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R1122N501A-TR-FA [RICOH]

Fixed Positive LDO Regulator, 5V, 0.26V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN;
R1122N501A-TR-FA
型号： R1122N501A-TR-FA
厂家： RICOH ELECTRONICS DEVICES DIVISION    RICOH ELECTRONICS DEVICES DIVISION
描述：

Fixed Positive LDO Regulator, 5V, 0.26V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN

光电二极管
文件： 总20页 (文件大小：226K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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LOW NOISE 150mA LDO REGULATOR  
NO. EA-060-0204  
5ꢀꢀꢁꢁ1ꢂ6(5,(6  
OUTLINE  
7KHꢀ5ꢁꢁꢂꢂ1ꢀ6HULHVꢀDUHꢀ&026ꢃEDVHGꢀYROWDJHꢀUHJXODWRUꢀ,&VꢀZLWKꢀKLJKꢀRXWSXWꢀYROWDJHꢀDFFXUDF\ꢄꢀH[WUHPHO\ꢀORZꢀVXSꢃ  
SO\ꢀFXUUHQWꢄꢀORZꢀ21ꢃUHVLVWDQFHꢀDQGꢀKLJKꢀULSSOHꢀUHMHFWLRQꢅꢀ(DFKꢀRIꢀWKHVHꢀYROWDJHꢀUHJXODWRUꢀ,&VꢀFRQVLVWVꢀRIꢀDꢀYROWDJHꢀUHIꢃ  
HUHQFHꢀXQLWꢄꢀDQꢀHUURUꢀDPSOLILHUꢄꢀUHVLVWRUVꢄꢀDꢀFXUUHQWꢀOLPLWꢀFLUFXLWꢄꢀDQGꢀDꢀFKLSꢀHQDEOHꢀFLUFXLWꢅꢀ7KHVHꢀ,&VꢀSHUIRUPꢀZLWKꢀORZ  
GURSRXWꢀYROWDJHꢀDQGꢀDꢀFKLSꢀHQDEOHꢀIXQFWLRQꢅ  
7KHꢀOLQHꢀWUDQVLHQWꢀUHVSRQVHꢀDQGꢀORDGꢀWUDQVLHQWꢀUHVSRQVHꢀRIꢀWKHꢀ5ꢁꢁꢂꢂ1ꢀ6HULHVꢀDUHꢀH[FHOOHQWꢄꢀWKXVꢀWKHVHꢀ,&VꢀDUH  
YHU\ꢀVXLWDEOHꢀIRUꢀWKHꢀSRZHUꢀVXSSO\ꢀIRUꢀKDQGꢃKHOGꢀFRPPXQLFDWLRQꢀHTXLSPHQWꢅꢀ7KHꢀRXWSXWꢀYROWDJHꢀRIꢀWKHVHꢀ,&VꢀLVꢀIL[HG  
ZLWKꢀKLJKꢀDFFXUDF\ꢅ  
6LQFHꢀWKHꢀSDFNDJHꢀIRUꢀWKHVHꢀ,&VꢀLVꢀ627ꢃꢂꢆꢃꢇꢀ+0LQLꢃPROGꢈꢀSDFNDJHꢄꢀKLJKꢀGHQVLW\ꢀPRXQWLQJꢀRIꢀWKHꢀ,&VꢀRQꢀERDUGVꢀLV  
SRVVLEOHꢅ  
FEATURES  
• 8OWUDꢃ/RZꢀ6XSSO\ꢀ&XUUHQWꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 7\Sꢅꢀꢁꢉꢉµ$  
• 6WDQGE\ꢀ0RGHꢀ&XUUHQWꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 7\Sꢅꢀꢉꢅꢁµ$  
• /RZꢀ'URSRXWꢀ9ROWDJH ꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 7\Sꢅꢀꢉꢅꢁꢊ9ꢀ+,287ꢀ ꢀꢁꢉꢉP$ꢄꢀꢆ9ꢀ2XWSXWꢀW\SHꢈ  
• ꢋLJKꢀ5LSSOHꢀ5HMHFWLRQ ꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 7\SꢅꢀꢌꢉG%ꢀ+Iꢀ ꢀꢁNꢋ]ꢈ  
• /RZꢀ7HPSHUDWXUHꢃ'ULIWꢀ&RHIILFLHQWꢀRIꢀ2XWSXWꢀ9ROWDJHꢅꢅꢅꢅꢅꢅ 7\Sꢅꢀ ꢁꢉꢉSSPꢍ°&  
