Diodes AP1120 - Manual (Page 4)

AP1120
DUAL 1A LOW DROPOUT POSITIVE REGULATOR
AP1120 Rev. 2 4 of 7 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Absolute Maximum Ratings
Symbol Parameter Rating Unit
V
IN
DC Supply Voltage -0.3 to 18 V V
P
D
Power Dissipation Internally Limited
T
ST
Storage Temperature -65 to +150
o
C
T
OP
Operating Junction Temperature Range 0 to +150 o C
Electrical Characteristics
(Under Operating Conditions)
Parameter Conditions Min Typ. Max Unit
Output Voltage
AP1120(B) - V
OUT1
I
OUT
= 10mA, T
A
= 25
o
C,
4.8V ≦ V
IN
≦ 12V
3.235 3.300 3.365 V
AP1120 - V
OUT2
I
OUT
= 10mA, T
A
= 25
o
C,
4V ≦ V
IN
≦ 12V
2.450 2.500 2.550 V
AP1120B - V
OUT2
I
OUT
= 10mA, T
A
= 25
o
C,
4V ≦ V
IN
≦ 12V
1.764 1.800 1.836 V
Line Regulation I
O
=10mA,V
OUT
+1.5V<V
IN
<12V, T
A
=25 o C 0.2 %
Load Regulation
AP1120 series
V
OUT1
V
IN
= 5V, 0 ≦ I
OUT
≦ 1A,
T
A
=25 o C (Note 3, 4)
26 33 mV
AP1120 series
V
OUT2
V
IN
=4V, 0mA<Io<1A,
T
A
=25 o C (Note 3, 4)
20 25 mV
Dropout Voltage
(V
IN
-V
OUT
)
I
OUT
= 1A,
ΔV
OUT
=0.1%V
OUT
1.3 1.4 V
Current Limit (V
IN
-V
OUT
) = 5V 1. 1 A
Minimum Load Current 0
o C ≦ Tj ≦ 125 o C (Note 5) 5 10 mA
Thermal Regulation T
A
=25
o
C, 30ms pulse 0.008 0.04 %/W
Ripple Rejection F=120Hz,C
OUT
=25uF Tantalum, I
OUT
=1A 60 70 dB
Temperature Stability I
O
=10mA 0.5 %
JA
θ
Thermal Resistance
Junction-to-Ambient (No
heat sink; No air flow)
SOP-8L: Control Circuitry/Power Transistor
(Note 6)
CH1 or CH2 only
CH1 & CH2 and PD1=PD2
50
45
O
C/W
JC
θ
Thermal Resistance
Junction-to-Case
SOP-8L: Control Circuitry/Power Transistor
(Note 6)
CH1 or CH2 only
CH1 & CH2 and PD1=PD2
20
12
O
C/W
Notes: 3. 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. Load regulation is measured at the output
lead = 1/18” from the package.
4. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by
the input/output differentially and the output current. Guaranteed maximum power dissipation will not be available over the
full input/output range.
5. Quiescent current is defined as the minimum output current that requires maintaining regulation. At 12V input/output
differential the device is guaranteed to regulate if the output current is greater than 10mA.
6. Vout1 and Vout2 are connected to the PCB copper area 5.5mm*5.5mm separately. If you need large PD or lower Tc & Tj,
please connect to the large copper area >> 5.5mm*5.5mm (like 10mm*10mm).