AAT1500 Datasheet, PDF (3/14 Pages) List of Unclassifed Manufacturers – CONSTANT CURRENT BOOST CONVERTER FOR 1 TO 4 WHITE LEDS

Advanced Analog Technology, Inc.
DISSIPATION RATINGS
CHARACTERISTICS
Package Thermal Resistance
Power Dissipation, T_C = 25 ° C
PACKAGE
SOT23-6
VSON8
SOT23-6
VSON8
SYMBOL
θ _JA
θ _JA
P_d
P_d
July 2008
AAT1500
VALUE
208
50
0.48
2
UNIT
° C /W
° C /W
W
W
ELECTRICAL CHARACTERISTICS
( V_DD = 3.6 V, T_C = 25 ° C , unless otherwise specified.)
Operating Condition
PARAMETER
Supply Voltage
Under Voltage Lockout
Operating Current
Quiescent Current
Shutdown Current
SYMBOL
V_DD
V_UVLO
I_DD
I_Q
I_SD
TEST CONDITION
V_DD = 5.5V, Switch on
V_DD = 5.5V
V_FB = 1.3V, Switch off
V_DD = 5.5V, V_EN < 0.4V
Oscillator
PARAMETER
Operating Frequency
Maximum Duty Cycle
SYMBOL
f_OSC
D_MAX
TEST CONDITION
MIN TYP MAX UNIT
2.6
4.5
V
1.8 2.2 2.3
V
2
mA
250 500 µA
0.1
1
µA
MIN TYP MAX UNIT
0.8 1.0 1.2 MHz
79 85 92
%
Reference Voltage
PARAMETER
SYMBOL
TEST CONDITION
MIN TYP MAX UNIT
Feedback Voltage
V_IE
Note
0.237 0.250 0.263 V
Note: To measure the feedback voltage, the device V_IE would connect to the application circuit. The inductance is
10 µH and the output voltage equals 12V.
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Version 1.00
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