• ([FHOOHQWꢀ/LQHꢀ5HJXODWLRQꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 7\Sꢅꢀꢉꢅꢉꢇ:ꢍ9  
• ꢋLJKꢀ$FFXUDF\ꢀ2XWSXWꢀ9ROWDJH ꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ ꢂꢅꢉ:  
• 6PDOOꢀ3DFNDJHꢀꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 627ꢃꢂꢆꢃꢇꢀ+0LQLꢃPROGꢈ  
• 2XWSXWꢀ9ROWDJHꢀꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 6WHSZLVHꢀVHWWLQJꢀZLWKꢀDꢀVWHSꢀRIꢀꢉꢅꢁ9ꢀLQꢀWKHꢀUDQJHꢀRIꢀꢁꢅꢇ9ꢀWR  
ꢇꢅꢉ9ꢀLVꢀSRVVLEOHꢅ  
• %XLOWꢃLQꢀFKLSꢀHQDEOHꢀFLUFXLWꢀ+ꢂꢀ7\SHVꢎꢀ$ꢏꢀDFWLYHꢀ´/µꢄꢀ%ꢏꢀDFWLYHꢀ´ꢋµꢈ  
• %XLOWꢃLQꢀ)ROGꢃEDFNꢀSURWHFWLRQꢀFLUFXLWꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 6KRUWꢀ&XUUHQWꢀ7\SꢅꢀꢆꢉP$  
• 3LQRXWꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅꢅ 6LPLODUꢀWRꢀWKHꢀ7.ꢁꢁꢂꢄꢀ7.ꢁꢁꢁ  
• &HUDPLFꢀ&DSDFLWRUVꢀDUHꢀ5HFRPPHQGDEOHꢀWRꢀEHꢀXVHGꢀZLWKꢀWKLVꢀ,&ꢅ  
APPLICATIONS  
• 3RZHUꢀVRXUFHꢀIRUꢀFHOOXODUꢀSKRQHVꢀVXFKꢀDVꢀ*60ꢄꢀ&'0$ꢄꢀ3&6ꢀDQGꢀVRꢀIRUWKꢅ  
• 3RZHUꢀVRXUFHꢀIRUꢀGRPHVWLFꢀDSSOLDQFHVꢀVXFKꢀDVꢀFDPHUDVꢄꢀ9&5VꢀDQGꢀFDPFRUGHUVꢅ  
• 3RZHUꢀVRXUFHꢀIRUꢀEDWWHU\ꢃSRZHUHGꢀHTXLSPHQWꢅ  
1
R1122N  
BLOCK DIAGRAM  
R1122Nxx1A  
R1122Nxx1B  
3
1
3
1
VDD  
V
OUT  
VDD  
V
OUT  
_
+
_
+
Vref  
Vref  
GND  
GND  
CE  
Current Limit  
Current Limit  
CE  
2
2
4
4
SELECTION GUIDE  
7KHꢀRXWSXWꢀYROWDJHꢄꢀWKHꢀDFWLYHꢀW\SHꢄꢀWKHꢀSDFNLQJꢀW\SHꢄꢀDQGꢀWKHꢀWDSLQJꢀW\SHꢀIRUꢀWKHꢀ,&VꢀFDQꢀEHꢀVHOHFWHGꢀDWꢀWKHꢀXVHUCV  
UHTXHVWꢅ  
7KHꢀVHOHFWLRQꢀFDQꢀEHꢀPDGHꢀE\ꢀGHVLJQDWLQJꢀWKHꢀSDUWꢀQXPEHUꢀDVꢀVKRZQꢀEHORZꢀꢏ  
5ꢁꢁꢂꢂ1[[ꢁ[ꢃ[[  
↑ ↑ ↑  
D E F  
←3DUWꢀ1XPEHU  
Code  
Contents  
6HWWLQJꢀ2XWSXWꢀ9ROWDJHꢀ+9287ꢈꢏ  
D
6WHSZLVHꢀVHWWLQJꢀZLWKꢀDꢀVWHSꢀRIꢀꢉꢅꢁ9ꢀLQꢀWKHꢀUDQJHꢀRIꢀꢁꢅꢇ9ꢀWRꢀꢇꢅꢉ9ꢀLVꢀSRVVLEOHꢅ  
'HVLJQDWLRQꢀRIꢀ$FWLYHꢀ7\SHꢏ  
$ꢏꢀDFWLYHꢀ´/µꢀW\SH  
E
F
%ꢏꢀDFWLYHꢀ´ꢋµꢀW\SH  
'HVLJQDWLRQꢀRIꢀ7DSLQJꢀ7\SHꢏ  
([ꢅꢀ75ꢄꢀ7/ꢀ+UHIHUꢀWRꢀ7DSLQJꢀ6SHFLILFDWLRQVꢎꢀ75ꢀW\SHꢀLVꢀWKHꢀVWDQGDUGꢀGLUHFWLRQꢅꢈ  
2
R1122N  
PIN CONFIGURATION  
SOT-23-5  
5
4
NC  
CE  
(mark side)  
GND  
V
OUT  
VDD  
1
2
3
PIN DESCRIPTION  
Pin No.  
