Analog Devices LTC3891HUDC#TRPBF DC DC Switching Controllers
Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-QFN (3x4)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LTC3891HUDC#TRPBF
Detailed Description
IC REG CTRLR BUCK 20QFN
Package
20-WFQFN Exposed Pad
Key Features
Package / Case: 20-WFQFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
LTC3891HUDC#TRPBF Datasheet
Quick Jump:
Technical Specifications
Analog Devices LTC3891HUDC#TRPBF DC DC Switching Controllers technical specifications.
General
Package / Case
20-WFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C (TJ)
Supply Voltage
4V ~ 60V
Lifecycle Status
Active
Output Type
Transistor Driver
Switching Frequency
105kHz ~ 835kHz, 350kHz ~ 535kHz
Number of Outputs
1
Topology
Buck
Control Features
Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Alternate Parts Comparison (LTC3891HUDC#TRPBF vs LTC3833EUDC#TRPBF vs LTC7800IUDC#PBF vs LTC3835EUFD#TRPBF)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) |
| Supply Voltage | 4V ~ 60V | 4.5V ~ 38V | 4V ~ 60V | 4V ~ 36V |
| Switching Frequency | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 200kHz ~ 2MHz | 320kHz ~ 2.25MHz | 250kHz ~ 530kHz |
| Clock Sync | No | No | No | No |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | Enable, Frequency Control, Power Good, Soft Start, Tracking | Current Limit, Power Good, Soft Start, Tracking | Enable, Phase Control, Power Good, Soft Start, Tracking |
| Function | Step-Down | Step-Down | Step-Down | Step-Down |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Phases | 1 | 1 | 1 | 1 |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Action |
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