FAN1539 Fairchild Semiconductor, FAN1539 Datasheet - Page 9

• Manufacturer Part Number: FAN1539
• Description: 1A/1.3A/ LDO With Low Quiescent Current
• Manufacturer: Fairchild Semiconductor

REV. 1.0.8 3/22/04
PRODUCT SPECIFICATION
Typical Performance Characteristics—FAN1539MPX, FAN1540MPX,
FAN1540MMPX, FAN1540DX
Note:
Transient response tests require short lead lengths and low resistance connections at source and load.
3.300V
10mA
Short Circuit Removal Response
3.300V
Line Transient Response
Output Spectral Noise Density
~3.3A
Time (20µs/div)
vs. Frequency
Time (40µs/div)
Frequency (Hz)
(Ceramic Low ESR Capacitors)
(Ceramic Low ESR Capacitors)
C
C
V
t
T
C
OUT
f
IN
I
C
j
IN
= 1 s
OUT
OUT
= 25°C
IN
= 22 F
T
= 5V
= 10 F
t
j
= 22 F
r
= 25°C
= I
(Continued)
= 10 F
= 1 s
MAX
100
90
80
70
60
50
40
30
20
10
1000
0
100
10
0.1
10
1
1
0
C
V
I
Ripple Rejection vs. Frequency
3.300V
OUT
OUT
IN
= 5V
*Note: ESR Values measured at f=10kHz
Load Transient Response
10
C
C
V
T
200
= 10mA
= 10 F (Low ESR)
j
IN
IN
OUT
2
= 25°C
Typical Region of Stability
= 22 F
= 5V
ESR vs. Output Current
= 10 F
400
Time (20µs/div)
Region of Instability
10
Region of Stability
Frequency (Hz)
Output Current (mA)
3
600
(Ceramic Low ESR Capacitors)
10
800
4
C
C
OUT
IN
1000
FAN1539/FAN1540
= 22 F
= 10 F
10
V
T
t
t
5
IN
j
f
r
= 25°C
= 1 s
= 1 s
1200
*
= 5V
10
1400
6
9