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LT1304CS8#PBF

Description
Conv DC-DC 1.5V to 8V Step Up Single-Out 25V 1.2A 8-Pin SOIC N Tube
File Size279KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1304CS8#PBF Overview

Conv DC-DC 1.5V to 8V Step Up Single-Out 25V 1.2A 8-Pin SOIC N Tube

LT1304CS8#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeStep Up
Output TypeAdjustable
Switching Frequency (kHz)300
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)25(Max)
Maximum Output Current (A)1.2
Minimum Input Voltage (V)1.5
Maximum Input Voltage (V)8
Operating Supply Voltage (V)1.5 to 8
Typical Quiescent Current (uA)120
Line Regulation0.15%/V
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
PackagingTube
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LT1304/LT1304-3.3/LT1304-5
Micropower
DC/DC Converters with
Low-Battery Detector
Active in Shutdown
FEATURES
s
s
s
s
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s
s
s
s
DESCRIPTION
The LT
®
1304 is a micropower step-up DC/DC converter
ideal for use in small, low voltage, battery-operated sys-
tems. 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, 120µA in active mode, decreases to just 10µA 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 I
LIM
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
5V at 200mA from Two Cells
10µA Quiescent Current in Shutdown
Operates with V
IN
as Low as 1.5V
Low-Battery Detector Active in Shutdown
Low Switch V
CESAT
: 370mV at 1A Typical
120µA Quiescent Current in Active Mode
Switching Frequency Up to 300kHz
Programmable Peak Current with One Resistor
8-Lead SO Package
APPLICATIONS
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s
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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
TYPICAL APPLICATION
2-Cell to 5V Step-Up Converter with Low-Battery Detect
22µH*
3
V
IN
LBI
4
SW
SENSE
LT1304-5
6
I
LIM
SHDN
7
SHUTDOWN
*SUMIDA CD54-220
**1N5817
1304 TA01
D1**
90
499k
1
8
100k
2 CELLS
100µF
604k
NC
100µF
LBO
LOW WHEN
V
BAT
< 2.2V
EFFICIENCY (%)
+
+
5V
200mA
80
70
LBO
GND
5
2
60
V
IN
= 3.3V
V
IN
= 2.5V
V
IN
= 1.8V
1
10
100
LOAD CURRENT (mA)
500
1304 TA02
50
40
0.1
U
U
U
Efficiency
1

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Description Conv DC-DC 1.5V to 8V Step Up Single-Out 25V 1.2A 8-Pin SOIC N Tube Conv DC-DC 1.5V to 8V Step Up Single-Out 25V 1.2A 8-Pin SOIC N T/R Conv DC-DC 1.5V to 8V Step Up Single-Out 3.3V 1.2A 8-Pin SOIC N Tube Conv DC-DC 1.5V to 8V Step Up Single-Out 3.3V 1.2A 8-Pin SOIC N T/R Conv DC-DC 1.5V to 8V Step Up Single-Out 5V 1.2A 8-Pin SOIC N Tube Conv DC-DC 1.5V to 8V Step Up Single-Out 5V 1.2A 8-Pin SOIC N T/R Conv DC-DC 1.5V to 8V Step Up Single-Out 5V 1.2A 8-Pin SOIC N T/R Conv DC-DC 1.5V to 8V Step Up Single-Out 5V 1.2A 8-Pin SOIC N Conv DC-DC 1.5V to 8V Step Up Single-Out 25V 1.2A 8-Pin SOIC N
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant Compliant Not Compliant Compliant Not Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active Active Unconfirmed Active Unconfirmed Unconfirmed
Type Step Up Step Up Step Up Step Up Step Up Step Up Step Up Step Up Step Up
Output Type Adjustable Adjustable Fixed Fixed Fixed Fixed Fixed Fixed Adjustable
Switching Frequency (kHz) 300 300 300 300 300 300 300 300 300
Switching Regulator Yes Yes Yes Yes Yes Yes Yes Yes Yes
Number of Outputs 1 1 1 1 1 1 1 1 1
Output Voltage (V) 25(Max) 25(Max) 3.3 3.3 5 5 5 5 25(Max)
Maximum Output Current (A) 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
Minimum Input Voltage (V) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
Maximum Input Voltage (V) 8 8 8 8 8 8 8 8 8
Operating Supply Voltage (V) 1.5 to 8 1.5 to 8 1.5 to 8 1.5 to 8 1.5 to 8 1.5 to 8 1.5 to 8 1.5 to 8 1.5 to 8
Typical Quiescent Current (uA) 120 120 120 120 120 120 120 120 120
Line Regulation 0.15%/V 0.15%/V 0.15%/V 0.15%/V 0.15%/V 0.15%/V 0.15%/V 0.15%/V 0.15%/V
Maximum Operating Temperature (°C) 70 70 70 70 70 70 70 70 70
Supplier Temperature Grade Commercial Commercial Commercial Commercial Commercial Commercial Commercial Commercial Commercial
Pin Count 8 8 8 8 8 8 8 8 8
Standard Package Name SOP SOP SOP SOP SOP SOP SOP SOP SOP
Supplier Package SOIC N SOIC N SOIC N SOIC N SOIC N SOIC N SOIC N SOIC N SOIC N
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max)
Package Length 5(Max) 5(Max) 5(Max) 5(Max) 5(Max) 5(Max) 5(Max) 5(Max) 5(Max)
Package Width 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max)
PCB changed 8 8 8 8 8 8 8 8 8
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
HTS 8542.39.00.01 8542.39.00.01 - 8542.39.00.01 - 8542.39.00.01 8542.39.00.01 8542.39.00.01 -
Packaging Tube Tape and Reel Tube Tape and Reel Tube Tape and Reel Tape and Reel - -
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