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LM3488MM
+BOMLM3488 2.97V TO 40V WIDE VIN LOW
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #LM3488MM
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데이터시트 LM3488MM DataSheet
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패키지 VSSOP (DGK)-8
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재고3523
365 1일 품질 보증
7*24 영업 시간 서비스 보증
90-판매 후 1일 보증
정품 보증
사양
| 속성 | 가치 |
| Package | Bulk |
| ProductStatus | Active |
개요
Description
Key features include a high switching frequency up to 1 MHz, which enables the use of smaller external components, leading to space-efficient designs. The device also provides excellent load and line regulation, contributing to stable output performance. An internal 1.5A N-channel MOSFET driver supports high current outputs, enhancing system efficiency. Additional features like adjustable soft-start, cycle-by-cycle current limiting, and thermal shutdown protection ensure reliable and flexible design options.
Overall, the LM3488MM is a robust solution for designers seeking efficient and compact power supply systems across a broad range of applications.
Equivalent
Features
1. Wide Input Voltage Range: Operates from 2.97V to 40V, making it suitable for a broad array of applications.
2. Current Mode Control: Offers excellent line and load regulation, simplifying loop compensation.
3. Adjustable Switching Frequency: Frequency is programmable from 100 kHz to 1 MHz, allowing optimization for efficiency or size.
4. Cycle-by-Cycle Current Limiting: Protects the device and the circuit during overcurrent conditions.
5. Low Shutdown Current: Features a shutdown mode with a typical current draw of 5 µA.
6. Small Package: Available in an 8-pin VSSOP (MM) package, ideal for space-constrained applications.
7. Thermal Shutdown: Protects the device from overheating by disabling the output when the junction temperature exceeds safe levels.
8. High-Voltage Gate Drive: Compatible with various MOSFETs to drive loads effectively.
Overall, the LM3488MM is designed to provide flexibility and high performance in compact, efficient power supply designs.
Pinout
1. SW (Pin 1): Switch node, connected to the source of the PFET.
2. VCC (Pin 2): Output of the internal LDO and supply voltage for the device.
3. FB (Pin 3): Feedback pin for voltage regulation, connected to the output through a resistor divider.
4. COMP (Pin 4): Compensation pin for loop stability.
5. GND (Pin 5): Ground reference for the IC.
6. ISEN (Pin 6): Current sense input, used to limit the peak current.
7. RON (Pin 7): On-time control pin, sets the on-time for the PFET.
8. FA/SYNC (Pin 8): Frequency adjust (FA) and synchronization input for frequency setting and synchronization to an external clock.
These pins work collectively to regulate output voltage and manage the switching operation efficiently.
Manufacturer
Application
1. Boost Converters: It can step-up voltages for applications requiring higher output than input.
2. SEPIC (Single-Ended Primary Inductor Converter): Useful in applications demanding both step-up and step-down voltage conversion.
3. Flyback Converters: Employed in isolated power supply designs.
4. Backlight Drivers: Used in driving LEDs for display backlighting.
5. Battery-Powered Systems: Enhances battery life by efficient power conversion.
6. Automotive Electronics: Provides stable power in automotive environments.
These applications take advantage of the LM3488MM's high efficiency, flexibility, and wide input voltage range.