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LTC3528_15 Datasheet, PDF (13/18 Pages) Linear Technology – 1A, 1MHz Synchronous Step-Up DC/DC Converters
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TYPICAL APPLICATIONS
1 Cell to 1.8V
4.7µH
VIN
0.88V TO 1.6V
4.7µF
OFF ON
SW
VIN
VOUT
LTC3528
PGOOD FB
SHDN
GND
499k
1M
33pF
VOUT
1.8V
250mA
10µF
3528 TA02a
LTC3528/LTC3528B
100
90
80
70
60
50
40
30
0.01
Efficiency
VIN = 0.9V
VIN = 1.2V
VIN = 1.5V
0.1
1
10
100
LOAD CURRENT (mA)
1000
3528 TA02b
Dual 1 Cell to 1.8V, 3V Sequenced Supply
VIN
0.88V TO 1.6V
4.7µH
4.7µF 475k
OFF ON
SW
VIN
VOUT
LTC3528
PGOOD FB
SHDN
GND
499k
1M
33pF
VOUT1
1.8V
250mA
10µF
4.7µF
4.7µH
SW
VIN
VOUT
LTC3528
PGOOD FB
SHDN
GND
499k
324k
33pF
VOUT2
3V
200mA
10µF
3528 TA03a
0.5V/DIV
Output Voltage Sequencing
VOUT2
VOUT1
VIN
PGOOD1
200µs/DIV
3528 TA03b
3528fd
13
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