LT1302 - Micropower High Output Current Step-Up Adjustable and Fixed 5V DC/DC Converters

Features

• 5V at 600mA or 12V at 120mA from 2-Cell Supply
• 200µA Quiescent Current
• Logic Controlled Shutdown to 15µA
• Low V_CESAT Switch: 310mV at 2A Typical
• Burst Mode^TM Operation at Light Load
• Current Mode Operation for Excellent Line and Load Transient Response
• Available in 8-Lead SO or PDIP
• Operates with Supply Voltage as Low as 2V

Typical Application

Description

The LT1302/LT1302-5 are micropower step-up DC/DC converters that maintain high efficiency over a wide range of output current. They operate from a supply voltage as low as 2V and feature automatic shifting between Burst Mode operation at light load, and current mode operation at heavy load. The internal low loss NPN power switch can handle current in excess of 2A and switch at frequencies up to 400kHz. Quiescent current is just 200µA and can be further reduced to 15µA in shutdown. Available in 8-pin PDIPor 8-pin SO packaging, the LT1302/ LT1302-5 have the highest switch current rating of any similarly packaged switching regulators presently on the market.

Packaging

SO-8

Order Info

• Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
• Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
• Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)*	RoHS Data
LT1302CN8	PDIP	8	C	$4.08	$3.25	View
LT1302CN8#PBF	PDIP	8	C	$4.08	$3.25	View
LT1302CN8-5	PDIP	8	C	$4.08	$3.25	View
LT1302CN8-5#PBF	PDIP	8	C	$4.08	$3.25	View
LT1302CS8	SO	8	C	$4.25	$3.40	View
LT1302CS8#PBF	SO	8	C	$4.25	$3.40	View
LT1302CS8#TR	SO	8	C		$3.46	View
LT1302CS8#TRPBF	SO	8	C		$3.46	View
LT1302CS8-5	SO	8	C	$4.25	$3.40	View
LT1302CS8-5#PBF	SO	8	C	$4.25	$3.40	View
LT1302CS8-5#TR	SO	8	C		$3.46	View
LT1302CS8-5#TRPBF	SO	8	C		$3.46	View
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^* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Applications

• Notebook and Palmtop Computers
• Portable Instruments
• Personal Digital Assistants
• Cellular Telephones
• Flash Memory

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To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

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