUT1 and generating a precise, temperature-stable timeout. |
| P-channel MOSFET pass transistor | Delivers ultra-low quiescent current (130µA) across all load conditions and avoids base-drive losses inherent in PNP-based regulators. |
| Thermal and short-circuit protection | Shuts down automatically at 160°C junction temperature and withstands indefinite output shorting - no external foldback circuitry required. |
| Ultra-small QFN package | 3mm × 3mm footprint with exposed pad reduces board area by >50% vs. SOIC alternatives while maintaining thermal performance. |
Applications
| Cellular Handset Baseband Power | PDAs and Palmtop Computers |
|---|---|
|
Use Scenario: Powering baseband processor core (VCORE) and I/O (VI/O) rails from a single Li-ion cell. IC Role / Device Role / Timing Role: Dual-LDO regulator providing isolated, low-noise 2.85V (OUT1) and 2.6V (OUT2) outputs; RESET ensures clean boot sequence. Use Value: Eliminates need for discrete reset supervisor and reduces BOM count by two components while meeting tight space constraints. |
Use Scenario: Supplying DSP, SRAM, and display controller in handheld computing devices with dynamic voltage scaling. IC Role / Device Role / Timing Role: Dual-output LDO delivering stable 2.85V and 2.6V rails; SHDN enables rapid system sleep/wake transitions. Use Value: 130µA quiescent current extends battery runtime during idle states without sacrificing startup reliability. |
| Notebook Computer Subsystem | Digital Camera Core Logic |
|
Use Scenario: Powering embedded controller, touchpad interface, or secure element in ultraportable notebooks. IC Role / Device Role / Timing Role: Secondary power rail generator with integrated reset for non-CPU subsystems requiring deterministic initialization. Use Value: Guaranteed 200mA/150mA output capability supports burst-mode peripherals without voltage droop or brownout. |
Use Scenario: Regulating image sensor interface, flash memory, and autofocus motor drivers in compact digital cameras. IC Role / Device Role / Timing Role: Dual LDO supplying 2.85V (sensor analog) and 2.6V (digital logic) with coordinated reset assertion. Use Value: 100mV dropout allows operation down to 2.95V input - critical for maintaining function as Li-ion discharges to 3.0V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO-with-reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8530EBTJO | Same electrical specs and reset function, but in 6-bump UCSP (1.16mm × 1.57mm) instead of QFN - 60% smaller footprint. | Preferred for ultra-compact designs where PCB area is more constrained than thermal budget. | Select MAX8530EBTJO only if assembly process supports UCSP reflow and thermal margin permits smaller package. |
| MAX8531ETTJO | Replaces RESET pin with BP (bypass) pin for low-noise operation (40µVRMS); lacks reset functionality entirely. | Suitable for noise-sensitive analog subsystems (e.g., ADC references) but cannot replace MAX8530ETTJO in reset-critical applications. | Choose MAX8531ETTJO only when output noise is the dominant design constraint and external reset generation is available. |
Compared with MAX8530EBTJO, the MAX8530ETTJO offers superior thermal handling in QFN form but requires more PCB area; compared with MAX8531ETTJO, it trades low-noise capability for essential power-on reset assurance - making it the sole choice where deterministic boot timing is mandatory.
Availability
MAX8530ETTJO is available at Aetrix Electronics and suitable for cellular handsets, PDAs, and digital cameras requiring stable component supply with guaranteed long-term manufacturability and RoHS-compliant sourcing.
Supply support for MAX8530ETTJO 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 power management, analog, and mixed-signal ICs for portable, industrial, and communications applications.
The MAX8530/MAX8531 product line was engineered specifically for ultra-low-power, space-constrained battery-operated devices - emphasizing minimal quiescent current, sub-1mm profile packaging, and integrated system-level functions like reset supervision.
FAQ
What output voltages does the MAX8530ETTJO provide?
The MAX8530ETTJO is a factory-configured variant delivering fixed 2.85V on OUT1 and 2.6V on OUT2, as confirmed by its top-mark "ACA" and the Output Voltage Selector Guide in the datasheet. These values are trimmed during production and do not require external feedback resistors.
Does the MAX8530ETTJO include thermal protection?
Yes, the MAX8530ETTJO incorporates thermal-overload protection that disables both regulators when junction temperature exceeds +160°C, with 10°C hysteresis. This feature is fully specified in the Electrical Characteristics table and functional diagram, ensuring safe operation under sustained overload or poor PCB thermal design.
Can the MAX8530ETTJO be used with ceramic output capacitors?
Yes, the MAX8530ETTJO is optimized for ceramic output capacitors. The datasheet specifies minimum values of 2.2µF for OUT1 and 1µF for OUT2 using X7R or X5R dielectrics, and explicitly warns against tantalum capacitors due to stability risks - confirming full compatibility with standard MLCCs.
What is the function of the RESET pin on the MAX8530ETTJO?
The RESET pin on the MAX8530ETTJO is an open-drain, active-low output that monitors OUT1 voltage. It asserts low when OUT1 falls below 84–89% of its nominal value and remains low for ≥100ms after OUT1 recovers to 87% - providing a reliable, integrated power-on reset signal without external components.
Is the MAX8530ETTJO pin-compatible with other MAX8530 variants?
Yes, all MAX8530 variants in the 6-pin thin QFN package - including MAX8530ETTJO, MAX8530ETTK2, and MAX8530ETTP2 - share identical pinout, footprint, and thermal pad layout (pkg code T633-2), enabling drop-in replacement across output voltage options without PCB redesign.
MAX8530ETTJO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX8530ETTJO FAQ
1.How can I place an order for MAX8530ETTJO through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8530ETTJO 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 MAX8530ETTJO reliable?
The price and inventory of MAX8530ETTJO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8530ETTJO is usually 5 days.
3.What payment methods are accepted for MAX8530ETTJO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8530ETTJO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8530ETTJO?
MAX8530ETTJO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8530ETTJO 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 MAX8530ETTJO?
For technical support, including MAX8530ETTJO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8530ETTJO requirements.
6.How does Aetrix verify that MAX8530ETTJO is sourced from the original manufacturer or authorized distributors?
All MAX8530ETTJO 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 MAX8530ETTJO meets industry standards.
7.What is the process for return or replacement of MAX8530ETTJO?
All MAX8530ETTJO units undergo pre-shipment inspection (PSI). If there is an issue with MAX8530ETTJO, 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 MAX8530ETTJO part is unused and in its original packaging.
Return procedure for MAX8530ETTJO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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