Overview
The LTC3630IMSE#PBF is a high-efficiency synchronous step-down DC/DC converter produced by Analog Devices Inc. This component is designed to operate with a wide input voltage range of 4V to 65V and can deliver an output current of up to 500mA. The LTC3630 features internal high-side and synchronous power switches, which contribute to its high efficiency and low power consumption. In active mode, the device draws only 12μA of typical DC supply current, and in sleep mode, this current is further reduced, making it suitable for battery-operated devices and other power-sensitive applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage (VIN) | Operating Range | 4 | 65 | V | |
| Output Voltage (VOUT) | Operating Range | 0.8 | VIN | V | |
| Output Current | 500 | mA | |||
| DC Supply Current (IQ) | Active Mode | 12 | μA | ||
| DC Supply Current (IQ) | Sleep Mode | 12 | μA | ||
| Operating Temperature Range | –40°C to 125°C (LTC3630I) | °C | |||
| Operating Temperature Range | –40°C to 150°C (LTC3630H) | °C | |||
| Operating Temperature Range | –55°C to 150°C (LTC3630MP) | °C |
Key Features
- High efficiency synchronous step-down DC/DC converter with internal high-side and synchronous power switches.
- Wide input voltage range of 4V to 65V.
- Output voltage adjustable from 0.8V to VIN.
- Maximum output current of 500mA.
- Low quiescent current: 12μA typical in active mode and sleep mode.
- Burst Mode operation for high efficiency at light loads.
- Dropout operation with 100% duty cycle capability.
- Thermally-enhanced MSE16 and 3mm × 5mm DFN packages.
- Feedback comparator output pin (FBO) for combining output currents of multiple LTC3630s.
Applications
- Industrial control supplies.
- Medical devices.
- Distributed power systems.
- Portable instruments.
- Battery-operated devices.
- Automotive systems.
- Avionics.
Q & A
- What is the input voltage range of the LTC3630IMSE#PBF?
The input voltage range is from 4V to 65V.
- What is the maximum output current of the LTC3630IMSE#PBF?
The maximum output current is 500mA.
- What is the typical DC supply current in active mode?
The typical DC supply current in active mode is 12μA.
- Does the LTC3630IMSE#PBF support Burst Mode operation?
- What are the available package options for the LTC3630IMSE#PBF?
The available package options include thermally-enhanced MSE16 and 3mm × 5mm DFN packages.
- Can the output currents of multiple LTC3630s be combined?
- What are some typical applications of the LTC3630IMSE#PBF?
Typical applications include industrial control supplies, medical devices, distributed power systems, portable instruments, battery-operated devices, automotive systems, and avionics.
- What is the operating temperature range for the LTC3630I version?
The operating temperature range for the LTC3630I version is –40°C to 125°C.
- Does the LTC3630IMSE#PBF support dropout operation?
- How does the LTC3630IMSE#PBF manage power dissipation during dropout operation?
The power dissipation can increase dramatically during dropout operation, especially at input voltages less than 10V, due to higher potential output current and increased P-channel MOSFET on-resistance.
