Overview
The LT8365EMSE#PBF is a current mode DC/DC converter produced by Analog Devices Inc. This device is designed to operate with a wide input voltage range of 2.8V to 60V and features a 1.5A, 150V switch. It is notable for its unique single feedback pin architecture, which simplifies the design and reduces the number of external components required. The LT8365 can be configured as a boost, SEPIC, or inverting converter, making it versatile for various power management applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Operating Voltage Range (VIN) | 2.8 | 60 | V | |
| Switch Current | 1.5 | A | ||
| Switch Voltage | 150 | V | ||
| Quiescent Current at Shutdown (VEN/UVLO = 0.2V) | 1 | 2 | 15 | μA |
| Quiescent Current in Sleep Mode (SYNC = 0V) | 9 | 15 | 30 | μA |
| Quiescent Current in Active Mode (SYNC = 0V or INTVCC, BIAS = 0V) | 1200 | 1600 | 1850 | μA |
| BIAS Threshold Rising | 4.4 | V | ||
| BIAS Threshold Falling | 4.0 | V | ||
| Operating Temperature Range | -40 | 150 | °C |
Key Features
- Unique single feedback pin architecture for simplified design and reduced external components.
- Capable of generating positive or negative output voltages.
- Configurable as boost, SEPIC, or inverting converter.
- Low quiescent current in shutdown and sleep modes.
- High switch current and voltage ratings (1.5A, 150V).
- Spread Spectrum Frequency Modulation (SSFM) for low EMI.
- Exposed pad for improved thermal performance.
Applications
The LT8365 is suitable for a variety of power management applications, including:
- Boost converters for increasing voltage levels.
- SEPIC converters for both step-up and step-down voltage regulation.
- Inverting converters for generating negative output voltages.
- Automotive systems, supported by automotive-grade versions with the #W suffix.
- Industrial and medical devices requiring high reliability and low EMI.
Q & A
- What is the input voltage range of the LT8365?
The input voltage range of the LT8365 is 2.8V to 60V. - What types of converters can the LT8365 be configured as?
The LT8365 can be configured as a boost, SEPIC, or inverting converter. - What is the switch current and voltage rating of the LT8365?
The switch current rating is 1.5A, and the switch voltage rating is 150V. - What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode (VEN/UVLO = 0.2V) is typically 2 μA. - Does the LT8365 support automotive applications?
Yes, versions of the LT8365 with the #W suffix are available for automotive applications. - How does the LT8365 manage EMI?
The LT8365 uses Spread Spectrum Frequency Modulation (SSFM) to reduce EMI. - What is the operating temperature range of the LT8365?
The operating temperature range is -40°C to 150°C. - How should the exposed pad of the LT8365 be handled?
The exposed pad should be soldered to a continuous copper ground plane to improve thermal performance. - What are the key benefits of the single feedback pin architecture?
The single feedback pin architecture simplifies the design and reduces the number of external components required. - Can the LT8365 generate negative output voltages?
Yes, the LT8365 can be configured as an inverting converter to generate negative output voltages.
