Analog Devices LTC3859AHFE DC DC Switching Controllers
Buck, Buck-Boost, SEPIC Regulator Positive Output Step-Down, Step-Up/Step-Down DC-DC Controller IC 38-TSSOP-EP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LTC3859AHFE
Detailed Description
IC POWER MANAGEMENT
Package
38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Key Features
Package / Case: 38-TFSOP (0.173", 4.40mm Width) Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
LTC3859AHFE Datasheet
Quick Jump:
Technical Specifications
Analog Devices LTC3859AHFE DC DC Switching Controllers technical specifications.
General
Package / Case
38-TFSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C (TJ)
Supply Voltage
4.5V ~ 38V
Lifecycle Status
Obsolete
Output Type
Transistor Driver
Switching Frequency
115kHz ~ 835kHz, 350kHz ~ 535kHz
Number of Outputs
3
Topology
Buck, Buck-Boost, SEPIC
Control Features
Enable, Frequency Control, Power Good, Soft Start, Tracking
Alternate Parts Comparison (LTC3859AHFE vs LTC3897EFE#PBF vs LTC3859ALHFE#TRPBF vs LTC3859ALEFE#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 | 38-TFSOP | 38-TFSOP | 38-TFSOP | 38-TFSOP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) |
| Supply Voltage | 4.5V ~ 38V | 4.5V ~ 65V | 4.5V ~ 38V | 4.5V ~ 38V |
| Switching Frequency | 115kHz ~ 835kHz, 350kHz ~ 535kHz | 75kHz ~ 850kHz | 115kHz ~ 835kHz, 350kHz ~ 535kHz | 115kHz ~ 835kHz, 350kHz ~ 535kHz |
| Clock Sync | No | Yes | No | No |
| Control Features | Enable, Frequency Control, Power Good, Soft Start, Tracking | Current Limit, Frequency Control, Overcurrent, Ramping | Enable, Frequency Control, Power Good, Soft Start, Tracking | Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Function | Step-Down, Step-Up/Step-Down | Step-Up | Step-Down, Step-Up/Step-Down | Step-Down, Step-Up/Step-Down |
| Number of Outputs | 3 | 2 | 3 | 3 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Phases | 2 | 2 | 2 | 2 |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Action |
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