Linear Technology - Product Page

LT8335 - Low IQ Boost/SEPIC/ Inverting Converter with 2A, 28V Switch

Datasheet

Documentation

Features

3V to 25V Input Voltage Range
Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: I_Q = 6μA
2A, 28V Power Switch
Positive or Negative Output Voltage Programming with a Single Feedback Pin
Fixed 2MHz Switching Frequency
Programmable Undervoltage Lockout (UVLO)
Internal Compensation and Soft-Start
Low Profile (0.75mm) 8-Lead (3mm × 2mm) DFN Package

Typical Application

Description

The LT®8335 is a current mode DC/DC converter capable of generating either positive or negative output voltages using a single feedback pin. It can be configured as a boost, SEPIC or inverting converter consuming as low as 6μA of quiescent current. Low ripple Burst Mode operation maintains high efficiency down to very low output currents while keeping the output ripple below 15mV in a typical application. The internally compensated current mode architecture results in stable operation over a wide range of input and output voltages. Integrated soft-start and frequency foldback functions are included to control inductor current during start-up. The 2MHz operation combined with the small 8-lead DFN package, enables low cost, area efficient solutions.

Packaging

3x2 DFN-8

Order Info

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)^*
LT8335EDDB#PBF	DFN	8	E	$3.57
LT8335EDDB#TRPBF	DFN	8	E	$3.57	$2.50
LT8335EDDB#TRMPBF	DFN	8	E	$3.57	$2.55
LT8335IDDB#PBF	DFN	8	I	$3.93
LT8335IDDB#TRMPBF	DFN	8	I	$3.93	$2.80
LT8335IDDB#TRPBF	DFN	8	I	$3.93	$2.75

^* 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.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number	Description	Price	Documentation
DC2449A-A	LT8335 Demo Board \| Micropower Boost, 3V ≤ VIN ≤ 10V, Vout = 12V @ 275mA, 2MHz fSWITCH	Contact Factory	Design File Manual Schematic ltspice Software
DC2449A-B	LT8335 Demo Board \| Micropower Inverter, 4.5V ≤ VIN ≤ 13V, Vout = -12V @ 350mA, 2MHz fSWITCH	Contact Factory	Design File Manual Schematic