Datasheet Linear Technology LTC3115HFE-2#PBF

Manufacturer	Linear Technology
Series	LTC3115-2
Part Number	LTC3115HFE-2#PBF

40V, 2A Synchronous Buck-Boost DC/DC Converter

Datasheets

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PDF, 788 Kb, Revision: A, File uploaded: Sep 20, 2017

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Packaging

Package	TSSOP-20
Package Code	FE
Package Index	05-08-1663 (CA)

Parametrics

Architecture	Constant Frequency Current Mode
Demo Boards	DC2119A
Design Tools	LTspice Model
Export Control	no
Features	Resistor Set Frequency, External Synchronization, Burst Mode
Frequency	2000 kHz
Frequency Adjust Range	Up to 2MHz
Frequency Sync Range	Up to 2MHz
Integrated Inductor	no
Ishutdown	3 µA
Isupply	0.050 mA
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	-40 to 125 °C
Output Current	2 A
Polyphase	no
Synchronous	yes
Topology	Buck-Boost
Vin Max	40 V
Vin Min	2.7 V
Vout Max	40 V
Vout Maximum	40V
Vout Min	2.7 V

Eco Plan

RoHS

Compliant

Articles

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2.7V to 40V Monolithic Buck-Boost DC/DC Expands Input Capabilities, Regulates Seamlessly through Automotive Cold-Crank and Load-Dump Transients &mdash LT Journal
PDF, 3.9 Mb, File published: Jan 17, 2013
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design features 2.7V to 40V Monolithic Buck-Boost DC/DC Expands
Input Capabilities, Regulates Seamlessly through
Automotive Cold-Crank and Load-Dump Transients
John Canfield Handheld devices, industrial instruments and automotive electronics all demand power
supply solutions that can support an expansive range of input voltages resulting from
automotive input voltage transients, resistive line drops and a wide variety of power
sources. As a further design challenge, applications often require a variety of regulated
voltage rails, including some that fall within the input voltage range. The LTC3115-1
buck-boost DC/DC converter, with its wide 2.7V to 40V input and output voltage
capability, high efficiency, small footprint and seamless transition between step-up and
step-down modes of operation, easily meets the requirements of such applications.
For automotive electronics, the LTC3115-1
provides uninterrupted operation through
load dump transients and even the harshest cold-crank conditions. Its programmable switching frequency optimizes
efficiency and supports operation at 2MHz
to ensure that switching noise and harmonics are located above the AM broadcast
band. The LTC3115-1 employs a proprietary low noise PWM control algorithm
that minimizes electromagnetic emissions over all operating conditions even
during transitions between the step-up
and step-down modes of operation and
over the full range of load current. An
internal phase-locked loop allows switching edges to be synchronized with an
external clock for further control of …

Model Line

Series: LTC3115-2 (12)

LTC3115EDHD-2#PBF LTC3115EDHD-2#TRPBF LTC3115EFE-2#PBF LTC3115EFE-2#TRPBF LTC3115HFE-2#PBF LTC3115HFE-2#TRPBF LTC3115IDHD-2#PBF LTC3115IDHD-2#TRPBF LTC3115IFE-2#PBF LTC3115IFE-2#TRPBF LTC3115MPFE-2#PBF LTC3115MPFE-2#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Buck-Boost Regulators > Internal Power Switch Buck-Boost
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Other Names:

LTC3115HFE-2PBF, LTC3115HFE-2 PBF, LTC3115HFE2#PBF, LTC3115HFE 2#PBF