Symbol  
9287  
Description  
ꢁ
2XWSXWꢀSLQ  
ꢂ
ꢆ
ꢐ
ꢇ
*1'  
9''  
*URXQGꢀ3LQ  
,QSXWꢀ3LQ  
ꢀRUꢀ&(  
ꢀꢁ  
&KLSꢀ(QDEOHꢀ3LQ  
1Rꢀ&RQQHFWLRQ  
1&  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
Item  
Rating  
Unit  
9
9,1  
,QSXWꢀ9ROWDJH  
ꢑꢅꢉ  
9&(  
,QSXWꢀ9ROWDJHꢀ+&(ꢀRUꢀ&(ꢀ3LQꢈ  
2XWSXWꢀ9ROWDJH  
ꢃꢉꢅꢆꢀaꢀ9,1ꢒꢉꢅꢆ  
ꢃꢉꢅꢆaꢀ9,1ꢒꢉꢅꢆ  
ꢂꢉꢉ  
9
9287  
,287  
9
2XWSXWꢀ&XUUHQW  
P$  
Pꢓ  
°&  
°&  
3'  
3RZHUꢀ'LVVLSDWLRQ  
ꢂꢇꢉ  
7RSW  
7VWJ  
2SHUDWLQJꢀ7HPSHUDWXUHꢀ5DQJH  
6WRUDJHꢀ7HPSHUDWXUHꢀ5DQJH  
ꢃꢐꢉꢀaꢀꢌꢇ  
ꢃꢇꢇꢀaꢀꢁꢂꢇ  
3
R1122N  
ELECTRICAL CHARACTERISTICS  
• R1122Nxx1A  
7RSWꢀ ꢀꢂꢇ°&  
Symbol  
Item  
2XWSXWꢀ9ROWDJH  
Conditions  
Min.  
Typ.  
Max.  
Unit  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
9287  
9287  
9287  
9
ꢁP$ꢀ≤ꢀ,287ꢀ≤ꢀꢆꢉP$  
×ꢉꢅꢊꢌ  
×ꢁꢅꢉꢂ  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
,287  
2XWSXWꢀ&XUUHQW  
ꢁꢇꢉ  
P$  
P9  
ꢓKHQꢀ9287ꢀ ꢀ6HWꢀ9287ꢃꢉꢅꢁ9  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
∆9287ꢍ∆,287 /RDGꢀ5HJXODWLRQ  
ꢁꢂ  
ꢐꢉ  
ꢁP$ꢀ≤ꢀ,287ꢀ≤ꢀꢌꢉP$  
UHIHUꢀWRꢀWKHꢀ(/(&7,&$/ꢀ&ꢋ$5$&7(5,67,&6ꢀE\ꢀ287387ꢀ92/7ꢃ  
$*(  
9',)  
'URSRXWꢀ9ROWDJH  
,66  
6XSSO\ꢀ&XUUHQW  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
ꢁꢉꢉ  
ꢉꢅꢁ  
ꢁꢑꢉ  
ꢁꢅꢉ  
µ$  
µ$  
,VWDQGE\  
6XSSO\ꢀ&XUUHQWꢀ+6WDQGE\ꢈ  
9,1ꢀ ꢀ9&(ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
6HWꢀ9287ꢒꢉꢅꢇ9ꢀ≤ꢀ9,1ꢀ≤ꢀꢔ9  
,287ꢀ ꢀꢆꢉP$  
∆9287ꢍ∆9,1 /LQHꢀ5HJXODWLRQ  
ꢉꢅꢉꢇ  
ꢌꢉ  
ꢉꢅꢂꢉ  
:ꢍ9  
Iꢀ ꢀꢁNꢋ]ꢄꢀ5LSSOHꢀꢉꢅꢇ9SꢃS  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
55  
9,1  
5LSSOHꢀ5HMHFWLRQ  
,QSXWꢀ9ROWDJH  
G%  
9
ꢂꢅꢉ  
ꢔꢅꢉ  
2XWSXWꢀ9ROWDJH  
,287ꢀ ꢀꢆꢉP$  
SSP  
∆9287ꢍ∆7  
ꢁꢉꢉ  
7HPSHUDWXUHꢀ&RHIILFLHQW  
ꢃꢐꢉ°&ꢀ≤ꢀ7RSWꢀ≤ꢀꢌꢇ°&  
ꢍ°&  
,OLP  
538  
6KRUWꢀ&XUUHQWꢀ/LPLW  
9287ꢀ ꢀꢉ9  
ꢆꢉ  
P$  
0Ω  
9
ꢀ3XOOꢃXSꢀ5HVLVWDQFH  
ꢀ,QSXWꢀ9ROWDJHꢀ´ꢋµ  
ꢀ,QSXWꢀ9ROWDJHꢀ´/µ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢂꢅꢇ  
ꢁꢅꢇ  
ꢇꢅꢉ  
ꢁꢉꢅꢉ  
9,1  
9&(+  
9&(/  
HQ  
ꢉꢅꢉꢉ  
ꢉꢅꢂꢇ  
9
2XWSXWꢀ1RLVH  
%ꢓꢀ ꢀꢁꢉꢋ]ꢀaꢀꢁꢉꢉNꢋ]  
ꢆꢉ  
µ9UPV  
4
R1122N  
• R1122Nxx1B  
7RSW ꢂꢇ°&  
Symbol  
Item  
Conditions  
Min.  
