AP033 Datasheet, PDF (2/5 Pages) Anachip Corp – 1.5A Low Dropout Positive Fixed-Mode Regulator

1.5A Low Dropout Positive Fixed-Mode Regulator
„ Block Diagram
AP033
Vin 1
THERMAL
SHUTDOWN
3 Vout
+
+_－
CURRENT
LIMIT
+
1.25V
+
2 GND
„ Absolute Maximum Ratings
Symbol
Vin
P_D
T_ST
T_OP
Parameter
DC Supply Voltage
Power Dissipation
Storage Temperature
Operating Junction Temperature Range
Rating
Unit
-0.3 to 14
V
Internally Limited
-65 to +150
o_C
0 to +150
o_C
„ Electrical Characteristics (Under Operating Conditions)
Parameter
Output Voltage
Line Regulation
Conditions
V_IN = 5V, I_OUT = 0mA, T_J = 25^oC
4.7V<V_IN<12V, 0<I_OUT<1.5A
4.7V<V_IN<12V, I_OUT = 0mA, T_J=25^oC
Min. Typ. Max. Units
3.267 3.300 3.333 V
3.235 3.300 3.365 V
0.5 10 mV
1.0 10 mV
Load Regulation
Dropout Voltage
(V_IN-V_OUT)
Current Limit
Quiescent Current
Thermal Regulation
Ripple Rejection
Temperature Stability
V_IN = 5V, 0<I_OUT<1.5A, T_J=25^oC (Notes1.2)
∆V_OUT, ∆V_REF = 1%, I_OUT =1.5A (Note 3)
(V_IN-V_OUT)>1.4V, ∆V_OUT=100mV (Note 4)
V_IN <12V
T_A=25 ^oC, 30ms pulse
F=120Hz, C_OUT=25uF Tantalum, I_OUT=1.5A
AP033
V_IN=6.3V
3 15
8 33
1.3 1.4
1.6
5 10
0.008 0.04
mV
mV
V
A
mA
%/W
60 72 dB
0.5
%
Thermal Resistance
Junction-to-Ambient
(No heat sink ;No air
flow)
Thermal Resistance
Junction-to-Case
TO-252
TO-252: Control Circuitry/Power Transistor
101
o_C/W
10
o_C/W
Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are
measured at a constant junction temperature by low duty cycle pulse testing.
Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 2W. Power dissipation is determined by the
input/output differential and the output current.
Note 3: Dropout voltage is specified over the full output current range of the device.
Note 4: AP033 is guaranteed to operate at higher peak current than 1.6 Amp. See the thermal regulation specifications for changes in
output voltage due the heating effects.
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Aug.27, 2004
2/5