Datasheet Linear Technology LTC3115-2

Manufacturer	Linear Technology
Series	LTC3115-2

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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Prices

Packaging

	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
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	5x4 DFN-16 Package Outline Drawing	5x4 DFN-16 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	5x4 DFN-16 Package Outline Drawing	5x4 DFN-16 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing	TSSOP-20 Package Outline Drawing
Package Code	DHD	DHD	FE	FE	FE	FE	DHD	DHD	FE	FE	FE	FE
Package Index	05-08-1707	05-08-1707	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1707	05-08-1707	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1663 (CA)
Pin Count	16	16	20	20	20	20	16	16	20	20	20	20

Parametrics

Parameters / Models	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
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A	DC2119A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
Features	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode
Frequency, kHz	2000	2000	2000	2000	2000	2000	2000	2000	2000	2000	2000	2000
Frequency Adjust Range	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz
Frequency Sync Range	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz	Up to 2MHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	3	3	3	3	3	3	3	3	3	3	3	3
Isupply, mA	0.050	0.050	0.050	0.050	0.050	0.050	0.050	0.050	0.050	0.050	0.050	0.050
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Output Current, A	2	2	2	2	2	2	2	2	2	2	2	2
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no
Synchronous	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Topology	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost
Vin Max, V	40	40	40	40	40	40	40	40	40	40	40	40
Vin Min, V	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7
Vout Max, V	40	40	40	40	40	40	40	40	40	40	40	40
Vout Maximum	40V	40V	40V	40V	40V	40V	40V	40V	40V	40V	40V	40V
Vout Min, V	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7

Eco Plan

	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
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	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