Typ.  
Max.  
Unit  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
9287  
9287  
9287  
2XWSXWꢀ9ROWDJH  
9
ꢁP$ꢀ≤ꢀ,287ꢀ≤ꢀꢆꢉP$  
×ꢉꢅꢊꢌ  
×ꢁꢅꢉꢂ  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
,287  
2XWSXWꢀ&XUUHQW  
ꢁꢇꢉ  
P$  
P9  
ꢓKHQꢀ9287ꢀ ꢀ6HWꢀ9287ꢃꢉꢅꢁ9  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
∆9287ꢍ∆,287 /RDGꢀ5HJXODWLRQ  
ꢁꢂ  
ꢐꢉ  
ꢁP$ꢀ≤ꢀ,287ꢀ≤ꢀꢌꢉP$  
UHIHUꢀWRꢀWKHꢀ(/(&7,&$/ꢀ&ꢋ$5$&7(5,67,&6ꢀE\ꢀ287387ꢀ92/7ꢃ  
$*(  
9',)  
,66  
'URSRXWꢀ9ROWDJH  
6XSSO\ꢀ&XUUHQW  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
ꢁꢉꢉ  
ꢉꢅꢁ  
ꢁꢑꢉ  
ꢁꢅꢉ  
µ$  
µ$  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
9&(ꢀ ꢀ*1'  
,VWDQGE\  
6XSSO\ꢀ&XUUHQWꢀ+6WDQGE\ꢈ  
6HWꢀ9287ꢒꢉꢅꢇ9ꢀ≤ꢀ9,1ꢀ≤ꢀꢔ9  
,287ꢀ ꢀꢆꢉP$  
∆9287ꢍ∆9,1 /LQHꢀ5HJXODWLRQ  
ꢉꢅꢉꢇ  
ꢌꢉ  
ꢉꢅꢂꢉ  
:ꢍ9  
Iꢀ ꢀꢁNꢋ]ꢄꢀ5LSSOHꢀꢉꢅꢇ9SꢃS  
9,1ꢀ ꢀ6HWꢀ9287ꢒꢁ9  
55  
9,1  
5LSSOHꢀ5HMHFWLRQ  
,QSXWꢀ9ROWDJH  
G%  
9
ꢂꢅꢉ  
ꢔꢅꢉ  
2XWSXWꢀ9ROWDJH  
,287ꢀ ꢀꢆꢉP$  
SSP  
∆9287ꢍ∆7  
ꢁꢉꢉ  
7HPSHUDWXUHꢀ&RHIILFLHQW  
ꢃꢐꢉ°&ꢀ≤ꢀ7RSWꢀ≤ꢀꢌꢇ°&  
ꢍ°&  
,OLP  
53'  
9&(+  
9&(/  
HQ  
6KRUWꢀ&XUUHQWꢀ/LPLW  
&(ꢀ3XOOꢃGRZQꢀ5HVLVWDQFH  
&(ꢀ,QSXWꢀ9ROWDJHꢀ´ꢋµ  
&(ꢀ,QSXWꢀ9ROWDJHꢀ´/µ  
2XWSXWꢀ1RLVH  
9287ꢀ ꢀꢉ9  
ꢆꢉ  
P$  
0Ω  
9
ꢂꢅꢇ  
ꢁꢅꢇ  
ꢇꢅꢉ  
ꢁꢉꢅꢉ  
9,1  
ꢉꢅꢉꢉ  
ꢉꢅꢂꢇ  
9
%ꢓꢀ ꢀꢁꢉꢋ]ꢀaꢀꢁꢉꢉNꢋ]  
ꢆꢉ  
µ9UPV  
5
R1122N  
• ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE  
7RSWꢀ ꢀꢂꢇ°&  
Dropout Voltage  
VDIF (V)  
Conditions  
Output Voltage  
VOUT (V)  
Typ.  
Max.  
