Images for reference only
EDA ModelsEasyEDA
ADI LT8640IUDCF#TRPBF
| Manufacturer | |
| MPN | LT8640IUDCF#TRPBF |
| LCSC Part # | C674119 |
| Packaging | QFN-18(3x4) |
| Customer # | |
| Key Attributes | 2MHz Step-down type Adjustable 5A 970mV~42V QFN-18(3x4) Voltage Regulators - DC DC Switching Regulators RoHS |
| Datasheet | ADI LT8640IUDCF#TRPBF |
| RoHS Compliance | 1 documents available |
| Alternative Parts | 10 |
Products Specifications
All
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-18(3x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 2MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Adjustable soft-start;Output voltage tracking;Frequency synchronization;EMI optimization (spread spectrum);Light load efficient mode;Operating status indication | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 3.4V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 5A | |
| Output Voltage | 970mV~42V | |
| Quiescent Current | 2.5uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-18(3x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 2MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Adjustable soft-start;Output voltage tracking;Frequency synchronization;EMI optimization (spread spectrum);Light load efficient mode;Operating status indication |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 3.4V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 5A | |
| Output Voltage | 970mV~42V | |
| Quiescent Current | 2.5uA |
Help & FeedbackShow similar products (0) >
Introduction
AI Translation
The LT8640/LT8640-1 step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at frequencies up to 3MHz. An ultralow 2.5µA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents. The LT8640/LT8640-1 allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch on-time of 30ns. The SYNC/MODE pin selects between Burst Mode operation, spread spectrum mode, synchronization to an external clock, and either pulse-skipping (LT8640) or forced continuous mode (LT8640-1).
Features
AI Translation
- Silent Switcher Architecture
- Ultralow EMI Emissions Spread Spectrum Frequency Modulation
- High Efficiency at High Frequency: Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT; Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT
- Wide Input Voltage Range: 3.4V to 42V
- 5A Maximum Continuous Output, 7A Peak Transient Output
- Ultralow Quiescent Current Burst Mode Operation
- 2.5µA I0 Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P
- Fast Minimum Switch On-Time: 30ns
- Low Dropout Under All Conditions: 100mV at 1A
- Forced Continuous Mode (LT8640-1 Only)
- Safely Tolerates Inductor Saturation in Overload
- Adjustable and Synchronizable: 200kHz to 3MHz
- Peak Current Mode Operation
- Output Soft-Start and Tracking
- Small 18-Lead 3mm × 4mm QFN and Side Wettable QFN
- AEC-Q100 Qualified for Automotive Applications
Applications
AI Translation
- Automotive and Industrial Supplies
- General Purpose Step-Down
- GSM Power Supplies
Out of Stock
Notify Me
Minimum: 1Multiple: 1Sales Unit: Piece
Add to BOM List
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 5.2434 | $ 5.24 |
| 10+ | $ 4.5142 | $ 45.14 |
| 30+ | $ 4.0686 | $ 122.06 |
| 100+ | $ 3.6971 | $ 369.71 |
Standard Packaging2500/Full Reel | ||
Better price for more quantity?
$
Products Specifications
All
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-18(3x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 2MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Adjustable soft-start;Output voltage tracking;Frequency synchronization;EMI optimization (spread spectrum);Light load efficient mode;Operating status indication | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 3.4V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 5A | |
| Output Voltage | 970mV~42V | |
| Quiescent Current | 2.5uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | QFN-18(3x4) | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Frequency - Switching | 2MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Adjustable soft-start;Output voltage tracking;Frequency synchronization;EMI optimization (spread spectrum);Light load efficient mode;Operating status indication |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 3.4V~42V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 5A | |
| Output Voltage | 970mV~42V | |
| Quiescent Current | 2.5uA |
Help & FeedbackShow similar products (0) >
Introduction
AI Translation
The LT8640/LT8640-1 step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at frequencies up to 3MHz. An ultralow 2.5µA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents. The LT8640/LT8640-1 allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch on-time of 30ns. The SYNC/MODE pin selects between Burst Mode operation, spread spectrum mode, synchronization to an external clock, and either pulse-skipping (LT8640) or forced continuous mode (LT8640-1).
Features
AI Translation
- Silent Switcher Architecture
- Ultralow EMI Emissions Spread Spectrum Frequency Modulation
- High Efficiency at High Frequency: Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT; Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT
- Wide Input Voltage Range: 3.4V to 42V
- 5A Maximum Continuous Output, 7A Peak Transient Output
- Ultralow Quiescent Current Burst Mode Operation
- 2.5µA I0 Regulating 12VIN to 3.3VOUT Output Ripple < 10mVP-P
- Fast Minimum Switch On-Time: 30ns
- Low Dropout Under All Conditions: 100mV at 1A
- Forced Continuous Mode (LT8640-1 Only)
- Safely Tolerates Inductor Saturation in Overload
- Adjustable and Synchronizable: 200kHz to 3MHz
- Peak Current Mode Operation
- Output Soft-Start and Tracking
- Small 18-Lead 3mm × 4mm QFN and Side Wettable QFN
- AEC-Q100 Qualified for Automotive Applications
Applications
AI Translation
- Automotive and Industrial Supplies
- General Purpose Step-Down
- GSM Power Supplies
C674119 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| LT8640EUDC#PBF | ADI | QFN-18(3x4) | 15 | $ 8.3809 | ||
| LT8640IUDC-1#TRPBF | ADI | QFN-18(3x4) | 2 | $ 10.4604 | ||
| LT8614EUDC#PBF | ADI | QFN-18(3x4) | 38 | $ 13.8693 | ||
| LT8614HUDC#TRPBF | ADI | QFN-18(3x4) | 2 | $ 8.5821 | ||
| LT8640EUDC-1#TRPBF | ADI | QFN-18(3x4) | 0 | $ 8.123 | ||
| LT8640EUDCF#TRPBF | ADI | QFN-18(3x4) | 0 | $ 5.3729 | ||
| LT8640IUDCF#PBF | ADI | QFN-18(3x4) | 0 | $ 5.2434 | ||
| LT8640IUDCF-1#TRPBF | ADI | QFN-18(3x4) | 0 | $ 5.4376 | ||
| LT8640JUDCF#PBF | ADI | QFN-18(3x4) | 0 | $ 11.2298 | ||
| LT8640HUDC#TRPBF | ADI | QFN-18(3x4) | 0 | $ 8.3018 |