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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 161. | R1121N441B-TL | Low noise 150mA LDO regulator. Output voltage 4.4V. Active H type. Taping specification TL. | RICOH | SOT-23 | 5 | -40°C | 85°C | 135K |
| 162. | R1121N441B-TL | Low noise 150mA LDO regulator. Output voltage 4.4V. Active H type. Taping specification TL. | RICOH | SOT-23 | 5 | -40°C | 85°C | 135K |
| 163. | R1221N44AA-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 164. | R1221N44AB-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 165. | R1221N44AC-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 166. | R1221N44AD-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 167. | R1221N44AE-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 168. | R1221N44AF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 169. | R1221N44AG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 170. | R1221N44AH-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 171. | R1221N44XA-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. 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 |
| 172. | R1221N44XC-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. 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 |
| 173. | R1221N44XE-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. 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 |
| 174. | R1221N44XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. 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 |
| 175. | R1221N44XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. 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 |
| 176. | R1221N44XH-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. 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 |
| 177. | R1223N442A-TR | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 4.4V. Oscillator frequency 300kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 178. | R1223N442B-TR | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 4.4V. Oscillator frequency 500kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 179. | R1223N442C-TR | Step-down DC/DC converter with low supply current by CMOS. Output voltage 4.4V. Oscillator frequency 300kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 180. | R1223N442D-TR | Step-down DC/DC converter with low supply current by CMOS. Output voltage 4.4V. Oscillator frequency 500kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
| 181. | R1223N442E-TR | PWM/VFM step-down DC/DC converter with low supply current by CMOS. Output voltage 4.4V. Oscillator frequency 300kHz. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 207K |
