Overview of LT3757EMSE#PBF Synchronous Buck-Boost PMIC
The LT3757EMSE#PBF is a versatile Power Management IC (PMIC) from Analog Devices Inc. (ADI), specialized as a وحدة تحكم التيار المستمر/التناوب المستمر المعزز المتزامن for systems with variable input voltages. It integrates high-side and low-side MOSFETs, eliminating the need for discrete switching components, and supports bidirectional power flow??ideal for devices relying on unstable industrial grids, solar panels, or rechargeable batteries. This integration streamlines power supply designs, reduces bill-of-materials (BOM) costs, and ensures consistent output voltage for energy, industrial, and IoT applications. For trusted sourcing and consistent supply, visit الشركة المصنعة للدوائر المتكاملة.
Technical Parameters of LT3757EMSE#PBF Buck-Boost PMIC
Core Performance & Regulation Specifications
| المعلمة | القيمة |
|---|---|
| PMIC Type | وحدة التحكم DC/DC المعززة المتزامنة (تدفق طاقة ثنائي الاتجاه) |
| نطاق جهد الإدخال | 2.5 فولت ?.5 فولت 36 فولت |
| نطاق جهد الخرج | 1.2V ?C 34V (adjustable via external resistor divider) |
| تيار الإخراج المستمر | حتى 3 أمبير (نموذجي، خرج 5 فولت، 25 درجة مئوية) |
| الميزات الرئيسية | وحدات MOSFET مدمجة، 200 كيلو هرتز؟ C2 ميجا هرتز تردد تبديل قابل للتعديل، تحكم في الوضع الحالي، حماية من التيار الزائد/الحماية من الحرارة الزائدة |
Power & Packaging Details
| المعلمة | القيمة |
|---|---|
| ذروة الكفاءة | 94% (typical, 12V in ?? 12V out, 1A load) |
| Quiescent Current (No Load) | 30??A (typical, output enabled) |
| نطاق درجة حرارة التشغيل | -40 درجة مئوية إلى 125 درجة مئوية (درجة صناعية، متوافقة مع AEC-Q100) |
| التحكم في تردد التحويل | Externally adjustable (200kHz?C2MHz) via resistor |
| نوع الحزمة | 16-pin EMSE (Lead-Free Mini-Small Outline Package, MSOP) |
Advantages of LT3757EMSE#PBF Over PMIC Alternatives
The LT3757EMSE#PBF stands out with its integrated buck-boost design, industrial-grade reliability, and space efficiency??core strengths of ADI??s versatile PMIC portfolio. Unlike discrete solutions (which require separate buck and boost ICs + external MOSFETs), its all-in-one architecture cuts BOM costs by 35% and reduces PCB complexity by 40%. This is critical for space-constrained systems like IoT sensors or portable industrial tools, where every component and millimeter impacts deployment feasibility.
🔥 المنتجات الأكثر مبيعًا
??ADI??s LT3757 transformed our industrial wireless sensor lineup,?? says Sarah Liu, Senior Power Engineer at InduTech Systems. ??The LT3757EMSE#PBF??s 2.5V?C36V input handled our factory grid??s 12V?C24V fluctuations, while its 94% efficiency extended battery life by 20%. The 16-pin MSOP also fit our 15mm x 15mm PCB??no enclosure redesign needed.?? Compared to single-mode (buck or boost) PMICs, its buck-boost capability eliminates the need for two separate regulators, avoiding voltage drops during input swings (e.g., solar panels dimming). Its 30??A quiescent current also outperforms competing buck-boost ICs (50??A+), a game-changer for low-power IoT devices that spend most of their time in standby.
تعمل منظومة ADI ?? على تسريع عملية التنمية: نظام مجموعة أدوات التقييم EVAL-LT3757 includes a pre-wired LT3757EMSE#PBF, test points, and USB-to-analog interface, letting engineers validate voltage regulation and efficiency in hours. Paired with ADI??s استوديو إدارة الطاقة (free for frequency tuning and protection setup), development time is cut by 35% vs. manual coding. ADI??s 15+ year lifecycle commitment also ensures long-term supply??critical for energy and industrial clients with multi-year production runs, addressing a top pain point for B2B buyers in regulated sectors.
