LTC3834EFE#PBF

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Analog Devices

30ΜA IQSYNCHRONOUS STEP-DOWN CONTROLLER

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LTC3834EFE#PBF

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Analog Devices

30ΜA IQSYNCHRONOUS STEP-DOWN CONTROLLER

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DocumentsDatasheet R384 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3834EFE#PBF

Clock Sync	False
Control Features	Phase Control, Enable, Tracking, Power Good, Soft Start
Duty Cycle (Max) [Max]	99.4 %
Frequency - Switching [Max]	530 kHz
Frequency - Switching [Min]	250 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case [custom]	4.4 mm, 0.173 in
Package / Case [custom]	Exposed Pad
Package / Case [custom]	20-TSSOP
Supplier Device Package	20-TSSOP-EP
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	36 V
Voltage - Supply (Vcc/Vdd) [Min]	4 V

LTC3834-1 Series

30μA IQSynchronous Step-Down Controller

Part	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Frequency - Switching [Min]	Frequency - Switching [Max]	Output Configuration	Function	Topology	Supplier Device Package	Duty Cycle (Max) [Max]	Output Phases	Mounting Type	Package / Case [custom]	Package / Case [custom]	Package / Case [custom]	Output Type	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Control Features	Package / Case
Analog Devices LTC3834EFE#PBF	85 °C	-40 °C	1	250 kHz	530 kHz	Positive	Step-Down	Buck	20-TSSOP-EP	99.4 %	1	Surface Mount	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	Transistor Driver	4 V	36 V	Enable Phase Control Power Good Soft Start Tracking
Analog Devices LTC3834EFE#TRPBF	85 °C	-40 °C	1	250 kHz	530 kHz	Positive	Step-Down	Buck	20-TSSOP-EP	99.4 %	1	Surface Mount	0.173 in 4.4 mm	Exposed Pad	20-TSSOP	Transistor Driver	4 V	36 V	Enable Phase Control Power Good Soft Start Tracking
Analog Devices LTC3834IDHC-1#PBF	85 °C	-40 °C	1	250 kHz	530 kHz	Positive	Step-Down	Buck	16-DFN (5x3)	99.4 %	1	Surface Mount				Transistor Driver	4 V	36 V	Enable Soft Start Tracking	16-WFDFN Exposed Pad

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 11.11
		10	$ 7.59
		74	$ 5.83
		148	$ 5.41
		296	$ 5.28

Description

General part information

LTC3834-1 Series

The LTC3834-1 is a high performance step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 650kHz.The 30μA no-load quiescent current extends operating life 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 LTC3834-1 features a precision 0.8V reference . The 4V to 36V input supply range encompasses a wide range of battery chemistries.The TRACK/SS pin ramps the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. An enhanced feature set part (LTC3834) is available.PHASMDEXTVCCPGOODPACKAGESLTC3834YesYesYesFE20/4mm × 5mm QFNLTC3834-1NoNoNoGN16/3mm × 5mm DFNApplicationsAutomotive SystemsTelecom SystemsBattery-Operated Digital DevicesDistributed DC Power Systems