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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) - Power Management - Specialized > MAX1579ETG+T
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MAX1579ETG+T

In Stock 13650 pcs Reference Price(In US Dollars)
1+
$6.7888
200+
$2.6269
500+
$2.5353
1000+
$2.4895
Manufacturer Part Number:
MAX1579ETG+T
Manufacturer / Brand
Analog Devices Inc./Maxim Integrated
Part of Description:
IC PS BIAS/WHITE LED TFT 24-TQFN
Datasheets:
MAX1579ETG+T(1).pdfMAX1579ETG+T(2).pdfMAX1579ETG+T(3).pdfMAX1579ETG+T(4).pdfMAX1579ETG+T(5).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 13650 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MAX1579ETG+T
Manufacturer / Brand Analog Devices Inc./Maxim Integrated
Stock Quantity 13650 pcs Stock
Category Integrated Circuits (ICs) > Power Management (PMIC) - Power Management - Specialized
Description IC PS BIAS/WHITE LED TFT 24-TQFN
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ MAX1579ETG+T Datasheets MAX1579ETG+T Details PDF
MAX1579ETG+T Details PDF for FR.pdf
MAX1579ETG+T Details PDF for KR.pdf
MAX1579ETG+T Details PDF for IT.pdf
MAX1579ETG+T Details PDF for DE.pdf
MAX1579ETG+T Details PDF for ES.pdf
Voltage - Supply 2.7V ~ 5.5V
Supplier Device Package 24-TQFN (4x4)
Series -
Package / Case 24-WFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Current - Supply 3mA
Base Product Number MAX1579
Applications LCD Display

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

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Shipping Fees reference DHL/FedEx
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2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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MAX1579ETG+T Product Details:

The MAX1579ETG+T is a highly integrated power management integrated circuit (PMIC) designed for LCD display applications. Manufactured by Maxim Integrated, this PMIC is part of the Integrated Circuits (ICs) product category, specifically classified as a PMIC - Power Management - Specialized device.

The MAX1579ETG+T addresses the design challenges of powering and managing the various components in an LCD display system. It features a compact 24-TQFN (4x4) package with a QFN-24 encapsulation, making it suitable for space-constrained applications. The device operates over a wide temperature range of -40°C to 85°C, ensuring reliable performance in diverse environmental conditions.

Key specifications of the MAX1579ETG+T include a supply voltage range of 2.7V to 5.5V and a typical supply current of 3mA. It is RoHS-compliant and lead-free, making it environmentally friendly. The PMIC is packaged in a Tape & Reel (TR) format, which facilitates efficient automated assembly processes.

The primary advantages of the MAX1579ETG+T lie in its comprehensive power management capabilities for LCD displays. It integrates various functions, such as power supply control, charge pump, and backlight driver, allowing for a streamlined and efficient design. This integration helps reduce the overall component count, simplifying circuit design and improving system reliability.

The MAX1579ETG+T is widely compatible with a variety of LCD display applications, making it a versatile solution. It is well-suited for use in a range of electronic devices that incorporate LCD displays, such as industrial equipment, medical devices, consumer electronics, and more.

Regarding equivalent or alternative models, the MAX1579ETG+T does not have direct equivalents from Maxim Integrated. However, there are similar PMIC solutions available from other manufacturers that may serve as alternatives, such as the Texas Instruments TPS65132 and the Analog Devices ADP5072. These devices may offer comparable features and functionality, catering to similar LCD display power management requirements.

MAX1579ETG+T Key Technical Attributes

Manufacturer Part Number MAX1579ETG+T

Manufacturer Maxim Integrated

Package / Case 24-WFQFN Exposed Pad

MAX1579ETG+T Packing Size

Packaging Tape & Reel (TR)

Supplier Device Package 24-TQFN (4x4)

Mounting Type Surface Mount

Thermal Characteristics Moisture Sensitivity Level (MSL) 1 (Unlimited)

MAX1579ETG+T Application

LCD Display

MAX1579ETG+T Features

The MAX1579ETG+T from Maxim Integrated is a specialized Power Management Integrated Circuit designed explicitly for LCD Displays. This PMIC operates efficiently within a voltage supply range of 2.7 V to 5.5 V, while maintaining a low current supply requirement of just 3mA. It is designed in a compact 24-WFQFN (4x4) package that facilitates surface mounting, making it suitable for incorporating into slim and compact device designs. The operational temperature range of this PMIC spans from -40°C to 85°C, ensuring stable performance under various environmental conditions.

MAX1579ETG+T Quality and Safety Features

RoHS Lead-free / RoHS Compliant, ensuring safety and environmental standards are met.

MAX1579ETG+T Compatibility

Designed for seamless integration with LCD display modules requiring precise power management.

MAX1579ETG+T Datasheet PDF

For detailed specifications and comprehensive understanding of the MAX1579ETG+T, customers are encouraged to download the most authoritative datasheet available on our website.

Quality Distributor

IC-Components takes pride in being a premium distributor for Maxim Integrated products including the MAX1579ETG+T. We guarantee not only the authenticity of the products but also provide expert support and detailed product insights. We recommend obtaining a quote directly from our website to ensure the best deal and service.

