LTC3559 Linear Technology, LTC3559 Datasheet - Page 8

• Manufacturer Part Number: LTC3559
• Description: Linear USB Battery Charger
• Manufacturer: Linear Technology

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LTC3559
TYPICAL PERFORMANCE CHARACTERISTICS
8
I
20mV/DIV (AC)
L
I
L
= 200mA/DIV
= 60mA/DIV
500mV/DIV
INDUCTOR
INDUCTOR
CURRENT
CURRENT
2V/DIV
2V/DIV
V
V
SW
EN
OUT
OUT
PV
PULSE SKIP MODE
LOAD = 6
Buck Regulator Burst Mode
Operation
PV
LOAD = 60mA
Buck Regulator Start-Up Transient
IN
IN
= 3.8V
= 3.8V
50
2 s/DIV
5mA TO 290mA
I
50mV/DIV (AC)
L
m
= 200mA/DIV
s/DIV
LOAD STEP
INDUCTOR
CURRENT
V
OUT
Buck Regulator Transient
Response, Burst Mode Operation
PV
IN
3559 G33
3559 G35
= 3.8V
50μs/DIV
5mA TO 290mA
I
50mV/DIV (AC)
L
20mV/DIV (AC)
I
= 200mA/DIV
L
LOAD STEP
= 50mA/DIV
INDUCTOR
INDUCTOR
CURRENT
CURRENT
2V/DIV
3559 G37
V
V
SW
OUT
OUT
PV
PV
LOAD = 10mA
Buck Regulator Transient
Response, Pulse Skip Mode
Buck Regulator Pulse Skip Mode
Operation
IN
IN
= 3.8V
= 3.8V
200ns/DIV
50 s/DIV
3559 G36
3559 G34
3559f