LT8390HFE#PBF

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Analog Devices Inc./Maxim Integrated

DC/DC CNTRLR SINGLE-OUT STEP DOWN/STEP UP 650KHZ 28-PIN TSSOP EP TUBE

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LT8390HFE#PBF

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Analog Devices Inc./Maxim Integrated

DC/DC CNTRLR SINGLE-OUT STEP DOWN/STEP UP 650KHZ 28-PIN TSSOP EP TUBE

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT8390 Series

The LT8390 is a synchronous 4-switch buck-boost DC/DC controller that regulates output voltage, input or output current from an input voltage above, below, or equal to the output voltage. The proprietary peak-buck/peak-boost current mode control scheme allows adjustable and synchronizable 150kHz to 650kHz fixed frequency operation, or internal ±15% triangle spread spectrum frequency modulation for low EMI. With a 4V to 60V input voltage range, 0V to 60V output voltage capability, and seamless low-noise transitions between operation regions, the LT8390 is ideal for voltage regulator, battery and supercapacitor charger applications in automotive, industrial, telecom, and even battery-powered systems.The LT8390 provides input or output current monitor and power good flag. Fault protection is also provided to detect output short-circuit condition, during which the LT8390 retries, latches off, or keeps running.Max Switching FrequencyMax Output PowerLT8390650kHz450W+LT8390A2MHz50W+APPLICATIONSAutomotive, Industrial, Telecom SystemsHigh Power Battery-Powered System

Technical Specifications

Parameters and characteristics for this part

Specification	LT8390HFE#PBF

Clock Sync	Yes
Control Features	Current Limit, Soft Start, Frequency Control
Duty Cycle (Max)	95 %
Frequency - Switching (Max)	630 kHz
Frequency - Switching (Min)	190 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	150 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	28-TSSOP-EP, 28-TSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Buck-Boost
Voltage - Supply (Vcc/Vdd) Maximum	60 V
Voltage - Supply (Vcc/Vdd) Minimum	4 V

LT8390 Series

Part	Package Width	Package Name	Package Features	Package Length	Synchronous Rectifier	Output Phases	Mounting Type	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Function	Operating Temperature (Max)	Operating Temperature (Min)	Number of Outputs	Output Type	Topology	Control Features	Output Configuration	Duty Cycle (Max)	Frequency - Switching (Max)	Frequency - Switching (Min)	Clock Sync	Package / Case
Analog Devices Inc./Maxim Integrated LT8390EFE#PBF	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	125 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes
Analog Devices Inc./Maxim Integrated LT8390EFE#TRPBF	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	125 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes
Analog Devices Inc./Maxim Integrated LT8390JFE#PBF	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	150 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	Positive	95 %	650 kHz	150 kHz	Yes
Analog Devices Inc./Maxim Integrated LT8390EUFD#PBF	5 mm	28-QFN		4 mm	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	125 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8390IUFD#PBF	5 mm	28-QFN		4 mm	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	125 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8390HFE#TRPBF	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	150 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes
Analog Devices Inc./Maxim Integrated LT8390JFE#TRPBF	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	150 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	Positive	95 %	650 kHz	150 kHz	Yes
Analog Devices Inc./Maxim Integrated LT8390IFE#PBF	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	125 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes
Analog Devices Inc./Maxim Integrated LT8390JUFD#PBF	5 mm	28-QFN		4 mm	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	150 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Enable Frequency Control Phase Control Power Good Soft Start	Positive	95 %	650 kHz	150 kHz	Yes	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8390HUFD#TRPBF	5 mm	28-QFN		4 mm	Yes	1	Surface Mount	60 V	4 V	Step-Down Step-Up	150 °C	-40 °C	1	Transistor Driver	Buck-Boost	Current Limit Frequency Control Soft Start	Positive	95 %	630 kHz	190 kHz	Yes	28-WFQFN Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

LT8390HFE#PBF | Datasheet

Package Drawing - 28-Lead TSSOP w/ EP

R570 Reliability Data

DC2825A - Demo Manual (Rev.0)