Datasheet Linear Technology LT3845A — 数据表
| 制造商 | Linear Technology |
| 系列 | LT3845A |
可调工作频率的高压同步电流模式降压控制器
数据表
Datasheet LT3845A
PDF, 295 Kb, 语言: en, 文件上传: Sep 19, 2017, 页数: 26
High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency
High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency
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| LT3845AEFE#PBF | LT3845AEFE#TRPBF | LT3845AIFE#PBF | LT3845AIFE#TRPBF | LT3845AMPFE#PBF | LT3845AMPFE#TRPBF | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Package | TSSOP-16 包装外形图 | TSSOP-16 包装外形图 | TSSOP-16 包装外形图 | TSSOP-16 包装外形图 | TSSOP-16 包装外形图 | TSSOP-16 包装外形图 |
| Package Code | FE | FE | FE | FE | FE | FE |
| Package Index | 05-08-1663 (BC) | 05-08-1663 (BC) | 05-08-1663 (BC) | 05-08-1663 (BC) | 05-08-1663 (BC) | 05-08-1663 (BC) |
| Pin Count | 16 | 16 | 16 | 16 | 16 | 16 |
参数化
| Parameters / Models | LT3845AEFE#PBF | LT3845AEFE#TRPBF | LT3845AIFE#PBF | LT3845AIFE#TRPBF | LT3845AMPFE#PBF | LT3845AMPFE#TRPBF |
|---|---|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1619A | DC1619A | DC1619A | DC1619A | DC1619A | DC1619A |
| Design Tools | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model | LTspice File,LTpowerCAD Model |
| Export Control | no | no | no | no | no | no |
| Features | Resistor Set Frequency, External Synchronization, Burst Mode | Resistor Set Frequency, External Synchronization, Burst Mode | Resistor Set Frequency, External Synchronization, Burst Mode | Resistor Set Frequency, External Synchronization, Burst Mode | Resistor Set Frequency, External Synchronization, Burst Mode | Resistor Set Frequency, External Synchronization, Burst Mode |
| Frequency, kHz | 500 | 500 | 500 | 500 | 500 | 500 |
| Frequency Adjust Range | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz |
| Frequency Sync Range | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz | 100kHz - 500kHz |
| Integrated Inductor | no | no | no | no | no | no |
| Ishutdown, µA | 20 | 20 | 20 | 20 | 20 | 20 |
| Isupply, mA | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 |
| Max Phases | 2 | 2 | 2 | 2 | 2 | 2 |
| Monolithic | no | no | no | no | no | no |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 | -55 to 125 | -55 to 125 |
| Output Current, A | 15 | 15 | 15 | 15 | 15 | 15 |
| Polyphase | yes | yes | yes | yes | yes | yes |
| Sense Resistor | Rsense | Rsense | Rsense | Rsense | Rsense | Rsense |
| Switch Current, A | 15 | 15 | 15 | 15 | 15 | 15 |
| Synchronous | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 60 | 60 | 60 | 60 | 60 | 60 |
| Vin Min, V | 4 | 4 | 4 | 4 | 4 | 4 |
| Vout Max, V | 36 | 36 | 36 | 36 | 36 | 36 |
| Vout Maximum | 36V | 36V | 36V | 36V | 36V | 36V |
| Vout Min, V | 1.231 | 1.231 | 1.231 | 1.231 | 1.231 | 1.231 |
| Vref Accuracy Over Temp, % | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
生态计划
| LT3845AEFE#PBF | LT3845AEFE#TRPBF | LT3845AIFE#PBF | LT3845AIFE#TRPBF | LT3845AMPFE#PBF | LT3845AMPFE#TRPBF | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
模型线
系列: LT3845A (6)
制造商分类
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | External Power Switch Buck Controllers
- Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators