Diodes AZ2940 User Manual
Page 9
1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940
Data Sheet
9
Sept. 2011 Rev. 2. 4
BCD Semiconductor Manufacturing Limited
Operating Conditions: V
IN
=4.3V, I
OUT
=10mA, C
IN
=10
µF, C
OUT
=10
µF, T
J
=25
o
C, unless otherwise specified.
The Boldface applies over -40
o
C
≤T
J
≤125
o
C.
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Output Voltage
V
OUT
I
OUT
=10mA
3.27
3.3
3.33
V
10mA
≤I
OUT
≤1A, 4.3V≤V
IN
≤13.2V
3.23
3.3
3.37
V
Line Regulation
V
RLINE
I
OUT
=10mA, 4.3V
≤V
IN
≤13.2V
6.6
33
mV
Load Regulation
V
RLOAD
V
IN
=4.3V, 10mA
≤I
OUT
≤1A
9.9
50
mV
Output Voltage
Temperature Coefficient
∆V
OUT
/
∆T
I
OUT
=10mA
66
330
µV/
o
C
Dropout Voltage (Note 4)
V
DROP
∆V
OUT
=1%
I
OUT
=100mA
70
200
mV
I
OUT
=1A
280
550
mV
Ground Current
I
GND
V
IN
=4.3V
I
OUT
=750mA
12
25
mA
I
OUT
=1A
18
mA
Short Circuit Current
I
SC
V
OUT
=0V (Note 2)
1.5
2.2
A
Minimum Load Current
I
LOAD (MIN)
1
5
mA
Output Noise Voltage (rms)
10Hz to 100KHz, I
OUT
=100mA,
C
OUT
=10
µF
400
µV
Thermal Resistance
θ
JC
TO-220-3
4.4
o
C/W
TO-263-3
4.4
TO-252-2 (1)/TO-252-2 (3)
7.8
SOT-223
29.7
AZ2940-3.3 Electrical Characteristics
Electrical Characteristics (Continued)
Note 2: V
IN
=V
OUT(NOMINAL)
+1V.
Note 4: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal
value which is measured at V
OUT
+1V applied to V
IN
.