| No. |
Part Name |
Description |
Manufacturer |
| 1981 |
R1221N49XG-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.9V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz |
Ricoh |
| 1982 |
R1221N49XH-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.9V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz |
Ricoh |
| 1983 |
R1221N50AB-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz |
Ricoh |
| 1984 |
R1221N50XA-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz |
Ricoh |
| 1985 |
R1221N50XB-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz |
Ricoh |
| 1986 |
R1221N50XC-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz |
Ricoh |
| 1987 |
R1221N50XD-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz |
Ricoh |
| 1988 |
R1221N50XE-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz |
Ricoh |
| 1989 |
R1221N50XF-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz |
Ricoh |
| 1990 |
R1221N50XG-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz |
Ricoh |
| 1991 |
R1221N50XH-TR |
Step-down DC/DC converter with voltage detector. Output voltage (Vout) 5.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz |
Ricoh |
| 1992 |
R1223N152A-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 300kHz. Taping specification TL |
Ricoh |
| 1993 |
R1223N152B-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 500kHz. Taping specification TL |
Ricoh |
| 1994 |
R1223N152B-TR |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 500kHz. Standard taping specification TR |
Ricoh |
| 1995 |
R1223N152C-TL |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 300kHz. Taping specification TL |
Ricoh |
| 1996 |
R1223N152D-TL |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 500kHz. Taping specification TL |
Ricoh |
| 1997 |
R1223N152E-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 300kHz. Reset-type protection. Taping specification TL |
Ricoh |
| 1998 |
R1223N152F-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 500kHz. Reset-type protection. Taping specification TL |
Ricoh |
| 1999 |
R1223N152G-TL |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 300kHz. Reset-type protection. Taping specification TL |
Ricoh |
| 2000 |
R1223N152H-TL |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.5V. Oscillator frequency 500kHz. Reset-type protection. Taping specification TL |
Ricoh |
| 2001 |
R1223N162A-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 300kHz. Taping specification TL |
Ricoh |
| 2002 |
R1223N162A-TR |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 300kHz. Standard taping specification TR |
Ricoh |
| 2003 |
R1223N162B-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 500kHz. Taping specification TL |
Ricoh |
| 2004 |
R1223N162B-TR |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 500kHz. Standard taping specification TR |
Ricoh |
| 2005 |
R1223N162C-TL |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 300kHz. Taping specification TL |
Ricoh |
| 2006 |
R1223N162C-TR |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 300kHz. Standard taping specification TR |
Ricoh |
| 2007 |
R1223N162D-TL |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 500kHz. Taping specification TL |
Ricoh |
| 2008 |
R1223N162D-TR |
Step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 500kHz. Standard taping specification TR |
Ricoh |
| 2009 |
R1223N162E-TL |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 300kHz. Reset-type protection. Taping specification TL |
Ricoh |
| 2010 |
R1223N162E-TR |
PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 1.6V. Oscillator frequency 300kHz. Standard taping specification TR |
Ricoh |
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