R1111N
BLOCK DIAGRAM
R1111Nxx1A
R1111Nxx1B
1
5
1
5
VDD
VOUT
V
DD
VOUT
Vref
Vref
Current Limit
Current Limit
CE
3
GND
2
CE
3
GND
2
SELECTION GUIDE
7KHꢀRXWSXWꢀYROWDJHꢃꢀWKHꢀDFWLYHꢀW\SHꢃꢀWKHꢀSDFNLQJꢀW\SHꢃꢀDQGꢀWKHꢀWDSLQJꢀW\SHꢀIRUꢀWKHꢀ,&VꢀFDQꢀEHꢀVHOHFWHGꢀDWꢀWKH
XVHUꢑVꢀUHTXHVWꢄꢀ7KHꢀVHOHFWLRQꢀFDQꢀEHꢀPDGHꢀE\ꢀGHVLJQDWLQJꢀWKHꢀSDUWꢀQXPEHUꢀDVꢀVKRZQꢀEHORZꢀꢎ
5ꢁꢁꢁꢁ[[[ꢁ[ꢂ[[
↑ ↑ ↑ ↑
D E F G
←3DUWꢀ1XPEHU
Code
Contents
'HVLJQDWLRQꢀRIꢀ3DFNDJHꢀ7\SHꢀꢎ
1ꢎ627ꢂꢅꢆꢂꢇꢀ+0LQLꢂPROGꢈ
D
6HWWLQJꢀ2XWSXWꢀ9ROWDJHꢀ+9287ꢈꢀꢎ
E
F
G
6WHSZLVHꢀVHWWLQJꢀZLWKꢀDꢀVWHSꢀRIꢀꢉꢄꢁ9ꢀLQꢀWKHꢀUDQJHꢀRIꢀꢁꢄꢇ9ꢀWRꢀꢇꢄꢉ9ꢀLVꢀSRVVLEOHꢄ
'HVLJQDWLRQꢀRIꢀ$FWLYHꢀ7\SHꢀꢎ
$ꢀꢎ´/µꢀDFWLYHꢀW\SH
%ꢀꢎ´ꢊµꢀDFWLYHꢀW\SH
'HVLJQDWLRQꢀRIꢀ7DSLQJꢀ7\SHꢀꢎ
([ꢄꢀ75ꢃꢀ7/ꢀ+UHIHUꢀWRꢀ7DSLQJꢀ6SHFLILFDWLRQVꢀꢍ75ꢀW\SHꢀLVꢀWKHꢀVWDQGDUGꢀGLUHFWLRQꢄꢈ
2
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
