User guide

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940
Data Sheet
13
Sept. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited
-25 0 25 50 75 100 125
200
225
250
275
300
325
350
375
400
425
450
475
500
Dropout Voltage (mV)
Junction Temperature (
o
C)
I
OUT
=750mA
AZ2940-5.0
Figure 12. Dropout Voltage vs. Junction Temperature
Figure 14. Output Voltage vs. Junction Temperature
Typical Performance Characteristics (Continued)
Figure 13. Dropout Voltage vs. Junction Temperature
-25 0 25 50 75 100 125
4.95
4.96
4.97
4.98
4.99
5.00
5.01
5.02
5.03
5.04
5.05
Output Voltage (V)
Junction Temperature (
o
C)
V
IN
=6V
I
OUT
=10mA
AZ2940-5.0
-25 0 25 50 75 100 125
200
225
250
275
300
325
350
375
400
425
450
475
500
Dropout Voltage (mV)
Junction Temperature (
o
C)
I
OUT
=1A
AZ2940-5.0
0 20406080100
0.01
0.1
1
10
100
Stable Range
C
OUT
=2.2µF
V
OUT
=5V
T
A
=25
O
C
Unstable Range
Output Capacitor ESR (Ω)
Output Current (mA)
Figure 15. Output Capacitor ESR vs. Output Current