LT1304CS8-3.3

Series: -
Number of Outputs: 1
Synchronous Rectifier: No
Operating Temperature: 0°C ~ 70°C
Mounting Type: Surface Mount
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 8-SOIC
Type: Step-Up (Boost)
Packaging: Tube
Output Type: Fixed
Voltage - Output: 3.3V
Current - Output: 200mA
Manufacturer: Linear Technology
PWM Type: Burst Mode?
Voltage - Input: 1.5 V ~ 8 V
Frequency - Switching: Up to 300kHz


Features:

5V at 200mA from Two Cells
10mA Quiescent Current in Shutdown
Operates with VIN as Low as 1.5V
Low-Battery Detector Active in Shutdown
Low Switch VCESAT: 370mV at 1A Typical
120mA Quiescent Current in Active Mode
Switching Frequency Up to 300kHz
Programmable Peak Current with One Resistor
8-Lead SO Package


Application

2-, 3-, or 4-Cell to 5V or 3.3V Step-Up
Portable Instruments
Bar Code Scanners
Palmtop Computers
Diagnostic Medical Instrumentation
 Personal Data Communicators/Computers


Pinout




Specifications

VIN Voltage ................................................................ 8V
SW Voltage ...............................................  0.4V to 25V
FB Voltage (LT1304) ...................................... VIN + 0.3V
Sense Voltage (LT1304-3.3/LT1304-5) ..................... 8V
ILIM Voltage .............................................................. 5V
SHDN Voltage ............................................................ 6V
LBI Voltage ............................................................... VIN
LBO Voltage ............................................................... 8V
Maximum Power Dissipation ............................. 500mW
Junction Temperature.......................................... 125°C
Operating Temperature Range ................. 0°C to 70°C
Storage Temperature Range .............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C

Description

The LT®1304 is a micropower step-up DC/DC converter ideal for use in small, low voltage, battery-operated systems. The devices operate from a wide input supply range of 1.5V to 8V. The LT1304-3.3 and LT1304-5 generate regulated outputs of 3.3V and 5V and the adjustable LT1304 can deliver output voltages up to 25V. Quiescent current, 120mA in active mode, decreases to just 10mA in shutdown with the low-battery detector still active. Peak switch current, internally set at 1A, can be reduced by adding a single resistor from the ILIM pin to ground. The high speed operation of the LT1304 allows the use of small, surface-mountable inductors and capacitors. The LT1304 is available in an 8-lead SO package.

Parameters:

Technical/Catalog Information	LT1304CS8-3.3
Vendor	Linear Technology
Category	Integrated Circuits (ICs)
Type	Step-Up (Boost)
Number of Outputs	1
Voltage - Input	1.5 ~ 8 V
Voltage - Output	3.3V
Current - Output	200mA
Power - Output	500mW
Package / Case	8-SOIC (3.9mm Width)
Packaging	Bulk
Internal Switch(s)	Yes
Synchronous	No
Rds (On)	-
Operating Temperature	0°C ~ 70°C
Frequency - Switching	300kHz
Drawing Number	161; 05-08-1610; S, S8; 8, 14, 16
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	LT1304CS8 3 3 LT1304CS833