Integrated Circuits (ICs)

LTC3895HFE#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS 150V L IQ, SYNC BUCK DC/DC CNTR

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Integrated Circuits (ICs)

LTC3895HFE#PBF

Active

Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS 150V L IQ, SYNC BUCK DC/DC CNTR

Deep-Dive with AI

DocumentsDatasheet R526 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3895HFE#PBF

Clock Sync	False
Control Features	Current Limit, Frequency Control, Soft Start, Power Good, Phase Control, Enable
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	0.173 ", 4.4 mm, 31 Leads
Package / Case	38-TFSOP, Exposed Pad
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	Operating Temperature [Min]	Operating Temperature [Max]	Output Phases	Package / Case	Package / Case	Output Type	Number of Outputs	Control Features	Supplier Device Package	Output Configuration	Mounting Type	Topology	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Function	Frequency - Switching [Max]	Frequency - Switching [Min]	Duty Cycle (Max) [Max]
Analog Devices Inc./Maxim Integrated LTC3895HFE#TRPBF	-40 °C	150 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %
Analog Devices Inc./Maxim Integrated LTC3895IFE#PBF	-40 C	125 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %
Analog Devices Inc./Maxim Integrated LTC3895HFE	-40 °C	150 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %
Analog Devices Inc./Maxim Integrated LTC3895EFE#PBF	-40 C	125 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %
Analog Devices Inc./Maxim Integrated LTC3895HFE#PBF	-40 °C	150 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %
Analog Devices Inc./Maxim Integrated LTC3895IFE#TRPBF	-40 C	125 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %
Analog Devices Inc./Maxim Integrated LTC3895EFE#TRPBF	-40 C	125 °C	1	0.173 " 4.4 mm 31 Leads	38-TFSOP Exposed Pad	Transistor Driver	1	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	38-TSSOP-EP	Positive	Surface Mount	Buck	4 V	140 V	Step-Down	900 kHz	50 kHz	100 %

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	647	$ 15.68	1m+
	Tube	1	$ 16.72	1m+
		10	$ 12.01
		25	$ 10.80
		100	$ 9.45
		250	$ 8.79
		500	$ 8.40
		1000	$ 8.34
Mouser	N/A	1	$ 14.57	1m+
		10	$ 11.21
		25	$ 11.20
		50	$ 9.55
		100	$ 9.02
		250	$ 8.85
		500	$ 8.74
		1000	$ 8.65

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