Datasheet Linear Technology LT8645S
| Manufacturer | Linear Technology |
| Series | LT8645S |
65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current
Datasheets
Datasheet LT8645S, LT8646S
PDF, 457 Kb, Language: en, File uploaded: Mar 27, 2018, Pages: 30
65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current
65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current
Extract from the document
Prices
Packaging
| LT8645SEV#PBF | LT8645SIV#PBF | |
|---|---|---|
| N | 1 | 2 |
| Package | 6mm × 4mm × 0.94mm LQFN Package Outline Drawing | 6mm × 4mm × 0.94mm LQFN Package Outline Drawing |
| Package Code | LQFN | LQFN |
| Package Index | 05-08-1512 | 05-08-1512 |
| Pin Count | 32 | 32 |
Parametrics
| Parameters / Models | LT8645SEV#PBF | LT8645SIV#PBF |
|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC2468A | DC2468A |
| Design Tools | LTspice Model | LTspice Model |
| Export Control | no | no |
| Features | Low EMI, Silent Switcher 2 Architecture, Internal Bypass Caps, Resistor Set Frequency, External Synchronization, Burst Mode, Tracking, Power Good | Low EMI, Silent Switcher 2 Architecture, Internal Bypass Caps, Resistor Set Frequency, External Synchronization, Burst Mode, Tracking, Power Good |
| Frequency, kHz | 2200 | 2200 |
| Frequency Adjust Range | 200kHz to 2.2MHz | 200kHz to 2.2MHz |
| Frequency Sync Range | 200kHz to 2.2MHz | 200kHz to 2.2MHz |
| Integrated Inductor | no | no |
| Ishutdown, µA | 0.75 | 0.75 |
| Isupply, mA | 0.0017 | 0.0017 |
| Max Phases | 1 | 1 |
| Monolithic | yes | yes |
| Number of Outputs | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | -40 to 85 |
| Output Current, A | 8 | 8 |
| Polyphase | no | no |
| Switch Current, A | 14 | 14 |
| Synchronous | yes | yes |
| Topology | Buck | Buck |
| Topology 1 | Buck | Buck |
| Vin Max, V | 65 | 65 |
| Vin Min, V | 3.4 | 3.4 |
| Vin Min Startup, V | 3.4 | 3.4 |
| Vout Max, V | 64.35 | 64.35 |
| Vout Maximum | 0.99Vin | 0.99Vin |
| Vout Min, V | 0.97 | 0.97 |
| Vref Accuracy Over Temp, % | 0.6 | 0.6 |
Eco Plan
| LT8645SEV#PBF | LT8645SIV#PBF | |
|---|---|---|
| RoHS | Compliant | Compliant |
Other Options
Model Line
Series: LT8645S (2)
Manufacturer's Classification
- Power Management > Switching Regulator > Ultralow Noise Regulators
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
