STOD13AS STMicroelectronics, STOD13AS Datasheet - Page 16

• Manufacturer Part Number: STOD13AS
• Description: 250 mA dual DC-DC converter for powering AMOLED display
• Manufacturer: STMicroelectronics

Specifications of STOD13AS

• Typical Efficiency: 85%
• Temperature Range: -40 °C to 85 °C

Application information
7.2
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Recommended PCB layout
The STOD13AS is a high frequency power switching device and therefore requires a proper
PCB layout in order to obtain the necessary stability and optimize line/load regulation and
output voltage ripple.
Analog input (V
at the C
In order to minimize the ground noise, a common ground node for power ground and a
different one for analog ground must be used. In the recommended layout, the AGND node
is placed close to C
connected by a separated layer routing on the bottom through vias.
The exposed pad is connected to AGND through vias.
Figure 12. Top layer and silk-screen (top view, not to scale)
Figure 13. Bottom layer and silk-screen (top view, not to scale)
IN
pad only. The input capacitor must be as close as possible to the IC.
INA
) and power input (V
REF
ground while the PGND node is centered at C
Doc ID 022733 Rev 1
INP
) must be kept separated and connected together
IN
ground. They are
STOD13AS