Datasheet Details
| Part number | LTC3859AL |
|---|---|
| Manufacturer | Linear Technology (now Analog Devices) |
| File Size | 1.18 MB |
| Description | Buck/Buck/Boost Synchronous Controller |
| Download | LTC3859AL Download (PDF) |
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| Part number | LTC3859AL |
|---|---|
| Manufacturer | Linear Technology (now Analog Devices) |
| File Size | 1.18 MB |
| Description | Buck/Buck/Boost Synchronous Controller |
| Download | LTC3859AL Download (PDF) |
|
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n Low Operating IQ: 28μA (One Channel On) n Dual Buck Plus Single Boost Synchronous Controllers n Outputs Remain in Regulation Through Cold Crank Down to 2.5V n Wide Bias Input Voltage Range: 4.5V to 38V n Buck Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n Boost Output Voltage Up to 60V n RSENSE or DCR Current Sensing n 100% Duty Cycle for Boost Synchronous MOSFET Even in Burst Mode® Operation n Phase-Lockable Frequency (75kHz to 850kHz) n Programmable Fixed Frequency (50kHz to 900kHz) n Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode Operation at Light Loads n Very Low Buck Dropout Operation: 99% Duty Cycle n Adjustable Output Voltage Soft-Start or Tracking n Low Shutdown IQ: 10μA n Small 38-Lead 5mm × 7mm QFN and TSSOP Packages APPLICATIONS n Automotive Always-On and Start-Stop Systems n Battery Operated Digital Devices n Distributed DC Power Systems The LTC®3859AL is a high performance triple output (buck/ buck/boost) synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages.
Constant frequency current mode architecture allows a phase-lockable switching frequency of up to 850kHz.
The LTC3859AL operates from a wide 4.5V to 38V input supply range.
LTC3859AL Triple Output, Buck/Buck/Boost Synchronous.
| Part Number | Description |
|---|---|
| LTC3859A | Buck/Buck/Boost Synchronous Controller |
| LTC3859 | Buck/Buck/Boost Synchronous Controller |
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| LTC3850-1 | 2-Phase Synchronous Step-Down Switching Controller |
| LTC3850-2 | 2-Phase Synchronous Step-Down Switching Controller |
| LTC3851 | Synchronous Step-Down Switching Regulator Controller |
| LTC3851-1 | Synchronous Step-Down Switching Regulator Controller |
| LTC3851A | Synchronous Step-Down Switching Regulator Controller |
| LTC3851A-1 | Synchronous Step-Down Switching Regulator Controller |
| LTC3853 | Multiphase Synchronous Step-Down Controller |