LT1304 Datasheet, PDF (14/19 Pages) Linear Technology – Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown

UTC LT1304/LT1304-3.3V/LT1304-5.0V
LINEAR INTEGRATED CIRCUIT
2-Cell to 3.3V Boost Converter
L1
22μH
MBRS130L
+ C1
100μF
2 CELLS
V IN
SW
SENSE
LT130-3.3
SHDN
ILIM GND
SHUTDOWN NC
3.3V
300mA
+ ^C2
10μ0 F
10V
3.3V SEPIC Efficiency(Step-Up/Step-Down Converter)
VIN
2.5V TO 8V
+
C2
47μF
16V
SHUTDOW N
L1A
C1
1μ F
2
1
VIN
SW
LT1304-3.3
SHDN SENSE
I LIM
GND
4
L1B
*
3
N
C
MBRS130L
3.3V
300mA
+ C3
100μF
10V
2-Cell to 3.3V ConverterEfficiency
90
80
70
60
50
40
30
0.1
VIN=3.3V
VIN=2.5V
VIN=1.8V
1
10
100
Load Current (mA)
1000
3.3V SEPIC Efficiency
80
75
70
65
60
VIN=4.5V
55
VIN=3.5V
VIN=2.5V
50
1
10
100 500
Load Current (mA)
5V SPEC (Step-Up/Step-Down Converter)
C1
80
L1A 1μF
VIN
3V TO 8V
2
1
75
+
47μF
16V
SHUTDOW N
4
V IN
SW
L1B
MBRS130L
70
3
LT1304-5.0
SHDN SENSE
5V
65
200mA
I LIM
GND
+ _{100 μF}
60
NC
10V
55
5V SEPIC Efficiency
VIN=6V
VIN=5V
VIN=4V
VIN=3V
50
1
10
100 500
Load Current (mA)
UTC UNISONIC TECHNOLOGIES CO., LTD. 14
QW-R103-018,A