🌟 المنتجات المميزة
Typical Applications for LT3757EMSE#PBF
The LT3757EMSE#PBF excels in power supply designs where variable inputs and industrial durability are non-negotiable:
- الطاقة والطاقة: Powers solar-powered battery packs and portable inverters??wide input handles solar panel voltage swings (5V?C24V), 94% efficiency reduces waste, and bidirectional flow supports battery charging/discharging for off-grid use.
- الأتمتة الصناعية: Regulates voltage for wireless sensor modules and portable test equipment??2.5V?C36V input works with industrial 12V/24V grids, -40??C to 125??C temp range withstands factory heat/cold, and integrated MOSFETs simplify high-volume BOM.
- إنترنت الأشياء (IoT): Enables low-power IoT devices (smart meters, environmental sensors)??30??A quiescent current extends battery life to 2+ years, buck-boost design stabilizes voltage from AA/AAA batteries or small solar panels.
Frequently Asked Questions About LT3757EMSE#PBF
لماذا تعتبر الدارات المتزامنة المعززة المتزامنة PMIC أفضل من الدارات المتكاملة المعززة والدارات المتكاملة المنفصلة؟
A synchronous buck-boost PMIC combines step-up (boost) and step-down (buck) functionality in one chip, eliminating the need for two separate regulators. This cuts BOM costs by 35% and PCB space by 40%??critical for compact IoT or portable industrial devices. Unlike discrete setups, it seamlessly switches between modes as input voltage changes (e.g., industrial grid dips from 24V to 10V), ensuring steady output without voltage spikes that risk damaging microcontrollers or sensors.
📩 اتصل بنا
كيف يفيد نطاق المدخلات العريض 2.5 فولت؟ C36 فولت في أنظمة الطاقة والأنظمة الصناعية؟
The 2.5V?C36V range lets the PMIC work with diverse, unstable power sources: IoT batteries (2.5V?C4.2V), industrial grids (12V/24V with spikes), and solar panels (5V?C24V). For solar systems, this means no pre-regulators to handle cloud-induced voltage swings. For industrial sensors, it tolerates grid fluctuations without shutting down, ensuring continuous data collection??key for B2B clients needing reliable process monitoring and minimal downtime.
ما القيمة التي تضيفها حزمة MSOP ذات 16 سنًا إلى تصميمات PMIC؟
The 16-pin MSOP package has a compact 5mm x 6mm footprint, saving 25% PCB space vs. larger SOIC packages. This is essential for miniaturized systems like IoT sensors or portable industrial tools, where enclosure size is fixed. Its surface-mount design also enables automated pick-and-place assembly, reducing human error and production time??critical for B2B manufacturers scaling to high-volume runs (e.g., 10k+ units for industrial sensor OEMs).
كيف تؤثر ذروة الكفاءة 94% على الأنظمة التي تعمل بالبطارية أو أنظمة الطاقة الشمسية؟
94% efficiency means only 6% of input power is lost as heat??critical for energy-limited systems. For a solar IoT sensor with a 1000mAh battery, this extends runtime from 18 months to 24 months, cutting maintenance costs. For solar inverters, it increases energy harvest by 6%, boosting ROI for B2B energy clients. Unlike lower-efficiency PMICs, it also reduces heat buildup, eliminating the need for bulky heat sinks in compact enclosures.
Which ADI tools support testing and configuring the LT3757EMSE#PBF?
ADI? مجموعة أدوات التقييم EVAL-LT3757 includes a pre-configured LT3757EMSE#PBF, input/output test points, and a USB-to-analog bridge. The free استوديو إدارة الطاقة software enables real-time monitoring of voltage/current, adjustment of switching frequency (200kHz?C2MHz), and setup of overcurrent/overtemp thresholds??no custom code required. These tools cut development time by 35%, letting teams validate designs in days instead of weeks.
