WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 141
WM8351CGEB/RV
Manufacturer Part Number
WM8351CGEB/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8351CGEBRV.pdf
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Production Data
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DC-DC Converter 2 is a versatile step-up pulse-width-modulated (PWM) DC-DC converter designed
to deliver high power efficiency across full load conditions. The converter can also be used as a
switch.
DC-DC Converter 2 is designed with a fixed frequency current mode architecture. The clock
frequency is set by the internal RC oscillator, which provides a 1.0MHz clock.
The PVDD supply pin provides the core supply for DC-DC Converter 2.
The connections to DC-DC Converter 2 in Constant Voltage Mode are illustrated in Figure 70. See
Section 29.4 for details of the connections for the Constant Current and USB operating modes of the
DC-DC Step-Up Converter.
Figure 70 Step-Up DC-DC Converter Connections
The external components at the converter output are required by the DC-DC Converter integral loop
compensation circuit. Note that the recommended output capacitor Cout varies according to the
required output voltage.
See Section 29.4 for details of the recommended external components.
14.8.3
DC-DC STEP UP CONVERTER
PD, April 2012, Rev 4.5
WM8351
141
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