LTC3895EFE#TRPBF
Active150V LOW IQ, SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER
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LTC3895EFE#TRPBF
Active150V LOW IQ, SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3895EFE#TRPBF |
|---|---|
| Clock Sync | False |
| Control Features | Enable, Phase Control, Power Good, Soft Start, Current Limit, Frequency Control |
| Duty Cycle (Max) [Max] | 100 % |
| Frequency - Switching [Max] | 900 kHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | Exposed Pad, 38-TFSOP |
| Package / Case | 31 Leads |
| Package / Case [custom] | 0.173 " |
| Package / Case [custom] | 4.4 mm |
| Supplier Device Package | 38-TSSOP-EP |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 140 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 14.60 | |
| 10 | $ 10.39 | |||
| 25 | $ 9.31 | |||
| 100 | $ 8.11 | |||
| 250 | $ 7.52 | |||
| 500 | $ 7.17 | |||
| 1000 | $ 7.01 | |||
| Digi-Reel® | 1 | $ 14.60 | ||
| 10 | $ 10.39 | |||
| 25 | $ 9.31 | |||
| 100 | $ 8.11 | |||
| 250 | $ 7.52 | |||
| 500 | $ 7.17 | |||
| 1000 | $ 7.01 | |||
| Tape & Reel (TR) | 2000 | $ 7.01 | ||
Description
General part information
LTC3895 Series
The LTC3895 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V. A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz.The gate drive voltage can be programmed from 5V to 10V to allow the use of logic or standard-level FETs to maximize efficiency. An integrated switch in the top gate driver eliminates the need for an external bootstrap diode. An internal charge pump allows for 100% duty cycle operation.The low 40μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP®compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3895 features a precision 0.8V reference and power good output indicator. The output voltage can be programmed between 0.8V to 60V using external resistors or pin-programmed for a fixed 5V or 3.3V.ApplicationsAutomotive and Industrial Power SystemsHigh Voltage Battery Operated SystemsTelecommunications Power Systems
Documents
Technical documentation and resources