WM8350GEB/V Wolfson Microelectronics, WM8350GEB/V Datasheet - Page 28

• Manufacturer Part Number: WM8350GEB/V
• Description: Audio CODECs Audio CODEC plus pwr management
• Manufacturer: Wolfson Microelectronics

Specifications of WM8350GEB/V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8350
9.2
Figure 1 DC-DC1 Efficiency Vs Load Current Vo=1.8V
Figure 3 DC-DC3 Efficiency Vs Load Current Vo=1.8V
w
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0.001
0
0.001
DC-DC CONVERTERS
STANDBY
V
V
V
0.01
STANDBY
V
IN
IN
IN
0.01
V
V
IN
IN
IN
= 3.0V
= 4.2V
= 3.7V
EFFICIENCY vs LOAD
EFFICIENCY vs LOAD
= 4.2V
= 3.0V
= 3.7V
9.2.1
LOAD (A)
DCDC1
LOAD (A)
DCDC3
0.1
POWER EFFICIENCY
0.1
V
V
OUT
OUT
ACTIVE
V
V
V
V
IN
IN
IN
IN
= 1.8V
V
= 1.8V
= 3.7V
= 4.2V
ACTIVE
V
= 4.2V
= 3.0V
IN
IN
= 3.7V
= 3.0V
1
1
Figure 2 DC-DC1 Efficiency Vs Load Current Vo=1.2V
Figure 4 DC-DC2 Efficiency Vs Load Current Vo=20V
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0.001
0
0.001
V
0.01
IN
STANDBY
V
V
= 4.2V
IN
IN
EFFICIENCY vs LOAD
EFFICIENCY vs LOAD
= 3.0V
= 3.7V
LOAD (A)
DCDC1
LOAD (A)
DCDC2
0.01
V
IN
= 3.1V
PD, March 2010, Rev 4.2
0.1
V
IN
= 3.7V
ACTIVE
V
V
IN
OUT
V
V
= 4.2V
Production Data
OUT
IN
= 1.2V
V
= 4.2V
V
IN
= 20.0V
IN
= 3.7V
= 3.0V
1
0.1
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