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R1172N331B Datasheet(PDF) 2 Page - RICOH electronics devices division |
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R1172N331B Datasheet(HTML) 2 Page - RICOH electronics devices division |
2 / 36 page R1172x 2 BLOCK DIAGRAMS R1172xxx1A VDD GND VOUT Vref Current Limit Thermal Shutdown CE R1172xxx1B VDD GND VOUT CE Vref Current Limit Thermal Shutdown R1172xxx1D VDD GND VOUT CE Vref Current Limit Thermal Shutdown SELECTION GUIDE The output voltage, auto discharge function*, and the package type for the ICs can be selected at the user’s request. The selection can be made with designating the part number as shown below; R1172xxx1x-xx-x ←Part Number ↑ ↑ ↑ ↑ ↑ a b c d e Code Contents a Designation of Package Type; N: SOT-23-5, H: SOT-89-5, D: HSON-6, S: HSOP-6J b Setting Output Voltage (VOUT); Stepwise setting with a step of 0.1V in the range of 0.8V to 5.0V (HSOP-6J : 0.8V to 3.5V) is possible. Exceptions; 1.85V output: R1172x181x5-xx-x, 2.85V output: R1172x281x5-xx-x c Designation of option; A: active low, without auto discharge function* B: active high, without auto discharge function* D: active high, with auto discharge function* d Designation of Taping Type; T1 (SOT-89-5), TR (SOT-23-5, HSON-6), E2 (HSOP-6J) Refer to Taping Specifications. e Designation of composition of pin plating; -F: Lead free plating *) When the mode is into standby with CE signal, auto discharge transistor turns on, and it makes the turn-off speed faster than normal type. |
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