ꢉꢅꢇꢇ  
ꢉꢅꢐꢑ  
ꢉꢅꢆꢇ  
ꢉꢅꢂꢊ  
ꢉꢅꢂꢔ  
ꢁꢅꢇꢀ≤ꢀ9287ꢀ≤ꢀꢁꢅꢔ  
ꢁꢅꢑꢀ≤ꢀ9287ꢀ≤ꢀꢁꢅꢌ  
ꢁꢅꢊꢀ≤ꢀ9287ꢀ≤ꢀꢂꢅꢆ  
ꢂꢅꢐꢀ≤ꢀ9287ꢀ≤ꢀꢂꢅꢑ  
ꢂꢅꢌꢀ≤ꢀ9287ꢀ≤ꢀꢇꢅꢉ  
ꢉꢅꢆꢂ  
ꢉꢅꢂꢌ  
ꢉꢅꢂꢇ  
ꢉꢅꢂꢉ  
ꢉꢅꢁꢊ  
,287ꢀ ꢀꢁꢉꢉP$  
OPERATION  
R1122xx1A  
R1122xx1B  
3
1
3
1
VDD  
V
OUT  
V
DD  
VOUT  
_
+
_
+
R1  
R1  
R2  
Vref  
Vref  
R2  
GND  
GND  
CE  
Current Limit  
CE  
Current Limit  
2
2
4
4
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FRPSDUHGꢀZLWKꢀDꢀUHIHUHQFHꢀYROWDJHꢀE\ꢀWKHꢀHUURUꢀDPSOLILHUꢄꢀVRꢀWKDWꢀDꢀFRQVWDQWꢀYROWDJHꢀLVꢀRXWSXWꢅ  
$ꢀFXUUHQWꢀOLPLWꢀFLUFXLWꢀIRUꢀSURWHFWLRQꢀDWꢀVKRUWꢀPRGHꢄꢀDQGꢀDꢀFKLSꢀHQDEOHꢀFLUFXLWꢄꢀDUHꢀLQFOXGHGꢅ  
6
R1122N  
TEST CIRCUITS  
CE  
CE  
4
4
V
OUT  
VOUT  
V
DD  
V
DD  
IN  
IN  
OUT  
OUT  
R1122Nxx1B  
Series  
R1122Nxx1B  
Series  
3
3
1
1
IOUT  
ISS  
2
2
GND  
GND  
2.2µF  
2.2µF  
Fig.1 Standard test Circuit  
Fig.2 Supply Current Test Circuit  
CE  
4
CE  
4
VOUT  
VOUT  
V
DD  
V
DD  
IN  
IN  
OUT  
OUT  
R1122Nxx1B  
Series  
R1122Nxx1B  
Series  
3
3
1
1
I
OUT  
IOUT  
P.G  
2
2
GND  
GND  
I1  
I2  
2.2µF  
Fig.3 Ripple Rejection, Line Transient Response  
Test Circuit  
Fig.4 Load Transient Response Test Circuit  
7
R1122N  
TECHNICAL NOTES  
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3KDVHꢀ&RPSHQVDWLRQ  
,QꢀWKHVHꢀ,&VꢄꢀSKDVHꢀFRPSHQVDWLRQꢀLVꢀPDGHꢀIRUꢀVHFXULQJꢀVWDEOHꢀRSHUDWLRQꢀHYHQꢀLIꢀWKHꢀORDGꢀFXUUHQWꢀLVꢀYDULHGꢅꢀ)RUꢀWKLV  
SXUSRVHꢄꢀEHꢀVXUHꢀWRꢀXVHꢀDꢀFDSDFLWRUꢀ&287ꢀZLWKꢀJRRGꢀIUHTXHQF\ꢀFKDUDFWHULVWLFVꢀDQGꢀ(65ꢀ+(TXLYDOHQWꢀ6HULHVꢀ5HVLVWDQFHꢈꢅ  
+1RWHꢏꢀꢓKHQꢀWKHꢀDGGLWLRQDOꢀFHUDPLFꢀFDSDFLWRUVꢀDUHꢀFRQQHFWHGꢀWRꢀWKHꢀRXWSXWꢀSLQꢀZLWKꢀWKHꢀRXWSXWꢀFDSDFLWRUꢀIRUꢀSKDVH  
FRPSHQVDWLRQꢄꢀWKHꢀRSHUDWLRQꢀPLJKWꢀEHꢀXQVWDEOHꢅꢀ%HFDXVHꢀRIꢀWKLVꢄꢀWHVWꢀWKHVHꢀ,&VꢀZLWKꢀWKHꢀVDPHꢀH[WHUQDOꢀFRPSRQHQWVꢀDV  
WKHꢀRQHVꢀWRꢀEHꢀXVHGꢀRQꢀWKHꢀ3&%ꢅꢈ  
5HFRPPHQGHGꢀ&DSDFLWRUVꢎ *50ꢐꢉ;ꢇ5ꢂꢂꢇ.ꢔꢅꢆꢀ+0XUDWDꢈ  
*50ꢐꢉꢃꢉꢆꢐ;ꢇ5ꢆꢆꢇ.ꢔꢅꢆꢀ+0XUDWDꢈ  
*50ꢐꢉꢃꢉꢆꢐ;ꢇ5ꢐꢑꢇ.ꢔꢅꢆꢀ+0XUDWDꢈ  
3&%ꢀ/D\RXW  
0DNHꢀ9''ꢀDQGꢀ*1'ꢀOLQHVꢀVXIILFLHQWꢅꢀ,IꢀWKHLUꢀLPSHGDQFHꢀLVꢀKLJKꢄꢀSLFNLQJꢀXSꢀWKHꢀQRLVHꢀRUꢀXQVWDEOHꢀRSHUDWLRQꢀPD\ꢀUHꢃ  
VXOWꢅꢀ&RQQHFWꢀDꢀFDSDFLWRUꢀZLWKꢀDꢀFDSDFLWDQFHꢀRIꢀꢂꢅꢂµ)ꢀRUꢀPRUHꢀEHWZHHQꢀ9''ꢀDQGꢀ*1'ꢀSLQꢀDVꢀFORVHꢀDVꢀSRVVLEOHꢅ  
6HWꢀH[WHUQDOꢀFRPSRQHQWVꢄꢀHVSHFLDOO\ꢀRXWSXWꢀFDSDFLWRUꢀDVꢀFORVHꢀDVꢀSRVVLEOHꢀWRꢀWKHꢀ,&VꢀDQGꢀPDNHꢀZLULQJꢀDVꢀVKRUWꢀDV  
SRVVLEOHꢅ  
TYPICAL APPLICATION  
CE  
CE  
R1122Nxx1A  
Series  
R1122Nxx1B  
Series  
VOUT  
VOUT  
IN  
OUT  
IN  
OUT  
V
DD  
V
DD  
