LTC3541 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3541' PDF : 22 Pages View PDF
LTC3541
TYPICAL APPLICATIONS
Dual Output with Minimal External Components Using Auto Start-Up Sequence,
Buck in Burst Mode Operation for High Efficiency Down to Low Load Currents
VIN
3.2V TO 4.2V
VOUT1
2.5V
200mA
10µF
10µF
2.2µH
VIN
ENVLDO ENBUCK
SW
LVOUT
LVIN LTC3541
22pF 154k
LFB
BUCKFB
MODE
73k
PGND
GND
576k
VOUT2
1.8V
300mA
2.2µF
165k
VOUT
2V/DIV
LVOUT
2V/DIV
VIN
2V/DIV
3541 TA02a
IVOUT = 200mA
ILVOUT = 300mA
4ms/DIV
3541 TA02b
Dual Output with Minimal External Components Using Auto Start-Up
Sequence, Buck in Pulse Skip Mode for Low Noise Operation
VIN
3.2V TO 4.2V
VOUT1
2.5V
200mA
10µF
10µF
2.2µH
VIN
ENVLDO ENBUCK
SW
MODE
LVIN LTC3541 LVOUT
22pF 154k
BUCKFB
73k PGND
LFB
GND
576k
VOUT2
1.8V
300mA
2.2µF
165k
3541 TA03a
VOUT
2V/DIV
LVOUT
2V/DIV
VIN
2V/DIV
IVOUT = 200mA
ILVOUT = 300mA
4ms/DIV
3541 TA03b
18
For more information www.linear.com/LTC3541
3541fb
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