BD91361MUV Datasheet, PDF (15/18 Pages) Rohm – Output 2A More High-efficiency Step-down Switching Regulator with Built-in Power MOS FET

BD91361MUV
Technical Note
●Recommended components Lists on above application
Symbol
Part
Value
L
Coil
2.0uH
CIN Ceramic capacitor
22uF
CO Ceramic capacitor
22uF
CITH
RITH
Ceramic capacitor
Resistance
VOUT=1.2V
1000pF
6.8kΩ
Cf Ceramic capacitor
1000 pF
Rf Resistance
10Ω
CBST Ceramic capacitor
0.1uF
Manufacturer
Series
Sumida
CDR6D28MNNP-2R0NC
Murata
GRM32EB11A226KE20
Murata
GRM31CB30J226KE18
Murata
Rohm
CRM18 Series
MCR03 Series
Murata
GRM18 Series
Rohm
MCR03 Series
Murata
GRM18 Series
※The parts list presented above is an example of recommended parts. Although the parts are sound, actual circuit
characteristics should be checked on your application carefully before use. Be sure to allow sufficient margins to
accommodate variations between external devices and this IC when employing the depicted circuit with other circuit
constants modified. Both static and transient characteristics should be considered in establishing these margins. When
switching noise is substantial and may impact the system, a low pass filter should be inserted between the VCC and
PVCC pins, and a schottky barrier diode or snubber established between the SW and PGND pins.
●I/O equivalence circuit
・EN pin
・SW pin
PVCC PVCC
PVCC
EN
SW
・ADJ pin
ADJ
・ITH pin
VCC
ITH
・BST pin
PVCC
BST
PVCC
・VID pin ( VID<0>, VID<1> are the same composition
VID
SW
Fig.39 I/O equivalence circuit
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15/17
2010.06 - Rev.A