Data Sheet
WHITE LED STEP-UP CONVERTER
AP3019A
Electrical Characteristics
VIN =3V, VCTRL=3V, TA =25°C, unless otherwise specified.
Parameter
Symbol
VIN (min)
VIN (max)
Conditions
Min
Typ
Max
Unit
Minimum Operating Voltage
Maximum Operating Voltage
2.5
V
16
IOUT=20mA, 4 LEDs,
TA=-40oC to 85oC
Feedback Voltage (Note 2)
VFB
mV
188
200
212
FB Pin Bias Current
Quiescent Current
IFB
IQ
ISHDN
f
35
2.5
4.0
1.2
93
100
3.2
6.0
1.5
nA
mA
µA
VFB=VIN, no switching
VCTRL=0V
1.5
2.0
0.9
90
Shutdown Quiescent Current
Switching Frequency
Maximum Duty Cycle
MHz
%
DMAX
D=40%
D=80%
ISW=250mA
VSW=5V
High
550
550
360
0.01
Switch Current Limit (Note 3)
ILIMIT
mA
Switch VCE Saturation Voltage
Switch Leakage Current
VCESAT
mV
5
µA
1.8
CTRL Pin Voltage
VCTRL
V
low
0.5
CTRL Pin Bias Current
OVP Voltage
ICTRL
VOV
100
30
µA
V
Schottky Forward Drop
VDROP
ID=150mA
0.7
0.1
V
VR(reverse voltage)=23V
VR(reverse voltage)=27V
4
Schottky Leakage Current
Soft Start Time
µA
µS
150
t
300
60
SOT-23-6
Thermal Resistance
(Junction to Case)
θJC
°C/W
TSOT-23-6
60
Note 2: The bold type specifications of full temperature range are guaranteed by design (GBD).
Note 3: The switch current limit is related to duty cycle. Please refer to Figure 15 for detail.
Mar. 2010 Rev. 1.7
BCD Semiconductor Manufacturing Limited
5
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
