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Analog Devices Inc./Maxim Integrated MAX8530ETTJO-T
- Part No.:
- MAX8530ETTJO-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX8530ETTJO-T.pdf
- Description:
- DUAL LOW-DROPOUT LINEAR REGULATO
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX8530ETTJO-T from Maxim Integrated is a dual low-dropout linear regulator IC with integrated microprocessor reset circuit, delivering 200mA on OUT1 and 150mA on OUT2 from 2.5V–6.5V input. It features 100mV typical dropout at 100mA, 130µA quiescent current (both LDOs active), and open-drain active-low RESET output with 100ms minimum timeout-designed for space-constrained battery-powered baseband and core voltage regulation in handheld instruments and wireless LAN cards.
For engineers reviewing the MAX8530ETTJO-T datasheet, MAX8530ETTJO-T pinout, MAX8530ETTJO-T application, or MAX8530ETTJO-T equivalent, key selection criteria include guaranteed dual-output current capability, UCSP package footprint (1.16 × 1.57 mm), reset threshold accuracy (87% nominal OUT1), thermal shutdown behavior (160°C trip), and compatibility with ceramic output capacitors ≥2.2µF.
Technical Context
The MAX8530ETTJO-T integrates two independent P-channel MOSFET-based LDO regulators sharing a single 1.25V bandgap reference and error amplifiers. Its reset block monitors OUT1 voltage exclusively, asserting RESET when falling below 87% of nominal output and holding it low for ≥100ms after rising above threshold.
Shutdown control is logic-level compatible (VIH = 1.6V min, VIL = 0.4V max) and reduces supply current to <1µA. Thermal protection activates at TJ = +160°C with 10°C hysteresis, and current limiting ensures OUT1 sustains ≥210mA and OUT2 ≥165mA before foldback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 6.5V - supports single-cell Li-ion (fully charged) and multi-cell alkaline inputs without external pre-regulation. |
| OUT1 Output Current | Guaranteed 200mA - sufficient for baseband processor core rails in cellular handsets and PDAs. |
| OUT2 Output Current | Guaranteed 150mA - suitable for I/O or memory interface supplies in compact portable devices. |
| Dropout Voltage | 100mV (typ) at 100mA load - enables operation down to VIN = VOUT + 0.1V, extending battery runtime near end-of-life. |
| Quiescent Current | 130µA (both LDOs active) - minimizes standby power loss in always-on subsystems like real-time clocks or sensors. |
| RESET Threshold | 87% of nominal OUT1 voltage (min 84%, max 89%) - provides precise undervoltage detection for reliable microprocessor boot sequencing. |
| Thermal Shutdown | 160°C junction temperature with 10°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
MAX8530ETTJO-T is packaged in a 6-bump UCSP (1.16 × 1.57 × 0.6 mm) with bottom-side solder bumps. The package uses a 3×2 grid layout and requires reflow-compatible PCB pad design per Maxim's UCSP guidelines (document 21-0097G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT2 | Regulator 2 output terminal | Delivers up to 150mA; requires ≥1µF ceramic output capacitor for stability under full load. |
| IN | Main input supply connection | Accepts 2.5V–6.5V; must be decoupled with ≥2.2µF ceramic capacitor close to pin. |
| OUT1 | Regulator 1 output terminal | Delivers up to 200mA; requires ≥2.2µF ceramic output capacitor for full-temperature/load stability. |
| GND | Ground reference and thermal path | Serves as primary ground return and heat sink; must connect to large PCB copper area for thermal dissipation. |
| SHDN | Logic-controlled shutdown input | Active-high; drives low to reduce IQ to <1µA; VIH ≥1.6V, VIL ≤0.4V, bias current <0.8nA at +85°C. |
| RESET | Open-drain active-low reset output | Asserted when OUT1 falls below 87% nominal; minimum 100ms timeout; VOL ≤40mV at 100µA sink. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDO regulation | Enables simultaneous generation of VCORE (e.g., 2.85V) and VI/O (e.g., 2.6V) from single input, eliminating need for discrete regulators. |
| Integrated microprocessor reset | Monitors only OUT1 and eliminates external RC timing network, reducing BOM count and board area in portable designs. |
| P-channel MOSFET pass transistors | Delivers ultra-low quiescent current (130µA) independent of load or dropout condition-critical for battery longevity. |
| Thermal and short-circuit protection | Allows indefinite output shorting and automatic recovery from thermal overload without external circuitry or system intervention. |
| UCSP and QFN packaging options | 1.16 × 1.57 mm UCSP footprint saves >50% board area vs. comparable SOT-23 solutions while maintaining thermal performance via GND bump conduction. |
Applications
| Cellular Baseband Power | Wireless LAN Module Supply |
|---|---|
|
Use Scenario: Regulating VCORE and VI/O rails for Qualcomm MSM or Broadcom BCM baseband processors in smartphones. IC Role / Device Role / Timing Role: Dual-output LDO providing tightly regulated, low-noise power with synchronized reset assertion during brownout. Use Value: Eliminates need for external reset supervisor and reduces total solution size by integrating both regulators and reset in sub-2mm² UCSP. |
Use Scenario: Powering IEEE 802.11a/b/g RF transceivers and MAC controllers on mini-PCI or M.2 WLAN modules. IC Role / Device Role / Timing Role: Supplies stable 2.85V core and 2.6V I/O voltages while ensuring clean reset signaling during battery voltage sag. Use Value: 100mV dropout extends usable battery range; 130µA quiescent current preserves standby time in sleep-mode beacon intervals. |
| Hand-Held Test Instrument | PCMCIA Card Power Management |
|
Use Scenario: Providing precision analog and digital supply rails for portable multimeters or oscilloscope front-ends. IC Role / Device Role / Timing Role: Delivers low-drift, low-noise outputs for ADC references and microcontroller cores with fault-aware reset signaling. Use Value: Guaranteed ±3% output accuracy over -40°C to +85°C ensures measurement repeatability across environmental conditions. |
