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LTC3789EGN#TRPBF
+NomenclatureIC REG CTRLR BUCK-BOOST 28SSOP
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LTC3789EGN#TRPBF
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Fiche technique LTC3789EGN#TRPBF DataSheet
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Package SSOP-28
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En stock1233
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Number of Outputs | 2 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 38V |
| Frequency - Switching | 200kHz ~ 640kHz |
| Duty Cycle(Max) | 90% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features include high efficiency (up to 98%), wide input voltage range (4V to 38V), and output voltage range (0.8V to 38V). The LTC3789 utilizes a constant frequency, current mode control architecture, ensuring fast transient response and easy loop compensation. It operates with a programmable switching frequency from 200kHz to 700kHz, allowing for optimization between efficiency and component size.
The chip also integrates protections such as overcurrent, overvoltage, and thermal shutdown, enhancing reliability. The LTC3789EGN#TRPBF comes in a thermally-enhanced 16-lead TSSOP package, making it suitable for compact designs where space and thermal management are critical.
Equivalent
Features
Key features include:
- Synchronous rectification, which improves efficiency by reducing power loss.
- Constant-frequency current mode control for consistent performance.
- Adjustable operating frequency from 50kHz to 900kHz, allowing for design flexibility.
- Programmable soft-start to minimize inrush current during startup.
- High efficiency over a wide load range, ideal for battery-powered devices.
- Burst Mode® operation to improve efficiency at light loads by reducing switching losses.
- Built-in protection features, such as overvoltage lockout, overcurrent protection, and thermal shutdown, enhancing reliability.
The chip is available in a 16-lead SSOP package and supports a wide temperature range, making it versatile for different environments.