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LTC7801IFE#TRPBF
+BOMIC REG CTRLR SYNC BUCK 24TSSOP
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メーカーテキサス・インスツルメンツ
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メーカー品番 #LTC7801IFE#TRPBF
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データシート LTC7801IFE#TRPBF DataSheet
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パッケージ TSSOP-24
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在庫状況1744
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 4V ~ 140V |
| Frequency-Switching | 50kHz ~ 900kHz |
| DutyCycle(Max) | 100% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Current Limit, Power Good, Soft Start, Tracking |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 24-TSSOP (0.173, 4.40mm Width) Exposed Pad |
概要
Description
Key features of the LTC7801IFE#TRPBF include its ability to operate at high frequencies up to 2.25MHz, which allows for smaller external components and a more compact design. It also offers programmable output voltage, adjustable operating frequency, and a phased-locked loop (PLL) for frequency synchronization. Additionally, the controller includes safety features such as overvoltage and overcurrent protection, as well as thermal shutdown to ensure reliability under varying conditions.
The LTC7801IFE#TRPBF comes in a thermally enhanced 28-lead TSSOP package, designed to operate efficiently in challenging environments.
Equivalent
1. Texas Instruments: LM5118, LM25118
2. Analog Devices: ADP2441
3. Maxim Integrated: MAX17502, MAX15062
4. ON Semiconductor: NCP1034, NCP81239
These alternatives offer similar functionalities with varied specifications. It's important to verify compatibility based on your specific application requirements.
Features
1. Wide Input Voltage Range: It supports a broad input voltage range from 4.5V to 60V, making it suitable for a variety of applications.
2. Output Voltage: It can regulate output voltages from 0.8V to 99% of VIN.
3. High Efficiency: With synchronous rectification, it provides high efficiency, reaching up to 95% under certain conditions.
4. Adjustable Frequency: The switching frequency is programmable from 100kHz to 3MHz, allowing for flexibility in operation and optimization for efficiency or size.
5. Phase-Lock Loop (PLL) Synchronization: It includes PLL for frequency synchronization to an external clock.
6. Current-Mode Control: The controller utilizes peak current-mode control for fast transient response and ease of loop compensation.
7. Integrated Features: Includes features such as soft-start, tracking, and current limit protection.
8. Thermal Performance: Available in thermally enhanced packages, which help in managing heat dissipation.
These features make the LTC7801IFE#TRPBF suitable for applications in automotive, industrial, and distributed power systems.
Pinout
The pin count for the LTC7801IFE#TRPBF is 28 pins. Key functions of these pins include:
- VIN: Input voltage supply.
- VOUT: Output voltage feedback.
- SW: Switch node for the inductor.
- TG: Top gate drive for the high-side MOSFET.
- BG: Bottom gate drive for the low-side MOSFET.
- SENSE+/-: Differential sense inputs for current limit.
- VCC: Internal regulator output.
- SS: Soft-start control.
- RUN: Enable pin to start the regulator.
- SYNC/MODE: Synchronization and mode selection.
- COMP: Compensation pin for the error amplifier.
These pins work together to control and optimize the regulation process, ensuring efficient power conversion with minimal external components.
Manufacturer
Application
1. Automotive Systems: Used in automotive power supplies for systems like infotainment, navigation, and advanced driver-assistance systems (ADAS).
2. Industrial Equipment: Supports industrial automation and control systems requiring efficient power conversion.
3. Telecommunications: Applied in power supplies for telecom equipment, providing stable power under varying conditions.
4. Computing and Servers: Utilized in motherboards and server power supplies to regulate power efficiently.
5. Consumer Electronics: Powers devices like set-top boxes and gaming consoles, ensuring reliable voltage regulation.
These applications benefit from the LTC7801IFE#TRPBF's high efficiency, wide input voltage range, and robust thermal performance.