+
+
+
+
GND  
GND  
Cap.  
Cap.  
Cap.  
Cap.  
+([WHUQDOꢀ&RPSRQHQWVꢈ  
2XWSXWꢀ&DSDFLWRUꢎ &HUDPLFꢀꢂꢅꢂµ)ꢀ+6HWꢀRXWSXWꢀYROWDJHꢀLQꢀWKHꢀUDQJHꢀIURPꢀꢂꢅꢇꢀWRꢀꢇꢅꢉ9ꢈ  
&HUDPLFꢀꢐꢅꢑµ)ꢀ+6HWꢀRXWSXWꢀYROWDJHꢀLQꢀWKHꢀUDQJHꢀIURPꢀꢁꢅꢇꢀWRꢀꢂꢅꢇ9ꢈ  
,QSXWꢀ&DSDFLWRUꢎ &HUDPLFꢀꢂꢅꢂµ)  
8
R1122N  
TYPICAL CHARACTERISTICS  
1) Output Voltage vs. Output Current  
R1122N151B  
R1122N201B  
2.5  
2
1.8  
1.6  
1.4  
VIN=2.0V  
VIN=2.5V  
VIN=3.5V  
1.2  
1
V
IN=2.3V  
IN=2.5V  
IN=3.0V  
IN=4.0V  
1.5  
1
V
V
V
0.8  
0.6  
0.4  
0.5  
0
0.2  
0
0
100  
200  
300  
400  
500  
0
100  
200  
300  
400  
500  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
R1122N301B  
R1122N401B  
3.5  
3
5
4
3
2
1
0
2.5  
2
V
IN=3.3V  
IN=3.5V  
IN=4.0V  
IN=5.0V  
V
IN=4.3V  
IN=4.5V  
IN=5.0V  
IN=6.0V  
V
V
V
V
V
V
1.5  
1
0.5  
0
0
100  
200  
300  
400  
500  
0
100  
200  
300  
400  
500  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
R1122N501B  
6
5
4
3
2
1
0
V
IN=5.3V  
IN=5.5V  
IN=6.0V  
IN=7.0V  
V
V
V
0
100  
200  
300  
400  
500  
Output Current IOUT(mA)  
9
R1122N  
2) Output Voltage vs. Input Voltage  
R1122N151B  
R1122N201B  
1.600  
2.100  
2.000  
1.900  
1.800  
1.700  
1.600  
1.500  
1.500  
1.400  
1.300  
1.200  
1.100  
1.000  
I
I
I
OUT=1mA  
OUT=30mA  
OUT=50mA  
IOUT=1mA  
IOUT=30mA  
IOUT=50mA  
1
2
2
2
3
4
5
6
7
7
7
1
2
3
4
5
6
7
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R1122N301B  
R1122N401B  
3.100  
3.000  
2.900  
2.800  
2.700  
2.600  
2.500  
4.500  
4.000  
3.500  
3.000  
2.500  
I
I
I
OUT=1mA  
OUT=30mA  
OUT=50mA  
I
OUT=1mA  
OUT=30mA  
OUT=50mA  
I
I
3
4
5
6
2
3
4
5
6
7
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R1122N501B  
5.500  
5.000  
4.500  
4.000  
3.500  
3.000  
2.500  
I
OUT=1mA  
OUT=30mA  
OUT=50mA  
I
I
3
4
5
6
Input Voltage VIN(V)  
10  
R1122N  
3) Dropout Voltage vs. Output Current  
R1122N151B  
R1122N201B  
0.600  
0.600  
0.500  
0.400  
0.300  
0.200  
0.100  
0.000  
Topt=-40°C  
Topt=25°C  
Topt=85°C  
Topt=-40°C  
Topt=25°C  
Topt=85°C  
0.500  
0.400  
0.300  
0.200  
0.100  
0.000  
0
0
0
50  
100  
150  
150  
150  
0
50  
100  
150  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
R1122N301B  
R1122N401B  
0.600  
0.500  
0.400  
0.300  
0.200  
0.100  
0.000  
0.600  
0.500  
0.400  
0.300  
0.200  
0.100  
0.000  
Topt=-40°C  
Topt=25°C  
Topt=85°C  
