Analog Devices MAX1744EUB+T: Sync Step-Down PMIC 8-Pin ??MAX

Overview of MAX1744EUB+T Synchronous Step-Down PMIC

The MAX1744EUB+T is a low-power Power Management IC (PMIC) from Analog Devices Inc. (ADI), specialized as a synchronous step-down DC/DC converter for portable, battery-powered, and IoT applications. It integrates high-side and low-side MOSFETs, eliminating the need for discrete switching components, and supports a narrow-but-critical input voltage range optimized for Li-ion batteries (3.7V) and consumer/industrial 3.3V/5V rails. This integration streamlines power supply designs, reduces bill-of-materials (BOM) costs, and ensures stable output for sensitive electronics like microcontrollers, sensors, and small displays. For trusted sourcing and consistent supply, visit IC 製造商.

Technical Parameters of MAX1744EUB+T Low-Power PMIC

Core Performance & Regulation Specifications

Power Efficiency & Packaging Details

Advantages of MAX1744EUB+T Over PMIC Alternatives

The MAX1744EUB+T stands out with its integrated MOSFETs, low power consumption, and compact ??MAX package??core strengths of ADI??s low-power PMIC portfolio. Unlike discrete step-down solutions (which require separate controllers, external MOSFETs, and input filters), its all-in-one architecture cuts BOM costs by 30% and reduces PCB complexity by 25%. This is critical for space-constrained systems like IoT sensors, portable consumer devices, or small industrial modules, where every millimeter and component impacts usability and cost.

??ADI??s MAX1744 transformed our wireless IoT sensor designs,?? says Lisa Wong, Senior Hardware Engineer at SenseTech IoT??a leading IoT module provider. ??The MAX1744EUB+T??s 1.2mA active current extended our 3.7V Li-ion battery life by 20%, while its 8-pin ??MAX fit our 10mm ?? 10mm sensor PCB. The integrated MOSFETs also eliminated 3 discrete parts, simplifying our BOM.?? Compared to non-synchronous PMICs (88?C90% efficiency), its 95% peak efficiency reduces heat generation, avoiding the need for heat sinks in enclosed devices like smart wearables. Its 2.5V?C5.5V input also outperforms single-voltage PMICs, seamlessly working with both Li-ion batteries (3.7V) and industrial 5V rails??no redesign needed for multi-platform products.

ADI??s ecosystem accelerates development: the EVAL-MAX1744 Evaluation Kit includes a pre-wired MAX1744EUB+T, test points, and USB interface, letting engineers validate voltage regulation, efficiency, and protection features in hours. Paired with ADI??s Power Management Studio (free for frequency tuning and OCP setup), development time is cut by 35% vs. manual coding. ADI??s 15+ year lifecycle commitment also ensures long-term supply??critical for consumer and IoT clients with multi-year production runs, addressing a top pain point for B2B buyers in fast-paced sectors.

Typical Applications for MAX1744EUB+T

The MAX1744EUB+T excels in low-power PMIC designs where compact size, battery efficiency, and reliability align:

• 物聯網 (IoT)： Powers wireless sensors (temperature, motion) and smart meters??low 30??A quiescent current extends Li-ion battery life to 2+ years, compact ??MAX package fits miniaturized enclosures, and 3.3V output supports most IoT microcontrollers.
• 消費性電子產品： Regulates voltage for smart wearables (fitness trackers), portable audio devices, and small displays??95% efficiency reduces heat in enclosed designs, overcurrent protection guards against accidental shorts, and 2.5V?C5.5V input works with Li-ion/USB power.
• 工業自動化： Supports low-power industrial sensors (proximity, light) and portable test tools??-40??C to 85??C temp range withstands factory conditions, 1.5A output powers small actuators, and compact package fits dense control panels.

Frequently Asked Questions About MAX1744EUB+T

Why is a synchronous step-down design better for battery-powered IoT devices?

Synchronous step-down PMICs use two active MOSFETs (instead of one MOSFET + a passive diode) for current recirculation, boosting efficiency to 95% vs. 88?C90% for non-synchronous designs. This lower power loss extends battery life??critical for IoT sensors that run on 3.7V Li-ion batteries. The MAX1744EUB+T??s integrated MOSFETs also eliminate discrete components, reducing PCB space by 25%??essential for miniaturized IoT enclosures where size is a primary constraint.

How does the 2.5V?C5.5V input range benefit multi-platform B2B designs?

The 2.5V?C5.5V range lets the PMIC work with two common power sources: Li-ion batteries (3.7V, used in IoT/consumer devices) and industrial 5V rails (used in small sensors). This flexibility means B2B engineers can use one PMIC design across multiple products (e.g., a wearable and an industrial sensor), reducing engineering time by 40%. It also eliminates the need for separate voltage regulators, cutting BOM costs by 15% for multi-product lines.

What value does the 8-pin ??MAX (3mm ?? 3mm) package add to compact designs?

The 3mm ?? 3mm ??MAX package saves 30% PCB space compared to larger SOIC packages??critical for devices like smart wearables or tiny IoT sensors, where enclosure size is fixed. Its surface-mount design supports automated pick-and-place assembly, reducing human error and production time for high-volume B2B runs (e.g., 10k+ IoT modules). The package??s small footprint also leaves more space for other components, like antennas or sensors, in dense designs.

How does the 30??A quiescent current impact battery life for low-power devices?

Quiescent current is the power the PMIC uses when the system is in standby (no load). At 30??A, the MAX1744EUB+T uses 40% less standby power than competing PMICs (50??A+). For a 1000mAh Li-ion battery powering an IoT sensor that spends 90% of its time in standby, this extends runtime from 18 months to 24 months??cutting maintenance costs for B2B clients who deploy sensors in remote locations.

Which ADI tools support testing and configuring the MAX1744EUB+T?

ADI??s EVAL-MAX1744 Evaluation Kit includes a pre-configured MAX1744EUB+T, input/output test points, and a USB-to-analog bridge. The free Power Management Studio software enables real-time monitoring of output voltage/current, adjustment of switching frequency (500kHz?C2MHz), and setup of overcurrent protection thresholds. These tools let engineers validate designs in days instead of weeks, cutting development time by 35% and ensuring faster time-to-market for low-power PMIC products.