wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 343

• Manufacturer Part Number: wm8350
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
29.4 LDO REGULATOR EXTERNAL COMPONENTS
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The recommended connections to the LDO Regulators are illustrated in Figure 92.
Figure 92 LDO Regulators External Components
When selecting suitable capacitors, is it imperative that the effective capacitance is within the
required limits at the applicable input/output voltage of the converter. Ceramic X7R or X5R types are
recommended.
Wolfson recommends the following external components for use with LDO Regulators 1, 2, 3 and 4.
Note that larger capacitors will improve load transient response and power supply rejection. A
maximum of 10μF is possible at the output; a maximum of 1μF is possible at the input.
Table 159 Recommended External Components - LDO1, LDO2, LDO3 and LDO4
LDOVDD
COMPONENT
C
C
OUT
IN
2.5V – 5.5V
Input pin VINA supplies LDO1 and LDO2; Input pin VINB supplies LDO3 and LDO4.
VALUE
0.1μF
1μF
VINA
WM8350
LDO1
Note: Equivalent circuit applies for LDO2, LDO3 and LDO4.
C
Murata GRM155R60J105KE19D
IN
Phycomp 06032R104K7B2
PART NUMBER
VOUT1
GND
C
Recommended component values:
C
C
OUT
OUT
IN
= 0.1uF
= 1uF
V
O
PD, June 2009, Rev 4.1
Load
WM8350
0402
0603
SIZE
343