Topt=-40°C  
Topt=25°C  
Topt=85°C  
50  
100  
0
50  
100  
150  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
R1122N501B  
0.600  
0.500  
0.400  
0.300  
0.200  
0.100  
0.000  
Topt=-40°C  
Topt=25°C  
Topt=85°C  
50  
100  
Output Current IOUT(mA)  
11  
R1122N  
4) Output Voltage vs. Temperature  
R1122N151A/B  
R1122N201B  
V
IN=2.5V CIN=1µF  
V
IN=3.0V CIN=1µF  
C
OUT=2.2µF IOUT=30mA  
C
OUT=2.2µF IOUT=30mA  
1.53  
1.52  
2.10  
2.08  
2.06  
2.04  
2.02  
2.00  
1.98  
1.96  
1.94  
1.92  
1.90  
1.51  
1.50  
1.49  
1.48  
1.47  
-50  
-50  
-50  
-25  
-25  
-25  
0
25  
100  
50  
75  
-50  
-25  
0
25  
100  
50  
75  
Temperature Topt (°C)  
Temperature Topt (°C)  
R1122N301A/B  
R1122N401A/B  
V
IN=5.0V CIN=1µF  
V
IN=4.0V CIN=1µF  
COUT=2.2µF IOUT=30mA  
C
OUT=2.2µF IOUT=30mA  
4.08  
4.06  
4.04  
4.02  
3.06  
3.04  
3.02  
3.00  
2.98  
4.00  
3.98  
3.96  
3.94  
2.96  
2.94  
3.92  
-50  
-25  
0
25  
100  
0
25  
100  
50  
75  
50  
75  
Temperature Topt (°C)  
Temperature Topt (°C)  
R1122N501A/B  
VIN=6.0V CIN=1µF  
COUT=2.2µF IOUT=30mA  
5.10  
5.08  
5.06  
5.04  
5.02  
5.00  
4.98  
4.96  
4.94  
4.92  
4.90  
0
25  
100  
50  
75  
Temperature Topt (°C)  
12  
R1122N  
5) Supply Current vs. Input Voltage  
R1122N151B  
R1122N201B  
120  
120  
100  
100  
80  
60  
40  
20  
0
80  
60  
40  
20  
0
1
1
1
2
2
2
3
4
5
6
6
6
7
7
7
1
2
3
4
5
6
7
Input Voltage VIN (V)  
Input Voltage VIN (V)  
R1122N301B  
R1122N401B  
120  
100  
120  
100  
80  
60  
40  
20  
0
80  
60  
40  
20  
0
3
4
5
1
2
3
4
5
6
7
Input Voltage VIN (V)  
Input Voltage VIN (V)  
R1122N501B  
120  
100  
80  
60  
40  
20  
0
3
4
5
Input Voltage VIN (V)  
13  
R1122N  
6) Supply Current vs. Temperature  
R1122N151A/B  
VIN=2.5V CIN=1µF  
COUT=2.2µF  
200  
150  
100  
50  
200  
150  
100  
50  
0
0
-50  
-25  
-25  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt (°C)  
Temperature Topt (°C)  
R1122N301A/B  
R1122N401A/B  
V
C
IN=4.0V CIN=1µF  
OUT=2.2µF  
V
IN=5.0V CIN=1µF  
COUT=2.2µF  
200  
150  
100  
50  
200  
150  
100  
50  
0
0
-50  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt (°C)  
Temperature Topt (°C)  
R1122N501A/B  
V
C
IN=6.0V CIN=1µF  
OUT=2.2µF  
200  
150  
100  
50  
0
-50  
0
25  
50  
75  
100  
Temperature Topt (°C)  
14  
R1122N  
7) Ripple Rejection vs. Frequency  
