C3225X5R1C226M 查看數據表（PDF） - Orister Corporation
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C3225X5R1C226M Datasheet PDF : 10 Pages
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Page No. : 7/10
Output Rectifier Diode
The output rectifier diode supplies the current to the inductor when the high‐side switch is off. To reduce losses due to the
diode forward voltage and recovery times, use a Schottky diode.
Choose a diode whose maximum reverse voltage rating is greater than the maximum input voltage, and whose current rating
is greater than the maximum load current.
Choose a rectifier who’s maximum reverse voltage rating is greater than the maximum input voltage, and who’s current
rating is greater than the maximum load current.
Checking Transient Response
The regulator loop response can be checked by looking at the load transient response. Switching regulators take several
cycles to respond to a step in load current. When a load step occurs, VOUT immediately shifts by an amount equal to ΔILOAD (ESR)
also begins to charge or discharge COUT generating a feedback error signal for the regulator to return VOUT to its steady‐state
value. During this recovery time, VOUT can be monitored for overshoot or ringing that would indicate a stability problem.
Table 1. Suggested Inductors for Typical Application Circuit
Component Supplier
MAGLAYERS
SUMIDA
TOKO
Series
MSCDRI‐124‐150M
CDRH104R
D104C
Dimensions (mm)
12 x 12 x 5.0
10.1 x 10 x 3.0
10 x 10 x 4.3
Table 2. Suggested Capacitors for CIN and COUT
Component Supplier
Part No.
MURATA
GRM31CR61E106K
TDK
C3225X5R1E106K
MURATA
GRM32ER71C226M
TDK
C3225X5R1C226M
Capacitance (uF)
10
10
22
22
Case Size
1206
1206
1200
1200
Table 3. Schottky Rectifier Selection Guide
VIN (Max.)
20V
26V
Part No.
B320
SK33
SS32
B330
B340L
SK33
MBRD330
SS33
2A Load Current
Vendor
Diodes, Inc. (www.diodes.com)
Pan Jit International (www.panjit.com.tw)
General Semiconductor (www.gensemi.com)
Diodes, Inc. (www.diodes.com)
Diodes, Inc. (www.diodes.com)
Diodes, Inc. (www.diodes.com)
On Semiconductor (www.onsemi.com)
Fairchild Semiconductor (www.fairchildsemi.com)
General Semiconductor (www.gensemi.com)
DS‐RS6516‐05 February, 2010
www.Orister.com
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