ADI LT8697HUDD#PBF
| Manufacturer | |
| MPN | LT8697HUDD#PBF |
| LCSC Part # | C674158 |
| Packaging | QFN-24(3x5) |
| Customer # | |
| Key Attributes | 300kHz~2.2MHz Step-down type 2.1A Adjustable 5V~42V QFN-24(3x5) Special Purpose Regulators RoHS |
| Datasheet |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-24(3x5) | |
| Synchronous Rectifier | Yes | |
| Frequency - Switching | 300kHz~2.2MHz | |
| Features | Adjustable current limiting;Cable compensation;Frequency synchronization;Operating status indication | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Output Voltage | 5V~5.25V | |
| Output Current | 2.1A | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Quiescent Current | 9mA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 5V~42V | |
| Operating Temperature | -40℃~+150℃ |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-24(3x5) | |
| Synchronous Rectifier | Yes | |
| Frequency - Switching | 300kHz~2.2MHz | |
| Features | Adjustable current limiting;Cable compensation;Frequency synchronization;Operating status indication | |
| Function | Step-down type | |
| Number of Outputs | 1 |
| Type | Description | |
|---|---|---|
| Output Voltage | 5V~5.25V | |
| Output Current | 2.1A | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Quiescent Current | 9mA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 5V~42V | |
| Operating Temperature | -40℃~+150℃ |
Introduction
The LT8697 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator designed to power 5V USB applications. A precise output voltage and programmable cable drop compensation maintain accurate 5V regulation at the USB socket connected to the end of a long cable. Forced continuous operation allows the LT8697 to sink current, further enhancing accurate 5V regulation during load transients. Accurate and programmable output current limit, a power good indicator pin and an output current monitor pin improve system reliability and safety, allow the user to implement latch-off or auto-retry functionality and can eliminate the need for a USB switch IC. Dual feedback allows regulation on the output of a USB switch and limits cable drop compensation to a maximum of 5.8V output, protecting USB devices during fault conditions. Thermal shutdown provides additional protection by limiting power dissipation in the IC during an overtemperature fault. The LT8697 is available in a small 24−1620 3mm×5mm package with an exposed pad for low thermal resistance.
Features
- Wide Input Range: 5V to 42V
- Low Dropout Under All Conditions: 450mV at 2.1A
- Accurate 5V Output: ±1.3% Over Full Temperature Range
- Programmable Cable Drop Compensation
- Programmable Output Current Limit
- Output Current Monitor
- Dual Input Feedback Permits Regulation on Output of USB Switch
- Forced Continuous Mode for Fast Load Step Response
- High Efficiency Synchronous Operation at 2MHz: 93% Efficiency at 2.1A, 5VOUT from 12VIN 95% Efficiency at 0.9A, 5VOUT from 12VIN
- Fast Minimum Switch-On Time: 45ns
- Adjustable Output from 5.0V to 5.25V
- Adjustable and Synchronizable: 300kHz to 2.2MHz
- Small Thermally Enhanced 3mm×5mm 24 - Lead QFN Package
Applications
- Automotive and Industrial USB Precision 5V Supply
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 5.4994 | $ 5.50 |
| 200+ | $ 2.1285 | $ 425.70 |
| 500+ | $ 2.0544 | $ 1027.20 |
| 1,000+ | $ 2.0174 | $ 2017.40 |
Standard Packaging73/Full Tube | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-24(3x5) | |
| Synchronous Rectifier | Yes | |
| Frequency - Switching | 300kHz~2.2MHz | |
| Features | Adjustable current limiting;Cable compensation;Frequency synchronization;Operating status indication | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Output Voltage | 5V~5.25V | |
| Output Current | 2.1A | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Quiescent Current | 9mA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 5V~42V | |
| Operating Temperature | -40℃~+150℃ |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-24(3x5) | |
| Synchronous Rectifier | Yes | |
| Frequency - Switching | 300kHz~2.2MHz | |
| Features | Adjustable current limiting;Cable compensation;Frequency synchronization;Operating status indication | |
| Function | Step-down type | |
| Number of Outputs | 1 |
| Type | Description | |
|---|---|---|
| Output Voltage | 5V~5.25V | |
| Output Current | 2.1A | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Quiescent Current | 9mA | |
| Switch tube (built-in/external) | External | |
| Voltage - Supply | 5V~42V | |
| Operating Temperature | -40℃~+150℃ |
Introduction
The LT8697 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator designed to power 5V USB applications. A precise output voltage and programmable cable drop compensation maintain accurate 5V regulation at the USB socket connected to the end of a long cable. Forced continuous operation allows the LT8697 to sink current, further enhancing accurate 5V regulation during load transients. Accurate and programmable output current limit, a power good indicator pin and an output current monitor pin improve system reliability and safety, allow the user to implement latch-off or auto-retry functionality and can eliminate the need for a USB switch IC. Dual feedback allows regulation on the output of a USB switch and limits cable drop compensation to a maximum of 5.8V output, protecting USB devices during fault conditions. Thermal shutdown provides additional protection by limiting power dissipation in the IC during an overtemperature fault. The LT8697 is available in a small 24−1620 3mm×5mm package with an exposed pad for low thermal resistance.
Features
- Wide Input Range: 5V to 42V
- Low Dropout Under All Conditions: 450mV at 2.1A
- Accurate 5V Output: ±1.3% Over Full Temperature Range
- Programmable Cable Drop Compensation
- Programmable Output Current Limit
- Output Current Monitor
- Dual Input Feedback Permits Regulation on Output of USB Switch
- Forced Continuous Mode for Fast Load Step Response
- High Efficiency Synchronous Operation at 2MHz: 93% Efficiency at 2.1A, 5VOUT from 12VIN 95% Efficiency at 0.9A, 5VOUT from 12VIN
- Fast Minimum Switch-On Time: 45ns
- Adjustable Output from 5.0V to 5.25V
- Adjustable and Synchronizable: 300kHz to 2.2MHz
- Small Thermally Enhanced 3mm×5mm 24 - Lead QFN Package
Applications
- Automotive and Industrial USB Precision 5V Supply
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |

