LT8570HDD-1#PBF

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Analog Devices

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

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DocumentsR530 Reliability Data Datasheet

LT8570HDD-1#PBF

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Analog Devices

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

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Technical Specifications

Parameters and characteristics for this part

Specification	LT8570HDD-1#PBF

Current - Output	250 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
Output Type	Adjustable
Package / Case	8-WFDFN Exposed Pad
Supplier Device Package	8-DFN (3x3)
Synchronous Rectifier	False
Topology	Boost, Cuk, SEPIC
Voltage - Input (Min) [Min]	2.55 V
Voltage - Output (Max)	65 V
Voltage - Output (Min/Fixed) [Max]	1.204 V
Voltage - Output (Min/Fixed) [Min]	0.003 V

LT8570 Series

Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization

Part	Voltage - Output (Max)	Mounting Type	Output Configuration	Package / Case	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Output Type	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Min/Fixed) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Function	Number of Outputs	Supplier Device Package	Package / Case [custom]
Analog Devices LT8570IDD#PBF	65 V	Surface Mount	Positive or Negative	8-WFDFN Exposed Pad	750 mA	-40 °C	125 ¯C	Boost Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-DFN (3x3)
Analog Devices LT8570HDD-1#PBF	65 V	Surface Mount	Positive or Negative	8-WFDFN Exposed Pad	250 mA	-40 °C	150 °C	Boost Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-DFN (3x3)
Analog Devices LT8570EDD#PBF	65 V	Surface Mount	Positive or Negative	8-WFDFN Exposed Pad	750 mA	-40 °C	125 ¯C	Boost Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-DFN (3x3)
Analog Devices LT8570EMS8E-1#TRPBF	65 V	Surface Mount	Positive or Negative	8-MSOP 8-TSSOP Exposed Pad	375 mA	-40 °C	125 ¯C	Boost Charge Pump Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-MSOP-EP	0.118 in 3 mm
Analog Devices LT8570IDD#TRPBF	65 V	Surface Mount	Positive or Negative	8-WFDFN Exposed Pad	750 mA	-40 °C	125 ¯C	Boost Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-DFN (3x3)
Analog Devices LT8570EMS8E-1#PBF	65 V	Surface Mount	Positive or Negative	8-MSOP 8-TSSOP Exposed Pad	375 mA	-40 °C	125 ¯C	Boost Charge Pump Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-MSOP-EP	0.118 in 3 mm
Analog Devices LT8570IDD-1#PBF	65 V	Surface Mount	Positive or Negative	8-WFDFN Exposed Pad	375 mA	-40 °C	125 ¯C	Boost Charge Pump Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-DFN (3x3)
Analog Devices LT8570IMS8E#TRPBF	65 V	Surface Mount	Positive or Negative	8-MSOP 8-TSSOP Exposed Pad	750 mA	-40 °C	125 ¯C	Boost Cuk SEPIC	Adjustable	2.55 V	0.003 V	1.204 V	1.5 MHz	200 kHz	Step-Up Step-Up/Step-Down	1	8-MSOP-EP	0.118 in 3 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 9.06
		10	$ 6.12
		25	$ 5.35
		121	$ 4.38
		363	$ 4.01

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