wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 31

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
9.3
Figure 10 LDO1 Output Voltage Versus Output Current
Figure 12 LDO1 Output Noise versus Output Current
w
3.09
3.08
3.07
3.06
3.05
3.04
3.03
3.02
3.01
140.0
120.0
100.0
3
80.0
60.0
40.0
20.0
0.0
0
0
LDO REGULATORS
0.01
10
0.02
20
0.03
30
0.04
40
0.05
LDO1 LOAD REGULATION
50
0.06
Load Current (mA)
60
0.07
70
IOUT (A)
80
0.08
90 100 110 120 130 140 150
0.09
0.1
0.11
0.12
0.13
V
IN
= 3.7V
0.14
0.15
Figure 11 LDO1 Load Transient Response
Figure 13 Power Supply Ripple Rejection versus
Frequency 217Hz GSM to 100kHz
LDO1 V
80
70
60
50
40
30
20
10
0
100
IN
= 3 .7V, V
I
OUT
1000
I
OUT
I
OUT
OUT
= 0.1A
= 0.025A
= 0.005A
= 2.5V Load Step 0A to 0.05A
Frequency (Hz)
10000
PD, June 2009, Rev 4.1
V
IN
- V
OUT
WM8351
I
V
= 1V
OUT
OUT
100000
31