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 synchronous buck-boost DC/DC controller 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 IC 제조업체.
Technical Parameters of LT3757EMSE#PBF Buck-Boost PMIC
Core Performance & Regulation Specifications
| 매개변수 | 가치 |
|---|---|
| PMIC Type | Synchronous buck-boost DC/DC controller (bidirectional power flow) |
| 입력 전압 범위 | 2.5V ?C 36V |
| 출력 전압 범위 | 1.2V ?C 34V (adjustable via external resistor divider) |
| Continuous Output Current | Up to 3A (typical, 5V output, 25??C) |
| 주요 기능 | Integrated MOSFETs, 200kHz?C2MHz adjustable switching freq, current mode control, overcurrent/overtemperature protection |
전원 및 패키징 세부 정보
| 매개변수 | 가치 |
|---|---|
| 최고 효율성 | 94% (typical, 12V in ?? 12V out, 1A load) |
| Quiescent Current (No Load) | 30??A (typical, output enabled) |
| 작동 온도 범위 | -40??C to 125??C (industrial grade, AEC-Q100 compliant) |
| Switching Frequency Control | Externally adjustable (200kHz?C2MHz) via resistor |
| 패키지 유형 | 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.
베스트셀러 제품
??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.
ADI??s ecosystem accelerates development: the EVAL-LT3757 Evaluation Kit 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 Power Management Studio (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.
🌟 주요 제품
Typical Applications for LT3757EMSE#PBF
The LT3757EMSE#PBF excels in power supply designs where variable inputs and industrial durability are non-negotiable:
- Energy and Power: 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.
- 산업 자동화: 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.
- 사물 인터넷(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
Why is a synchronous buck-boost PMIC better than separate buck and boost ICs?
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.
📩 문의하기
How does the 2.5V?C36V wide input range benefit energy and industrial systems?
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.
What value does the 16-pin MSOP package add to PMIC designs?
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).
How does 94% peak efficiency impact battery-powered or solar systems?
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??s EVAL-LT3757 Evaluation Kit includes a pre-configured LT3757EMSE#PBF, input/output test points, and a USB-to-analog bridge. The free Power Management Studio 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.
