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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 201. | R1221N30XE-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 3.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 202. | R1221N30XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 3.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 203. | R1221N30XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 3.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 204. | R1221N30XH-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 3.0V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 205. | R1223N302A-TL | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 206. | R1223N302A-TR | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 207. | R1223N302B-TL | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 208. | R1223N302B-TR | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 209. | R1223N302C-TL | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 210. | R1223N302C-TR | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 211. | R1223N302D-TL | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 212. | R1223N302D-TR | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 213. | R1223N302E-TL | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Reset-type protection. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 214. | R1223N302F-TL | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Reset-type protection. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 215. | R1223N302F-TR | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 216. | R1223N302G-TL | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Reset-type protection. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 217. | R1223N302G-TR | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 300kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 218. | R1223N302H-TL | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Reset-type protection. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 219. | R1223N302H-TR | Step-down DC/DC converter with low supply current by CMOS. Output voltage 3.0V. Oscillator frequency 500kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 220. | R3111N301A-TR | Low voltage detector. Detector threshold (-Vdet) 3.0V. Output type: Nch open drain. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 205K |
