Overview
The LT8652SIV#PBF is a dual step-down regulator produced by Analog Devices Inc. This component is part of the LT8652S series and is designed to deliver high efficiency and low electromagnetic interference (EMI) in various power management applications. The LT8652SIV#PBF can supply up to 8.5A of continuous current from each of its two channels, with the capability to support loads up to 12A from each channel. It features Analog Devices' second-generation Silent Switcher technology, which includes integrated bypass capacitors to minimize radiated EMI and ensure high-frequency, high-efficiency operation.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Minimum Input Voltage (VIN) | 2.6 - 3.0 | V |
| Maximum Input Voltage (VIN) | 18 | V |
| Output Current per Channel | 8.5 | A |
| Maximum Output Current per Channel | 12 | A |
| Quiescent Current in Shutdown | 6 - 15 | µA |
| Quiescent Current in Sleep with Internal Compensation | 16 - 30 | µA |
| Operating Temperature Range | -40 to 125 | °C |
| Switching Frequency | Up to 2 MHz | |
| Package Type | 36-Lead LQFN (4mm × 7mm × 0.94mm) | |
| RoHS Compliance | Yes |
Key Features
- Silent Switcher Technology: Reduces radiated EMI and ensures high-frequency, high-efficiency operation.
- High Efficiency: Achieves up to 93.6% efficiency at 6A, 3.3VOUT from 12VIN at 1MHz.
- Low Quiescent Current: 16µA in regulating mode and as low as 6µA in shutdown mode.
- Output Ripple: Less than 10mV peak-to-peak.
- Output Voltage Regulation: ±1.2% 600mV feedback voltage with remote sense.
- Output Current Monitoring and Limiting: Allows for accurate current monitoring and limiting.
- Forced Continuous Mode: Ensures the output is valid across the entire load range.
- Spread Spectrum Frequency Modulation: Reduces EMI by spreading the switching frequency.
- CLKOUT for Multi-Phase Operation: Supports up to 4-phase operation for higher current requirements.
Applications
- Server Power Applications: Ideal for high-current server power supplies due to its high efficiency and low EMI.
- General Purpose Step-Down Applications: Suitable for a wide range of applications requiring dual-channel step-down conversion.
- Noise Sensitive Applications: Such as PLLs and high bandwidth data and communications systems, where low EMI and high efficiency are crucial.
- Automotive Applications: Versions of this part are available with controlled manufacturing to support automotive reliability requirements.
Q & A
- What is the maximum output current per channel of the LT8652SIV#PBF?
The LT8652SIV#PBF can deliver up to 8.5A of continuous current from each channel, with the capability to support loads up to 12A from each channel.
- What is the input voltage range for the LT8652SIV#PBF?
The input voltage range is from 2.6V to 18V.
- What is the quiescent current in shutdown mode for the LT8652SIV#PBF?
The quiescent current in shutdown mode is between 6µA and 15µA.
- Does the LT8652SIV#PBF support multi-phase operation?
Yes, it supports up to 4-phase operation using the CLKOUT feature.
- What is the operating temperature range of the LT8652SIV#PBF?
The operating temperature range is from -40°C to 125°C.
- Is the LT8652SIV#PBF RoHS compliant?
Yes, the LT8652SIV#PBF is RoHS compliant.
- What is the package type of the LT8652SIV#PBF?
The package type is a 36-Lead LQFN (4mm × 7mm × 0.94mm).
- What are some typical applications for the LT8652SIV#PBF?
Typical applications include server power supplies, general purpose step-down applications, noise-sensitive applications, and automotive applications.
- How does the Silent Switcher technology benefit the LT8652SIV#PBF?
The Silent Switcher technology reduces radiated EMI and ensures high-frequency, high-efficiency operation.
- What is the efficiency of the LT8652SIV#PBF at 6A, 3.3VOUT from 12VIN at 1MHz?
The efficiency is up to 93.6% at 6A, 3.3VOUT from 12VIN at 1MHz.