Use Scenario: Managing power sequencing and voltage translation for legacy PCMCIA Type II cards in industrial laptops. IC Role / Device Role / Timing Role: Generates 3.3V and 5V-equivalent (via internal divider) rails with coordinated reset to meet PCMCIA 2.1 power-up timing requirements. Use Value: Open-drain RESET output interfaces directly with card controller's nRESET input without level-shifting components. |
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-T | Same die, UCSP package (1.16 × 1.57 mm) vs. MAX8530ETTJO-T's QFN (3 × 3 mm); identical electrical specs and pinout. | Better suited for ultra-compact layouts where board area is constrained more than thermal budget. | Select MAX8530EBTJO-T when minimizing footprint is critical and thermal dissipation can be managed via PCB copper. |
| TPS79533-EP | Single-output 3.3V LDO (500mA), no integrated reset; requires external supervisor (e.g., TPS3808) for reset functionality. | Lacks dual-output capability and built-in reset-adds component count and board area versus MAX8530ETTJO-T's integrated solution. | Choose only if single-rail 3.3V supply suffices and external reset timing flexibility is preferred over integration. |
Compared with MAX8530EBTJO-T, the MAX8530ETTJO-T offers superior thermal performance in high-power-density designs due to its exposed-pad QFN package, while the TPS79533-EP demands additional components to replicate basic reset functionality-making MAX8530ETTJO-T optimal for space- and BOM-sensitive dual-rail systems.
Availability
MAX8530ETTJO-T is available at Aetrix Electronics and suitable for cellular baseband power, wireless LAN module supply, hand-held test instrument regulation, and PCMCIA card power management requiring stable component supply across extended temperature ranges (-40°C to +85°C).
Supply support for MAX8530ETTJO-T 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 industrial, automotive, and portable electronics.
The MAX8530/MAX8531 product line was designed specifically for ultra-compact, battery-powered applications demanding dual regulated outputs and intelligent power-on reset in minimal PCB area.
FAQ
What output voltages does the MAX8530ETTJO-T support?
The MAX8530ETTJO-T is a factory-configured variant with fixed output voltages: OUT1 = 2.85V and OUT2 = 2.6V, as indicated by the "JO" suffix in the top-mark code "ACA". These values are laser-trimmed during production and not adjustable externally. The device supports other combinations between 1.5V and 3.3V in 50mV increments, but only the JO version is represented by this specific part number.
Does the MAX8530ETTJO-T require external components for stable operation?
Yes-the MAX8530ETTJO-T requires a minimum 2.2µF ceramic capacitor on OUT1 and 1µF on OUT2 for stability across -40°C to +85°C. An input capacitor of ≥2.2µF is also mandatory. X7R or X5R dielectrics are recommended; Z5U/Y5V types require ≥4.7µF to ensure stability below -10°C. No external reset timing components are needed-the 100ms minimum timeout is internal.
How does the RESET function behave during shutdown?
During shutdown (SHDN = low), the MAX8530ETTJO-T asserts RESET low regardless of OUT1 voltage. RESET remains low until SHDN returns high and OUT1 rises to ≥87% of its nominal value, after which the internal timer begins counting. The RESET signal then goes high ≥100ms later-ensuring clean processor initialization even after forced shutdown cycles.
Can the MAX8530ETTJO-T be used with input voltages below 2.5V?
No-the absolute minimum input voltage for functional regulation is 2.5V, per the Absolute Maximum Ratings and Electrical Characteristics tables. Input below 2.5V triggers undervoltage lockout (VUVLO = 2.25V typ), disabling regulation and forcing RESET low. Operation below specification risks unregulated output, excessive dropout, or failure to assert reset correctly.
What is the thermal performance difference between UCSP and QFN packages for the MAX8530ETTJO-T?
The MAX8530ETTJO-T uses the 3mm × 3mm thin QFN with exposed pad, offering significantly better thermal resistance than UCSP: θJA ≈ 120°C/W (QFN) vs. ~200°C/W (UCSP). This allows higher continuous output power-up to 1951mW (QFN) versus 308mW (UCSP)-making the QFN version preferable for applications with sustained 150–200mA loads and limited airflow.
MAX8530ETTJO-T 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-T FAQ
1.How can I place an order for MAX8530ETTJO-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8530ETTJO-T 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-T reliable?
The price and inventory of MAX8530ETTJO-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8530ETTJO-T is usually 5 days.
3.What payment methods are accepted for MAX8530ETTJO-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8530ETTJO-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8530ETTJO-T?
MAX8530ETTJO-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8530ETTJO-T 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-T?
For technical support, including MAX8530ETTJO-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8530ETTJO-T requirements.
6.How does Aetrix verify that MAX8530ETTJO-T is sourced from the original manufacturer or authorized distributors?
All MAX8530ETTJO-T 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-T meets industry standards.
7.What is the process for return or replacement of MAX8530ETTJO-T?
All MAX8530ETTJO-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8530ETTJO-T, 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-T part is unused and in its original packaging.
Return procedure for MAX8530ETTJO-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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