lp2985-28d NXP Semiconductors, lp2985-28d Datasheet - Page 6

• Manufacturer Part Number: lp2985-28d
• Description: Lp2985-xx Micropower 150 Ma Low Noise, Low Dropout Linear Regulator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TYPICAL PERFORMANCE CURVES (continued)
2.8 V product. Except where noted otherwise, T
2003 Oct 31
Micropower 150 mA low noise,
low dropout linear regulator
0.01
–10
–20
–30
–40
–50
–80
–60
–70
0.1
30
25
20
10
15
10
0
0
5
1
Figure 13. ESR stability area (C
0.01
0
0
Figure 9. Ripple rejection (C
C
n
= 0.01 F
Figure 11. GND pin current.
I
I
1
50
O
O
50
O
0.1
= 150 mA
= 100 mA
= 30 mA
I
I
O
O
, OUTPUT CURRENT (mA)
, OUTPUT CURRENT (mA)
f, FREQUENCY (kHz)
STABLE AREA
100
100
1
150
150
n
10
i
= 0.01 F).
= C
amb
o
= 1 F).
= 25 C; V
C
100
200
i
200
= C
o
= 1 F
SL02136
SL02138
SL02140
IN
1000
250
250
= V
o
+ 1 V; V
6
cont
= 2 V; C
0.01
–10
–20
–30
–40
–50
–60
–70
–80
200
150
100
0.1
10
Figure 14. ESR stability area (C
50
0
0
0.00001
1
0.01
0
Figure 10. Ripple rejection (C
i
= 1 F; C
C
Figure 12. Output noise voltage.
n
= 0 F
I
I
1
O
O
50
O
0.1
C
0.0001
= 150 mA
= 100 mA
n
= 30 mA
, NOISE REDUCTION CAPACITOR ( F)
o
= 1 F; C
I
O
, OUTPUT CURRENT (mA)
f, FREQUENCY (kHz)
STABLE AREA
100
1
n
0.001
= 0.01 F.
i
150
10
= C
LP2985-XX
n
= 0 F).
o
= 0.47 F).
C
0.01
i
= C
100
200
o
Product data
= 0.47 F
SL02137
SL02139
SL02141
1000
0.1
250