Overview
The LTC3769EUF#PBF is a high-performance single-output synchronous boost converter controller produced by Analog Devices Inc. This device is designed to drive an all N-channel power MOSFET stage, enhancing efficiency and reducing power losses and thermal requirements. It is particularly suited for high-power boost applications across various industries, including industrial, automotive, medical, and military sectors.
Key Specifications
| Parameter | Specification |
|---|---|
| Input Voltage Range | 4.5V to 60V (65V Abs Max); Operates down to 2.3V after start-up |
| Output Voltage | Up to 60V |
| Reference Voltage | ±1% 1.200V |
| Current Sensing | RSENSE or Inductor DCR |
| Duty Cycle Capability | 100% Duty Cycle for Synchronous MOSFET |
| Quiescent Current | 28μA |
| Operating Frequency | Programmable Fixed Frequency (50kHz to 900kHz); Phase-Lockable Frequency (75kHz to 850kHz) |
| Shutdown Current | 4µA |
| Package | 24-Pin 4mm × 4mm QFN, 20-Lead TSSOP |
| Operating Temperature Range | –40°C to 125°C (I Grade), –40°C to 150°C (H Grade) |
Key Features
- Synchronous operation for highest efficiency and reduced heat dissipation
- Wide input voltage range and high output voltage capability
- Low quiescent current for extended battery life in battery-powered systems
- Programmable fixed frequency and phase-lockable frequency
- Power Good output voltage monitor
- Internal LDO powers gate drive from VBIAS or EXTVCC
- Thermally enhanced low profile packages
- AEC-Q100 qualified for automotive applications
Applications
The LTC3769EUF#PBF is versatile and can be used in a variety of applications, including:
- Industrial power systems
- Automotive systems (AEC-Q100 qualified)
- Medical devices
- Military equipment
- Battery-powered systems requiring high efficiency and long battery life
Q & A
- What is the input voltage range of the LTC3769EUF#PBF?
The input voltage range is 4.5V to 60V (65V Abs Max), and it can operate down to 2.3V after start-up.
- What is the maximum output voltage of the LTC3769EUF#PBF?
The maximum output voltage is up to 60V.
- What are the current sensing options for the LTC3769EUF#PBF?
The device supports RSENSE or Inductor DCR current sensing.
- What is the quiescent current of the LTC3769EUF#PBF?
The quiescent current is 28μA.
- Can the operating frequency of the LTC3769EUF#PBF be programmed?
- What is the shutdown current of the LTC3769EUF#PBF?
The shutdown current is 4µA.
- What packages are available for the LTC3769EUF#PBF?
The device is available in 24-Pin 4mm × 4mm QFN and 20-Lead TSSOP packages.
- Is the LTC3769EUF#PBF qualified for automotive applications?
- What are the typical applications of the LTC3769EUF#PBF?
Typical applications include industrial power systems, automotive systems, medical devices, and military equipment.
- How does the LTC3769EUF#PBF enhance efficiency in boost applications?
The device enhances efficiency through synchronous operation, which reduces power losses and eases thermal requirements.
