ACT6305
Rev0, 13-May-08
ABSOLUTE MAXIMUM RATINGS
PARAMETER
OUT, EN to G
FB, LX to G
Continuous LX Current
Maximum Power Dissipation (derate 5mV/°C above T
A
= 50°C)
Junction to Ambient Thermal Resistance (
θ
JA
)
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
VALUE
-0.3 to 6
-0.3 to V
OUT
+ 0.3
Internally Limited
0.53
190
-40 to 150
-55 to 150
300
UNIT
V
V
A
W
°C/W
°C
°C
°C
: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
IN
= 1.5V, V
OUT
= 3.3V, T
A
= 25°C, unless otherwise specified.)
PARAMETER
Minimum Operating Input Voltage
Maximum Operating Input Voltage
Startup Voltage
Output Voltage
Output Voltage Range
Quiescent Current at OUT
Shutdown Supply Current
Startup to Normal Transition Threshold
FB Feedback Voltage
FB Input Current
Power Switch Current Limit
Power Switch On Resistance
Synchronous Rectifier On Resistance
LX Leakage Current
Maximum Switch On-Time
Minimum Switch Off-Time
EN Logic Low Threshold
EN Logic High Threshold
EN Input Current
SYMBOL
V
IN
V
IN
V
IN
V
OUT
TEST CONDITIONS
MIN
TYP
0.6
MAX
5
UNIT
V
V
V
V
V
µA
µA
V
I
LOAD
= 1mA
FB = OUT; 60mV
PP
Ripple
FB = G; 40mV
PP
Ripple
External Feedback Divider
3.2
4.85
2
1
3.3
5
1.18
3.4
5.15
5
I
Q
I
SD
V
FB
= 1.3V
EN = G
17
0.1
1.85
34
1
V
FB
V
OUT
= 2V to 5V
FB = 1.3V
1.15
1.180
50
1.21
V
nA
I
LIM
R
ONN
R
ONP
I
LX
= 100mA
I
LX
= -100mA
EN = G, V
LX
= 0V or 3.3V
t
ONMAX
t
OFFMIN
V
IL
V
IH
0.7
1
0.19
0.21
0.1
1.25
0.4
0.4
1
6.25
1.25
0.4
A
Ω
Ω
µA
µs
µs
V
V
3.75
0.75
5
1
0.6
1
µA
Innovative Power
TM
-3-
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ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