R1122N151A/B  
R1122N201A/B  
VIN=2.5V+0.5Vp-p  
V
IN=3.0V+0.5Vp-p  
COUT=2.2µF IOUT=30mA  
COUT=2.2µF IOUT=30mA  
90.00  
80.00  
90.00  
80.00  
70.00  
60.00  
50.00  
40.00  
30.00  
70.00  
60.00  
50.00  
40.00  
30.00  
20.00  
10.00  
0.00  
20.00  
10.00  
0.00  
0.1  
0.1  
0.1  
1
10  
100  
0.1  
1
10  
100  
Frequency Freq (kHz)  
Frequency Freq (kHz)  
R1122N301A/B  
R1122N401A/B  
V
IN=4.0V+0.5Vp-p  
OUT=2.2µF IOUT=30mA  
V
IN=5.0V+0.5Vp-p  
OUT=2.2µF IOUT=30mA  
C
C
90.00  
80.00  
90.00  
80.00  
70.00  
60.00  
50.00  
40.00  
30.00  
70.00  
60.00  
50.00  
40.00  
30.00  
20.00  
10.00  
0.00  
20.00  
10.00  
0.00  
1
10  
100  
0.1  
1
10  
100  
Frequency Freq (kHz)  
Frequency Freq (kHz)  
R1122N501A/B  
V
IN=6.0V+0.5Vp-p  
OUT=2.2µF IOUT=30mA  
C
90.00  
80.00  
70.00  
60.00  
50.00  
40.00  
30.00  
20.00  
10.00  
0.00  
1
10  
100  
Frequency Freq (kHz)  
15  
R1122N  
8) Ripple Rejection vs. Input Voltage (DC bias)  
R1122N301B  
R1122N301B  
C
OUT=Ceramic 2.2µF  
C
OUT=Ceramic 2.2µF  
IOUT=1mA  
IOUT=10mA  
90.00  
80.00  
90.00  
80.00  
70.00  
60.00  
50.00  
40.00  
30.00  
70.00  
60.00  
50.00  
40.00  
30.00  
f=400Hz  
f=1kHz  
f=10kHz  
f=400Hz  
f=1kHz  
f=10kHz  
20.00  
10.00  
0.00  
20.00  
10.00  
0.00  
3.10  
3.20  
3.30  
3.40  
3.50  
3.10  
3.20  
3.30  
3.40  
3.50  
Input Voltage VIN (V)  
Input Voltage VIN (V)  
R1122N301B  
C
OUT=Ceramic 2.2µF  
IOUT=50mA  
90.00  
80.00  
70.00  
60.00  
50.00  
40.00  
30.00  
f=400Hz  
f=1kHz  
f=10kHz  
20.00  
10.00  
0.00  
3.10  
3.20  
3.30  
3.40  
3.50  
Input Voltage VIN (V)  
9) Input Transient Response  
7RSW ꢂꢇ°&  
R1122N151B  
Tek Run : 2.50MS/s Average  
VIN  
1→  
2→  
9,1 ꢂꢅꢇ9↔ꢆꢅꢇ9  
VOUT  
,287 ꢆꢉP$  
&,1 QRQH  
&287 ꢂꢅꢂµ)  
WUꢍWI ꢇµV  
ChC1h1 1.00V  
Ch2 20.0mV M20.0µs  
16  
R1122N  
7RSW ꢂꢇ°&  
R1122N201B  
Tek Run : 2.50MS/s Average  
VIN  
1→  
2→  
9,1 ꢆꢅꢉ9↔ꢐꢅꢉ9  
V
OUT  
,287 ꢆꢉP$  
&,1 QRQH  
&287 ꢂꢅꢂµ)  
WUꢍWI ꢇµV  
Ch1 1.00V  
Ch2 20.0mV M20.0µs  
7RSW ꢂꢇ°&  
R1122N301B  
Tek Run : 2.50MS/s Average  
VIN  
1→  
2→  
9,1 ꢐꢅꢉ9↔ꢇꢅꢉ9  
,287 ꢆꢉP$  
&,1 QRQH  
VOUT  
&287 ꢂꢅꢂµ)  
WUꢍWI ꢇµV  
Ch1 1.00V  
Ch2 20.0mV M20.0µs  
7RSW ꢂꢇ°&  
R1122N401B  
Tek Run : 2.50MS/s Average  
VIN  
1→  
2→  
9,1 ꢇꢅꢉ9↔ꢔꢅꢉ9  
,287 ꢆꢉP$  
&,1 QRQH  
VOUT  
&287 ꢂꢅꢂµ)  
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