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R1223N152A-TR Datasheet(PDF) 2 Page - RICOH electronics devices division |
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R1223N152A-TR Datasheet(HTML) 2 Page - RICOH electronics devices division |
2 / 19 page 12345 Rev. 1.11 - 2 - n n n n BLOCK DIAGRAM OSC VIN EXT GND VOUT Vref CE Chip Enable Soft Start Protection PWM/VFM CONTROL n n n n SELECTION GUIDE In the R1223N Series, the output voltage, the oscillator frequency, the optional function, and the taping type for the ICs can be selected at the user ’s request. The selection can be made by designating the part number as shown below; R1223NXXXX-XX - - - - a b c d Code Contents a Setting Output Voltage(VOUT): Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible. b Designation of Oscillator Frequency 2 : fixed c Designation of Optional Function A : 300kHz, with a PWM/VFM alternative circuit, Latch-type protection B : 500 kHz, with a PWM/VFM alternative circuit, Latch-type protection C : 300kHz, without a PWM/VFM alternative circuit, Latch-type protection D : 500kHz, without a PWM/VFM alternative circuit, Latch-type protection E : 300kHz, with a PWM/VFM alternative circuit, Reset-type protection F : 500 kHz, with a PWM/VFM alternative circuit, Reset-type protection G : 300kHz, without a PWM/VFM alternative circuit, Reset-type protection H : 500kHz, without a PWM/VFM alternative circuit, Reset-type protection d Designation of Taping Type; Ex. :TR,TL(refer to Taping Specification) ”TR” is prescribed as a standard. |
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