LTC3895IFE#TRPBF
Active150V LOW IQ, SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER
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LTC3895IFE#TRPBF
Active150V LOW IQ, SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3895IFE#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 |
LTC3895 Series
150V Low IQ, Synchronous Step-Down DC/DC Controller
| Part | Function | Frequency - Switching [Max] | Frequency - Switching [Min] | Clock Sync | Output Type | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Topology | Package / Case [custom] | Package / Case | Package / Case | Package / Case [custom] | Control Features | Synchronous Rectifier | Output Configuration | Output Phases | Number of Outputs | Duty Cycle (Max) [Max] | Supplier Device Package | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices | Step-Down | 900 kHz | 50 kHz | Transistor Driver | Surface Mount | 150 °C | -40 °C | Buck | 0.173 " | 38-TFSOP Exposed Pad | 31 Leads | 4.4 mm | Current Limit Enable Frequency Control Phase Control Power Good Soft Start | Positive | 1 | 1 | 100 % | 38-TSSOP-EP | 140 V | 4 V | ||
Analog Devices | Step-Down | 900 kHz | 50 kHz | Transistor Driver | Surface Mount | 150 °C | -40 °C | Buck | 0.173 " | 38-TFSOP Exposed Pad | 31 Leads | 4.4 mm | Current Limit Enable Frequency Control Phase Control Power Good Soft Start | Positive | 1 | 1 | 100 % | 38-TSSOP-EP | 140 V | 4 V | ||
Analog Devices | Step-Down | 900 kHz | 50 kHz | Transistor Driver | Surface Mount | 125 ¯C | -40 °C | Buck | 0.173 " | 38-TFSOP Exposed Pad | 31 Leads | 4.4 mm | Current Limit Enable Frequency Control Phase Control Power Good Soft Start | Positive | 1 | 1 | 100 % | 38-TSSOP-EP | 140 V | 4 V | ||
 Analog Devices | Step-Down | 900 kHz | 50 kHz | Transistor Driver | Surface Mount | 125 ¯C | -40 °C | Buck | 0.173 " | 38-TFSOP Exposed Pad | 31 Leads | 4.4 mm | Current Limit Enable Frequency Control Phase Control Power Good Soft Start | Positive | 1 | 1 | 100 % | 38-TSSOP-EP | 140 V | 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 | $ 16.01 | |
| 10 | $ 11.46 | |||
| 25 | $ 10.30 | |||
| 100 | $ 8.99 | |||
| 250 | $ 8.36 | |||
| 500 | $ 7.98 | |||
| 1000 | $ 7.89 | |||
| Digi-Reel® | 1 | $ 16.01 | ||
| 10 | $ 11.46 | |||
| 25 | $ 10.30 | |||
| 100 | $ 8.99 | |||
| 250 | $ 8.36 | |||
| 500 | $ 7.98 | |||
| 1000 | $ 7.89 | |||
| Tape & Reel (TR) | 2000 | $ 7.89 | ||
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