Datasheet Linear Technology LTC3112

Manufacturer	Linear Technology
Series	LTC3112

15V, 2.5A Synchronous Buck-Boost DC/DC Converter

Datasheets

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PDF, 648 Kb, Revision: D, File uploaded: Sep 20, 2017

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Prices

Packaging

	LTC3112EDHD#PBF	LTC3112EDHD#TRPBF	LTC3112EFE#PBF	LTC3112EFE#TRPBF	LTC3112HDHD#PBF	LTC3112HDHD#TRPBF	LTC3112HFE#PBF	LTC3112HFE#TRPBF	LTC3112IDHD#PBF	LTC3112IDHD#TRPBF	LTC3112IFE#PBF	LTC3112IFE#TRPBF	LTC3112MPDHD#PBF	LTC3112MPDHD#TRPBF	LTC3112MPFE#PBF	LTC3112MPFE#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Package	5x4 DFN-16 Package Outline Drawing	5x4 DFN-16 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	5x4 DFN-16 Package Outline Drawing	5x4 DFN-16 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
Package Code	DHD	DHD	FE	FE	DHD	DHD	FE	FE	DHD	DHD	FE	FE	DHD	DHD	FE	FE
Package Index	05-08-1707	05-08-1707	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1707	05-08-1707	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1707	05-08-1707	05-08-1663 (CA)	05-08-1663 (CA)	05-08-1707	05-08-1707	05-08-1663 (CA)	05-08-1663 (CA)
Pin Count	16	16	20	20	16	16	20	20	16	16	20	20	16	16	20	20

Parametrics

Parameters / Models	LTC3112EDHD#PBF	LTC3112EDHD#TRPBF	LTC3112EFE#PBF	LTC3112EFE#TRPBF	LTC3112HDHD#PBF	LTC3112HDHD#TRPBF	LTC3112HFE#PBF	LTC3112HFE#TRPBF	LTC3112IDHD#PBF	LTC3112IDHD#TRPBF	LTC3112IFE#PBF	LTC3112IFE#TRPBF	LTC3112MPDHD#PBF	LTC3112MPDHD#TRPBF	LTC3112MPFE#PBF	LTC3112MPFE#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	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A	DC1598A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Features	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect	External Synchronization, Burst Mode, Power Good, Output Disconnect
Frequency, kHz	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500
Frequency Sync Range	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz	300kHz - 1.5MHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Isupply, mA	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Monolithic	yes	yes	yes	yes	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	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 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Current, A	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
Polyphase	no	no	no	no	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	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	Buck-Boost	Buck-Boost	Buck-Boost	Buck-Boost
Vin Max, V	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15
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	2.7	2.7	2.7	2.7
Vout Max, V	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Vout Maximum	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V	14V
Vout Min, V	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
Vswitch Max, V	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15

Eco Plan

	LTC3112EDHD#PBF	LTC3112EDHD#TRPBF	LTC3112EFE#PBF	LTC3112EFE#TRPBF	LTC3112HDHD#PBF	LTC3112HDHD#TRPBF	LTC3112HFE#PBF	LTC3112HFE#TRPBF	LTC3112IDHD#PBF	LTC3112IDHD#TRPBF	LTC3112IFE#PBF	LTC3112IFE#TRPBF	LTC3112MPDHD#PBF	LTC3112MPDHD#TRPBF	LTC3112MPFE#PBF	LTC3112MPFE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

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15V, 2.5A Monolithic Buck-Boost DC/DC Converter with 95% Efficiency and Low Noise Operation &mdash LT Journal
PDF, 2.4 Mb, File published: Jul 20, 2012
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design features 15V, 2.5A Monolithic Buck-Boost DC/DC Converter with
95% Efficiency and Low Noise Operation
Eddy Wells Power-hungry handheld devices and industrial instruments often require multicell or high
capacity batteries to support their ever-increasing processing needs. A wide voltage range,
high efficiency buck-boost DC/DC converter is the ideal solution for longer battery run
times and handling multiple input sources. The LTC3112 is a 2.2V to 15V input capable
2.5A buck-boost converter. The extended voltage range allows conversion from a variety of
power sources such as one, two or three Li-ion cells, lead acid batteries, supercapacitors,
USB cables and wall adapters to output voltages programmed between 2.5V and 14V.
The LTC3112 features the latest generation
buck-boost PWM control scheme, effectively eliminating jitter when crossing the
barrier between buck and boost operation. Safeguards such as current limit,
overvoltage protection, thermal shutdown,
and short-circuit protection provide
robust operation in harsh environments.
For demanding applications where component size or conversion efficiency is critical, the LTC3112вЂ™s 750kHz default switching
frequency can be synchronized between
300kHz and 1.5MHz. For designs where
output current needs to be controlled
or measured, an output current monitor
pin is available. Selectable Burst ModeВ®
operation extends the operating life when
the battery-powered device is idle. …

Model Line

Series: LTC3112 (16)

LTC3112EDHD#PBF LTC3112EDHD#TRPBF LTC3112EFE#PBF LTC3112EFE#TRPBF LTC3112HDHD#PBF LTC3112HDHD#TRPBF LTC3112HFE#PBF LTC3112HFE#TRPBF LTC3112IDHD#PBF LTC3112IDHD#TRPBF LTC3112IFE#PBF LTC3112IFE#TRPBF LTC3112MPDHD#PBF LTC3112MPDHD#TRPBF LTC3112MPFE#PBF LTC3112MPFE#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