Diodes AP3036/A - Manual (Page 5)

Preliminary Datasheet
WHITE LED STEP-UP CONVERTER AP3036/A
Jul. 2012 Rev. 1.3 . BCD Semiconductor Manufacturing Limited
5
Electrical Characteristics
V
IN
=3V, V
CTRL
=3V, T
A
=25°C, unless otherwise specified.
Parameter Symbol Conditions Min Typ Max Unit
Minimum Operating Voltage V
IN
(Min) 2.5
V
Maximum Operating Voltage V
IN
(Max) 16
Feedback Voltage V
FB
AP3036
I
OUT
=20mA, 4 LEDs
188 200 212
mV
AP3036A 235 250 265
FB Pin Bias Current I
FB
35 100 nA
Quiescent Current I
Q
V
FB
=V
IN
, No
Switching
1.6 3.1 3.9 mA
Shutdown Quiescent Current I
SHDN
V
CTRL
=0V 45 75
µA
Switching Frequency f 1.0 MHz
Maximum Duty Cycle D
MAX
90 93 %
Switch Current Limit (Note 2) I
LIMIT
D=40% or 80% 550 mA
Switch V
CE
Saturation Voltage V
CESAT
I
SW
=250mA 360 mV
Switch Leakage Current V
SW
=5V 0.01 5
µA
CTRL Pin Voltage V
CTRL
High 1.8
V
Low 0.4
CTRL Pin Bias Current I
CTRL
100
µA
OVP Voltage V
OV
30 V
Schottky Forward Drop V
DROP
I
D
=150mA 0.7 V
Schottky Leakage Current
V
R
(Reverse
Voltage)=23V
0.1 4
µA
V
R
(Reverse
Voltage)=27V
150
Soft Start Time t 100
µs
Thermal Resistance
(Junction to Case)
θ
JC
SOT-23-6 60
°C/W
TSOT-23-6 60
Note 2: The switch current limit is related to duty cycle. Please refer to Figure 16 for detail.