Frequently Asked Questions

Can the MAX1579ETG+T be used to power a high-resolution TFT LCD in a battery-powered handheld device, and what are the key power sequencing constraints I need to consider during system startup?
Yes, the MAX1579ETG+T is specifically designed for LCD display power in portable applications, including high-resolution TFT panels. However, proper power sequencing is critical—the IC generates both positive and negative bias voltages for the LCD, and incorrect timing relative to the logic supply (VDD) can cause latch-up or damage to the display driver ICs. Ensure that the input voltage (2.7V to 5.5V) is stable before enabling the charge pumps, and avoid applying logic signals to the LCD before the bias rails are fully settled. Use the EN pin with a delay circuit or microcontroller-controlled sequencing to meet these requirements.
What are the thermal implications of using the MAX1579ETG+T in a sealed industrial enclosure with ambient temperatures approaching 80°C, and does the exposed pad require additional thermal management?
The MAX1579ETG+T has an operating temperature range of -40°C to +85°C, making it suitable for industrial environments. However, in a sealed enclosure near the upper limit, junction temperature rise due to power dissipation (especially during high-load LCD biasing) must be evaluated. The 24-TQFN package with an exposed pad is designed for efficient heat transfer—soldering the pad directly to a grounded thermal plane on the PCB is essential. Without adequate copper area (recommended ≥ 4 cm²), thermal resistance increases significantly, potentially triggering thermal shutdown or reducing long-term reliability.
I’m replacing a legacy charge pump solution with the MAX1579ETG+T in an existing LCD backlight driver circuit—what design changes are necessary to ensure compatibility with the new PMIC’s feedback and regulation scheme?
The MAX1579ETG+T uses an internal feedback network and fixed-output architecture for its positive and negative charge pumps, unlike adjustable external feedback designs. You must remove any external resistors tied to feedback pins and ensure the target LCD bias voltages (typically +15V and -10V) match the IC’s fixed outputs. Additionally, verify that the input capacitance (minimum 10µF ceramic) and output capacitors (1µF to 2.2µF low-ESR) meet the datasheet specifications—improper capacitance can cause instability or excessive ripple, affecting display contrast and longevity.
Is the MAX1579ETG+T a drop-in replacement for the Texas Instruments TPS65130 in a 3.3V-powered e-reader display application, and what functional differences should I anticipate?
No, the MAX1579ETG+T is not a direct drop-in replacement for the TPS65130 due to architectural and control differences. While both generate dual LCD bias rails, the TPS65130 supports adjustable output voltages via external resistors and includes an integrated VCOM buffer, whereas the MAX1579ETG+T has fixed outputs and no VCOM driver. Migrating requires redesigning the feedback network (or removing it entirely), verifying voltage compatibility, and potentially adding an external VCOM buffer. Also, the MAX1579ETG+T draws only 3mA quiescent current, offering better efficiency in always-on displays, but lacks the TPS65130’s enable/disable granularity per rail.
How does the MAX1579ETG+T handle input voltage transients or brownout conditions common in automotive or industrial 5V supply rails, and are external protection components required?
The MAX1579ETG+T operates from 2.7V to 5.5V but lacks built-in undervoltage lockout (UVLO) with hysteresis, making it susceptible to erratic behavior during slow ramp-up or brownouts below 2.7V. In noisy or transient-prone environments (e.g., automotive ignition cycles), add a Schottky diode and TVS diode at the input to clamp spikes, and use a bulk capacitor (≥22µF) near the IC to sustain voltage during dips. For critical systems, consider a supervisor IC to disable the MAX1579ETG+T until the input stabilizes above 3.0V to prevent partial activation and display artifacts.
What long-term reliability concerns should I evaluate when deploying the MAX1579ETG+T in a medical device with a 10-year service life and continuous operation?
With MSL 1 (unlimited floor life) and RoHS compliance, the MAX1579ETG+T is suitable for long-life applications. However, assess capacitor aging—electrolytic or high-ESR ceramic caps on the output can degrade over time, increasing ripple and stressing the LCD. Use X5R/X7R ceramics with voltage derating (e.g., 10V-rated caps for 5V rails). Additionally, ensure the PCB layout minimizes loop areas for switching nodes to reduce EMI, which can interfere with sensitive analog circuits in medical equipment. Periodic validation under thermal cycling (-40°C to +85°C) is recommended to confirm solder joint integrity over the product lifecycle.
Can the MAX1579ETG+T support multiple LCD panels in parallel, such as in a dual-screen industrial HMI, and what current limitations apply?
The MAX1579ETG+T is optimized for single-panel LCD bias generation with limited output current capability (typically < 5mA per rail). Driving multiple panels in parallel exceeds its design intent and can lead to voltage droop, overheating, or premature failure. Each additional panel increases capacitive load and leakage current, destabilizing regulation. For multi-panel systems, use one MAX1579ETG+T per display or consider a higher-current PMIC like the MAX1580. If paralleling is unavoidable, add series resistors (10–100Ω) to each output to isolate loads and prevent oscillation, but expect reduced efficiency and potential brightness inconsistency.
What PCB layout practices are critical to minimize switching noise and ensure stable operation of the MAX1579ETG+T in a mixed-signal environment with sensitive ADCs nearby?
The MAX1579ETG+T’s charge pumps operate at high frequency (~1.5MHz), generating switching noise that can couple into adjacent analog circuits. Critical layout practices include: placing input and output capacitors within 2mm of the IC pins, using a solid ground plane under the exposed pad, routing SW and CPOUT traces away from analog signal paths, and avoiding vias in high-di/dt loops. Separate analog and power grounds, connecting them at a single point near the ADC. A guard ring around sensitive traces tied to AGND can further reduce coupling. Poor layout may manifest as ADC code noise or display flicker, even with correct component values.

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