画像は参考用です
LTC3728EUH#TRPBF
+BOMIC REG CTRLR BUCK 32QFN
-
メーカーテキサス・インスツルメンツ
-
メーカー品番 #LTC3728EUH#TRPBF
-
データシート LTC3728EUH#TRPBF DataSheet
-
在庫状況8727
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 |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 2 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 3.5V ~ 30V |
| Frequency - Switching | 260kHz ~ 550kHz |
| Duty Cycle (Max) | 99.4% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Enable, Power Good, Soft Start |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 32-WFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) |
| Base Product Number | LTC3728 |
概要
Description
Key features include adjustable output voltage, programmable switching frequency, and a built-in soft-start function, which helps prevent inrush current during startup. The LTC3728 also supports features like overvoltage protection (OVP) and undervoltage lockout (UVLO) for enhanced reliability.
The package is a thermally-enhanced MSOP-16, allowing for efficient heat dissipation. Overall, the LTC3728EUH#TRPBF is ideal for applications requiring high efficiency, compact design, and reliable performance in demanding environments.
Equivalent
Features
1. Dual Output: Supports two independent outputs for versatile applications.
2. Synchronous Operation: Enhances efficiency by reducing power loss during switching.
3. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various power sources.
4. Adjustable Output Voltage: Output voltage can be set from 0.8V to 90% of the input voltage, providing flexibility.
5. Current Mode Control: Improves transient response and simplifies compensation.
6. Integrated Drivers: Features built-in high- and low-side gate drivers for easy implementation.
7. Programmable Switching Frequency: Adjustable frequency from 50kHz to 1MHz allows for design optimization.
8. Power Good Indicator: Monitors output voltages for system reliability.
9. Thermal Shutdown and Overcurrent Protection: Ensures safe operation under fault conditions.
These features make the LTC3728EUH#TRPBF suitable for a wide range of applications, including industrial, automotive, and telecom power supplies.
Pinout
The main functions of the pins include:
- Power Input (VIN): Supplies power to the IC.
- Output Voltage Feedback (FB): Used for voltage regulation by connecting to a voltage divider.
- Compensation (COMP): Connects to the compensation network for stability.
- Switch Outputs (SW): Connects to the switching power stage.
- Gate Drivers (TG, BG): Drive the external high-side and low-side MOSFETs.
- Enable (RUN): Turns the controller on/off.
- Soft-Start (SS): Controls the ramp-up time of the output voltage.
- Current Sense (CS+ and CS-): Current sensing inputs for overcurrent protection.
- Mode Selection (MODE): Configures the operation mode (e.g., Burst Mode or Continuous Mode).
The device is designed for high efficiency and is suitable for applications requiring dual outputs with precise voltage regulation.
Manufacturer
Application
1. DC-DC Converters: Used in power supplies for processors, FPGAs, and ASICs.
2. Telecommunications Equipment: Provides stable power for networking hardware.
3. Industrial Automation: Supplies power to sensors and control systems.
4. Consumer Electronics: Powers high-performance devices like laptops and tablets.
5. Automotive Systems: Used in automotive electronics for reliable voltage regulation.
Overall, it serves in applications requiring efficient, high-current power conversion and regulation.