Datasheet Linear Technology LTC3867 — 数据表
| 制造商 | Linear Technology |
| 系列 | LTC3867 |
具有差分遥感和非线性控制的同步降压DC / DC控制器
数据表
Datasheet LTC3867
PDF, 394 Kb, 语言: en, 文件上传: Sep 24, 2017, 页数: 36
Synchronous Step-Down DC/DC Controller with Differential Remote Sense and Nonlinear Control
Synchronous Step-Down DC/DC Controller with Differential Remote Sense and Nonlinear Control
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| LTC3867EUF#PBF | LTC3867EUF#TRPBF | LTC3867IUF#PBF | LTC3867IUF#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | 4x4 QFN-24 包装外形图 | 4x4 QFN-24 包装外形图 | 4x4 QFN-24 包装外形图 | 4x4 QFN-24 包装外形图 |
| Package Code | UF | UF | UF | UF |
| Package Index | 05-08-1697 | 05-08-1697 | 05-08-1697 | 05-08-1697 |
| Pin Count | 24 | 24 | 24 | 24 |
参数化
| Parameters / Models | LTC3867EUF#PBF | LTC3867EUF#TRPBF | LTC3867IUF#PBF | LTC3867IUF#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1771A,DC1928A | DC1771A,DC1928A | DC1771A,DC1928A | DC1771A,DC1928A |
| Design Tools | LTspice Model,LTpowerCAD File | LTspice Model,LTpowerCAD File | LTspice Model,LTpowerCAD File | LTspice Model,LTpowerCAD File |
| Export Control | no | no | no | no |
| Features | External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Nonlinear Control | External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Nonlinear Control | External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Nonlinear Control | External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Nonlinear Control |
| Frequency, kHz | 1200 | 1200 | 1200 | 1200 |
| Frequency Adjust Range | 200kHz - 1.2MHz | 200kHz - 1.2MHz | 200kHz - 1.2MHz | 200kHz - 1.2MHz |
| Frequency Sync Range | 200kHz - 1.2MHz | 200kHz - 1.2MHz | 200kHz - 1.2MHz | 200kHz - 1.2MHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 30 | 30 | 30 | 30 |
| Isupply, mA | 3.5 | 3.5 | 3.5 | 3.5 |
| Max Phases | 1 | 1 | 1 | 1 |
| Monolithic | no | no | no | no |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 25 | 25 | 25 | 25 |
| Polyphase | no | no | no | no |
| Sense Resistor | Rsense, DCR | Rsense, DCR | Rsense, DCR | Rsense, DCR |
| Switch Current, A | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck |
| Vin Max, V | 38 | 38 | 38 | 38 |
| Vin Min, V | 4 | 4 | 4 | 4 |
| Vout Max, V | 14 | 14 | 14 | 14 |
| Vout Maximum | 14V | 14V | 14V | 14V |
| Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 |
生态计划
| LTC3867EUF#PBF | LTC3867EUF#TRPBF | LTC3867IUF#PBF | LTC3867IUF#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
模型线
系列: LTC3867 (4)
制造商分类
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | External Power Switch Buck Controllers