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LT3433IFE
+BOMIC REG BCK BST ADJ 500MA 16TSSOP
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Nhà sản xuấtCông ty Analog Devices Inc.
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Ông. Phần #LT3433IFE
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Bảng dữ liệu LT3433IFE DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Obsolete |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 60V |
| Voltage - Output (Min / Fixed) | 3.3V |
| Voltage - Output (Max) | 20V |
| Current - Output | 500mA (Switch) |
| Frequency - Switching | 200kHz |
| Synchronous Rectifier | No |
| Mounting Type | Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 16-TSSOP-EP |
| Base Product Number | LT3433 |
Tổng quan
Description
The LT3433IFE operates with a programmable switching frequency, typically set between 300 kHz and 2.5 MHz, allowing designers to optimize efficiency and minimize component size. Its integrated MOSFETs reduce the need for external components, while built-in features such as current mode control, soft-start, and thermal shutdown enhance reliability and performance.
The device also includes protection features like overcurrent protection and a power good indicator. With its combination of high efficiency, flexible functionality, and robust protection mechanisms, the LT3433IFE is an ideal choice for modern power supply designs where space and efficiency are critical.
Equivalent
Features
1. Input Voltage Range: Operates from 3.6V to 60V, making it suitable for a wide range of power sources.
2. Output Current: Delivers up to 3A of continuous output current.
3. Efficiency: High efficiency (up to 95%) across various load conditions, minimizing heat generation.
4. Output Voltage: Adjustable output voltage from 0.8V to 60V, allowing flexibility for different applications.
5. Integrated MOSFETs: Includes internal power MOSFETs, reducing external component count and improving reliability.
6. Switching Frequency: Operates at a programmable switching frequency, allowing optimization between efficiency and size.
7. Soft-Start: Features a soft-start function to limit inrush current upon startup.
8. Thermal Protection: Integrated thermal shutdown for safety under high-temperature conditions.
9. Compact Package: Available in a thermally enhanced package for improved heat dissipation.
These features make the LT3433IFE ideal for industrial and automotive power supply applications.
Pinout
Key functions of the pins include:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pins 2, 3): Switch node for the power stage.
3. GND (Pin 4): Ground reference.
4. VOUT (Pin 5): Output voltage feedback.
5. COMP (Pin 6): Compensation node for stability.
6. FB (Pin 7): Feedback voltage input for regulation.
7. VREF (Pin 8): Reference voltage output.
8. ISEN (Pin 9): Current sense input.
9. SS (Pin 10): Soft-start input.
10. RUN (Pin 11): Enable pin for on/off control.
11. CSN (Pin 12): Current sense negative input.
12. CSP (Pin 13): Current sense positive input.
13. SLOPE (Pin 14): Slope compensation for stability.
14. PG (Pin 15): Power good output.
15. PGND (Pin 16): Power ground.
These pins work together to provide efficient voltage regulation in various applications.