SC4626CEVB-1 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC4626CEVB-1' PDF : 21 Pages View PDF
Applications Information (continued)
input and output voltage. The maximum input capacitor
RMS current is found from the equation
I = CIN ( RMS )
VOUT
VIN
1
−
VOUT
VIN
The input voltage ripple and RMS current ripple are at
maximum when the input voltage is twice the output
voltage or 50% duty cycle.
The input capacitor provides a low impedance loop for
the edges of pulsed current drawn by the PMOS switch.
Low ESR/ESL X5R ceramic capacitors are recommended
for this function. To minimise stray inductance ,the
capacitor should be placed as closely as possible to the
VIN and GND pins of the SC4626.
Manufacturer
Part Nunber
Murata
GRM21BR61A106K
Murata
GRM21BR71A106K
Murata
GRM21BR60J106K
Murata
GRM21BR70J106K
Murata
GRM21BR60J226M
Value
(μF)
Type
Rated
Voltage
(VDC)
Value
at
3.3V
(μF)
Dimensions
LxWxH
(mm)
10±10% X5R
10
4.42
2.0x1.25x1.25
(EIA:0805)
10±10% X7R
10
4.88
2.0x1.25x1.25
(EIA:0805)
10±10% X5R
6.3
4.05
2.0x1.25x1.25
(EIA:0805)
10±10% X7R
6.3
4.91
2.0x1.25x1.25
(EIA:0805)
22±20% X5R
6.3
6.57
2.0x1.25x1.25
(EIA:0805)
Table 3 – Recommended Capacitors
SC4626
© 2009 Semtech Corp.
19
www.semtech.com
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