Datasheet Linear Technology LT8390A

Manufacturer	Linear Technology
Series	LT8390A

60V 2MHz Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum

Datasheets

Preview and Download

PDF, 1.1 Mb, Language: en, File uploaded: Oct 20, 2017, Pages: 30
60V 2MHz Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum

Extract from the document

Prices

Packaging

	LT8390AEFE#PBF	LT8390AEFE#TRPBF	LT8390AEUFD#PBF	LT8390AEUFD#TRPBF	LT8390AHFE#PBF	LT8390AHFE#TRPBF	LT8390AHUFD#PBF	LT8390AHUFD#TRPBF	LT8390AIFE#PBF	LT8390AIFE#TRPBF	LT8390AIUFD#PBF	LT8390AIUFD#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	TSSOP-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing	4x5 QFN-28 Package Outline Drawing
Package Code	FE	FE	UFD	UFD	FE	FE	UFD	UFD	FE	FE	UFD	UFD
Package Index	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712	05-08-1663 (EB)	05-08-1663 (EB)	05-08-1712	05-08-1712
Pin Count	28	28	28	28	28	28	28	28	28	28	28	28

Parametrics

Parameters / Models	LT8390AEFE#PBF	LT8390AEFE#TRPBF	LT8390AEUFD#PBF	LT8390AEUFD#TRPBF	LT8390AHFE#PBF	LT8390AHFE#TRPBF	LT8390AHUFD#PBF	LT8390AHUFD#TRPBF	LT8390AIFE#PBF	LT8390AIFE#TRPBF	LT8390AIUFD#PBF	LT8390AIUFD#TRPBF
Architecture	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode	Constant Frequency Peak-Buck Peak-Boost Current Mode
Demo Boards	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A	DC2598A
Design Tools	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
Features	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good	Spread Spectrum, Output Disconnect, Resistor Set Frequency, External Synchronization, Power Good
Frequency, kHz	2000	2000	2000	2000	2000	2000	2000	2000	2000	2000	2000	2000
Frequency Adjust Range	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz
Frequency Sync Range	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz	600kHz to 2MHz
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Isupply, mA	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
Monolithic	no	no	no	no	no	no	no	no	no	no	no	no
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 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	10	10	10	10	10	10	10	10	10	10	10	10
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no
Sense Resistor	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense
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
Topology 1	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	60	60	60	60	60	60	60	60	60	60	60	60
Vin Min, V	4	4	4	4	4	4	4	4	4	4	4	4
Vout Max, V	60	60	60	60	60	60	60	60	60	60	60	60
Vout Maximum	60V	60V	60V	60V	60V	60V	60V	60V	60V	60V	60V	60V
Vout Min, V	1	1	1	1	1	1	1	1	1	1	1	1
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5

Eco Plan

	LT8390AEFE#PBF	LT8390AEFE#TRPBF	LT8390AEUFD#PBF	LT8390AEUFD#TRPBF	LT8390AHFE#PBF	LT8390AHFE#TRPBF	LT8390AHUFD#PBF	LT8390AHUFD#TRPBF	LT8390AIFE#PBF	LT8390AIFE#TRPBF	LT8390AIUFD#PBF	LT8390AIUFD#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Design Notes

Download
60V 2MHz Buck-Boost Controllers Regulate High Power Voltage and Current with High Efficiency and Low EMI &mdash DN567
PDF, 474 Kb, File published: Aug 24, 2017
Extract from the document
60V 2MHz Buck-Boost Controllers Regulate High Power
Voltage and Current with High Efficiency and Low EMI
Design Note 567
Keith Szolusha
Synchronous buck-boost controllers are versatile and
highly efficient. They can produce high power as both a
boost and a buck with a single inductor, keeping power
supply design simple. Normally, a buck-boost controller
in a high power application is operated at a standard
or low switching frequency, this maximizes efficiency
and avoids complications related to shoot-through and
switch blanking time, which can arise in synchronous
rectification at high frequencies. Nevertheless, a high
frequency 2MHz buck-boost controller with a smaller
inductor ensures that the EMI content resides above
the AM frequency band. currents, such as 10A. Such high peak currents would
burn up the small IC packages of typical integrated
converters, but external 3mm Г— 3mm synchronous
MOSFETs can handle this power. The MOSFETs can be
arranged in tight quarters with hot-loop capacitors for
very low EMI. The unique peak switch current sense
amplifier architecture places the sense resistor next to
the power inductor, outside the critical input and output …

Model Line

Series: LT8390A (12)

LT8390AEFE#PBF LT8390AEFE#TRPBF LT8390AEUFD#PBF LT8390AEUFD#TRPBF LT8390AHFE#PBF LT8390AHFE#TRPBF LT8390AHUFD#PBF LT8390AHUFD#TRPBF LT8390AIFE#PBF LT8390AIFE#TRPBF LT8390AIUFD#PBF LT8390AIUFD#TRPBF

Manufacturer's Classification

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