Overview
The LTC1624CS8#PBF is a high-efficiency current mode switching regulator controller produced by Analog Devices Inc. This device is designed to drive an external N-channel power MOSFET using a fixed frequency architecture, making it versatile for various DC-DC conversion applications. It supports multiple topologies including boost, step-down, SEPIC, and inverting regulators, making it a robust solution for power management in a wide range of electronic devices.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Supply Voltage (VIN) | 3.5 to 36 | V |
| Output Voltage Range (Step-Down Configuration) | 1.19 to 30 | V |
| Reference Voltage | ±1% 1.19 | V |
| Fixed Frequency | 200kHz | Hz |
| Peak Driver Output Current (< 10 µs) | 2 | A |
| Operating Temperature Range | 0 to 70°C (LTC1624CS), -40 to 85°C (LTC1624IS) | °C |
| Junction Temperature | 125 | °C |
| Package Type | 8-Lead SO |
Key Features
- Drives an external N-channel power MOSFET using a fixed frequency architecture.
- Supports boost, step-down, SEPIC, and inverting regulator configurations.
- Wide input voltage range: 3.5V to 36V.
- Wide output voltage range: 1.19V to 30V in step-down configuration.
- ±1% 1.19V reference voltage.
- Low dropout operation with 95% duty cycle.
- Low standby current.
- Very high efficiency.
- Remote output voltage sense.
- Logic-controlled micropower shutdown.
- Internal diode for bootstrapped gate drive.
- Current mode operation for excellent line and load transient response.
Applications
- Notebook and palmtop computers.
- PDAs.
- Cellular telephones and wireless modems.
- Battery-operated digital devices.
- DC power distribution systems.
- Battery chargers.
Q & A
- What is the LTC1624CS8#PBF used for? The LTC1624CS8#PBF is a current mode switching regulator controller used for driving an external N-channel power MOSFET in various DC-DC conversion applications.
- What are the supported topologies by the LTC1624? The LTC1624 supports boost, step-down, SEPIC, and inverting regulator configurations.
- What is the input voltage range of the LTC1624? The input voltage range is from 3.5V to 36V.
- What is the output voltage range in step-down configuration? The output voltage range in step-down configuration is from 1.19V to 30V.
- What is the fixed frequency of the LTC1624? The fixed frequency is 200kHz.
- What are the operating temperature ranges for the LTC1624CS and LTC1624IS? The operating temperature range for LTC1624CS is 0 to 70°C, and for LTC1624IS, it is -40 to 85°C.
- What is the junction temperature of the LTC1624? The junction temperature is 125°C.
- What package type is the LTC1624 available in? The LTC1624 is available in an 8-Lead SO package.
- Does the LTC1624 support remote output voltage sense? Yes, the LTC1624 supports remote output voltage sense.
- How does the LTC1624 handle shutdown? The LTC1624 has logic-controlled micropower shutdown.
