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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1601. | R1221N40XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.0V. 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 |
| 1602. | R1221N41XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.1V. 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 |
| 1603. | R1221N42XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.2V. 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 |
| 1604. | R1221N42XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.2V. 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 |
| 1605. | R1221N43XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.3V. 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 |
| 1606. | R1221N43XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.3V. 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 |
| 1607. | 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 |
| 1608. | 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 |
| 1609. | R1221N45XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.5V. 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 |
| 1610. | R1221N45XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.5V. 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 |
| 1611. | R1221N45XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.5V. 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 |
| 1612. | R1221N46XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.6V. 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 |
| 1613. | R1221N46XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.6V. 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 |
| 1614. | R1221N46XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.6V. 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 |
| 1615. | R1221N47XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.7V. 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 |
| 1616. | R1221N47XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.7V. 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 |
| 1617. | R1221N48XF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.8V. 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 |
| 1618. | R1221N48XG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.8V. 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 |
| 1619. | R1221N49XF-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 | SOT-23 | 6 | -40°C | 85°C | 218K |
| 1620. | 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 | SOT-23 | 6 | -40°C | 85°C | 218K |
