LTC3895HFE

Obsolete

Analog Devices

IC POWER MANAGEMENT

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LTC3895HFE

Obsolete

Analog Devices

IC POWER MANAGEMENT

Deep-Dive with AI

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3895HFE

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]	150 °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]	Output Type	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Package / Case [custom]	Package / Case	Package / Case	Package / Case [custom]	Control Features	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 LTC3895HFE	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 LTC3895HFE#PBF	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 LTC3895IFE#TRPBF	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 LTC3895EFE#TRPBF	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	$

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

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