LT8570HMS8E#TRPBF

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Analog Devices Inc./Maxim Integrated

BOOST/SEPIC/INVERTING DC/DC CONVERTER WITH 65V SWITCH, SOFT-START AND SYNCHRONIZATION

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LT8570HMS8E#TRPBF

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Analog Devices Inc./Maxim Integrated

BOOST/SEPIC/INVERTING DC/DC CONVERTER WITH 65V SWITCH, SOFT-START AND SYNCHRONIZATION

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT8570 Series

The LT8570 and LT8570-1 are PWM DC/DC converters. The LT8570 contains a 0.5A, 65V power switch, while the LT8570-1 contains a 0.25A, 65V power switch. The LT8570 and LT8570-1 can be configured as either a boost, SEPIC or inverting converter.The LT8570/LT8570-1 have an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8570/LT8570-1 can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.The LT8570/LT8570-1 also feature innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.Additional features such as frequency foldback and softstart are integrated. The LT8570/LT8570-1 are available in tiny thermally enhanced 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.ApplicationsVFD Bias SuppliesTFT-LCD Bias SuppliesGPS ReceiversDSL ModemsLocal Power Supply

Technical Specifications

Parameters and characteristics for this part

Specification	LT8570HMS8E#TRPBF

Current - Output	500 mA
Frequency - Switching (Max)	1.5 MHz
Frequency - Switching (Min)	200 kHz
Function	Step-Up, 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 or Negative, Positive, Negative
Output Type	Adjustable
Package Features	Exposed Pad
Package Length	0.118 in
Package Name	8-MSOP, 8-TSSOP, 8-MSOP-EP
Package Width	3 mm
Synchronous Rectifier	No
Topology	SEPIC, Boost, Cuk
Voltage - Input (Max)	40 V
Voltage - Input (Min)	2.55 V
Voltage - Output (Fixed)	1.204 V
Voltage - Output (Max)	65 V
Voltage - Output (Min)	0.003 V

LT8570 Series

Part	Topology	Operating Temperature (Min)	Operating Temperature (Max)	Current - Output	Voltage - Output (Fixed)	Voltage - Output (Min)	Output Type	Voltage - Input (Max)	Function	Frequency - Switching (Min)	Frequency - Switching (Max)	Voltage - Output (Max)	Voltage - Input (Min)	Synchronous Rectifier	Output Configuration	Mounting Type	Number of Outputs	Package / Case	Package Width	Package Name	Package Length	Package Features
Analog Devices Inc./Maxim Integrated LT8570HDD#PBF	Boost Cuk SEPIC	-40 °C	150 °C	500 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1	8-WFDFN Exposed Pad	3 mm	8-DFN	3 mm
Analog Devices Inc./Maxim Integrated LT8570HMS8E-1#PBF	Boost Cuk SEPIC	-40 °C	150 °C	250 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1		3 mm	8-MSOP 8-MSOP-EP 8-TSSOP	0.118 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LT8570IDD#PBF	Boost Cuk SEPIC	-40 °C	125 °C	750 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1	8-WFDFN Exposed Pad	3 mm	8-DFN	3 mm
Analog Devices Inc./Maxim Integrated LT8570HDD-1#PBF	Boost Cuk SEPIC	-40 °C	150 °C	250 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1	8-WFDFN Exposed Pad	3 mm	8-DFN	3 mm
Analog Devices Inc./Maxim Integrated LT8570HDD#TRPBF	Boost Cuk SEPIC	-40 °C	150 °C	500 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1	8-WFDFN Exposed Pad	3 mm	8-DFN	3 mm
Analog Devices Inc./Maxim Integrated LT8570EMS8E#TRPBF	Boost Cuk SEPIC	-40 °C	125 °C	750 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1		3 mm	8-MSOP 8-MSOP-EP 8-TSSOP	0.118 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LT8570EDD-1#PBF	Boost Charge Pump Cuk SEPIC	-40 °C	125 °C	375 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1	8-WFDFN Exposed Pad	3 mm	8-DFN	3 mm
Analog Devices Inc./Maxim Integrated LT8570EMS8E#PBF	Boost Cuk SEPIC	-40 °C	125 °C	750 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1		3 mm	8-MSOP 8-MSOP-EP 8-TSSOP	0.118 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LT8570IMS8E-1#TRPBF	Boost Charge Pump Cuk SEPIC	-40 °C	125 °C	375 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1		3 mm	8-MSOP 8-MSOP-EP 8-TSSOP	0.118 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LT8570IMS8E#PBF	Boost Cuk SEPIC	-40 °C	125 °C	750 mA	1.204 V	0.003 V	Adjustable	40 V	Step-Up Step-Up/Step-Down	200 kHz	1.5 MHz	65 V	2.55 V	No	Negative Positive Positive or Negative	Surface Mount	1		3 mm	8-MSOP 8-MSOP-EP 8-TSSOP	0.118 in	Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LT8570HMS8E#TRPBF | Datasheet

R530 Reliability Data