LT3482EUD#PBF

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Analog Devices

90V BOOST DC/DC CONVERTER WITH APD BIAS CURRENT MONITOR

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LT3482EUD#PBF

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Analog Devices

90V BOOST DC/DC CONVERTER WITH APD BIAS CURRENT MONITOR

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DocumentsR530 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3482EUD#PBF

Current - Output	280 mA
Frequency - Switching [Max]	1.1 MHz
Frequency - Switching [Min]	650 kHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	16-WFQFN Exposed Pad
Supplier Device Package	16-QFN (3x3)
Synchronous Rectifier	False
Topology	Boost, Charge Pump
Voltage - Input (Max) [Max]	16 V
Voltage - Input (Min) [Min]	2.5 V
Voltage - Output (Max) [Max]	90 V
Voltage - Output (Min/Fixed)	5 V

LT3482 Series

90V Boost DC/DC Converter with APD Bias Current Monitor

Part	Function	Topology	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Package / Case	Frequency - Switching [Max]	Frequency - Switching [Min]	Output Type	Voltage - Output (Min/Fixed)	Output Configuration	Voltage - Input (Min) [Min]	Supplier Device Package	Current - Output	Number of Outputs	Voltage - Output (Max) [Max]
Analog Devices LT3482EUD#TRPBF	Step-Up	Boost Charge Pump	16 V	85 °C	-40 °C	Surface Mount	16-WFQFN Exposed Pad	1.1 MHz	650 kHz	Adjustable	5 V	Positive	2.5 V	16-QFN (3x3)	280 mA	1	90 V
Analog Devices LT3482IUD#TRPBF	Step-Up	Boost Charge Pump	16 V	85 °C	-40 °C	Surface Mount	16-WFQFN Exposed Pad	1.1 MHz	650 kHz	Adjustable	5 V	Positive	2.5 V	16-QFN (3x3)	280 mA	1	90 V
Analog Devices LT3482EUD#PBF	Step-Up	Boost Charge Pump	16 V	85 °C	-40 °C	Surface Mount	16-WFQFN Exposed Pad	1.1 MHz	650 kHz	Adjustable	5 V	Positive	2.5 V	16-QFN (3x3)	280 mA	1	90 V
Analog Devices LT3482IUD#PBF	Step-Up	Boost Charge Pump	16 V	85 °C	-40 °C	Surface Mount	16-WFQFN Exposed Pad	1.1 MHz	650 kHz	Adjustable	5 V	Positive	2.5 V	16-QFN (3x3)	280 mA	1	90 V

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	$ 11.51
		10	$ 8.07
		25	$ 7.18
		100	$ 6.19
		250	$ 5.71
		500	$ 5.42
		1000	$ 5.18

Description

General part information

LT3482 Series

The LT3482 is a fixed frequency current mode step-up DC/DC converter with voltage doubler designed to bias avalanche photodiodes (APDs) in optical receivers. It can provide up to 90V output. The LT3482 features high side APD bias current monitoring with better than 10% relative accuracy over the entire temperature range. The integrated power switch, Schottky diodes and APD bias current monitor allow a small converter footprint and low solution cost. Constant switching frequency results in predictable output noise that is easy to filter. The inductor-based topology ensures an input free from switching noise. An integrated high side current monitor produces a current proportional to APD bias current with better than 10% relative accuracy over four decades of dynamic range in the input range of 250nA to 2.5mA. This APD bias current can be used as a reference to provide a digitally programmed output voltage via the CTRL pin. The LT3482 is available in the tiny footprint (3mm × 3mm) 16-lead QFN package.ApplicationsAPD BiasPIN Diode BiasOptical Receivers and ModulesFiber Optic Network Equipment