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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. | R1111N171A-TL | Low noise 150mA LDO regulator. Output voltage 1.7V. "L" active type. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 140K |
| 2. | R1111N171A-TR | Low noise 150mA LDO regulator. Output voltage 1.7V. "L" active type. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 140K |
| 3. | R1111N171B-TL | Low noise 150mA LDO regulator. Output voltage 1.7V. "H" active type. Taping specification TL | RICOH | SOT-23 | 5 | -40°C | 85°C | 140K |
| 4. | R1111N171B-TR | Low noise 150mA LDO regulator. Output voltage 1.7V. "H" active type. Standard taping specification TR | RICOH | SOT-23 | 5 | -40°C | 85°C | 140K |
| 5. | R1121N171A-TL | Low noise 150mA LDO regulator. Output voltage 1.7V. Active L type. Taping specification TL. | RICOH | SOT-23 | 5 | -40°C | 85°C | 135K |
| 6. | R1121N171A-TR | Low noise 150mA LDO regulator. Output voltage 1.7V. Active L type. Standard taping specification TR. | RICOH | SOT-23 | 5 | -40°C | 85°C | 135K |
| 7. | R1121N171B-TL | Low noise 150mA LDO regulator. Output voltage 1.7V. Active H type. Taping specification TL. | RICOH | SOT-23 | 5 | -40°C | 85°C | 135K |
| 8. | R1121N171B-TR | Low noise 150mA LDO regulator. Output voltage 1.7V. Active H type. Standard taping specification TR. | RICOH | SOT-23 | 5 | -40°C | 85°C | 135K |
| 9. | R1221N17AA-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 10. | R1221N17AB-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 11. | R1221N17AD-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 12. | R1221N17AE-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 13. | R1221N17AF-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 14. | R1221N17AG-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 300kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 15. | R1221N17AH-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. Detector threshold (-Vdet) 3.0V. Oscillator frequency 500kHz | RICOH | SOT-23 | 6 | -40°C | 85°C | 218K |
| 16. | R1221N17XA-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. 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 |
| 17. | R1221N17XB-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. 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 |
| 18. | R1221N17XC-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. 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 |
| 19. | R1221N17XD-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. 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 |
| 20. | R1221N17XE-TR | Step-down DC/DC converter with voltage detector. Output voltage (Vout) 1.7V. 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 |
