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R1232D251B Datasheet(PDF) 4 Page - RICOH electronics devices division |
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R1232D251B Datasheet(HTML) 4 Page - RICOH electronics devices division |
4 / 24 page R1232D 4 PIN CONFIGURATION SON-8 8 7 6 5 1 2 3 4 5 678 4 321 ∗ ∗ ∗ Bottom View Top View PIN DESCRIPTIONS Pin No Symbol Pin Description 1 PGND Ground Pin 2 VIN Voltage Supply Pin 3 VDD Voltage Supply Pin 4 CE Chip Enable Pin (active with "H") 5 VOUT/VFB Output/Feedback Pin 6 TEST Test Pin (Forced to the "L" or GND level.) 7 AGND Ground Pin 8 LX LX Switching Pin (CMOS Output) ∗ Tab in the parts have GND level. (They are connected to the reverse side of this IC.) Do not connect to other wires or land patterns. ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN VIN Supply Voltage 6.5 V VDD VDD Pin Voltage 6.5 V VLX LX Pin Voltage −0.3 to VIN + 0.3 V VCE CE Pin Input Voltage −0.3 to VIN + 0.3 V VTEST TEST Pin Input Voltage −0.3 to VIN + 0.3 V VFB VFB Pin Input Voltage −0.3 to VIN + 0.3 V ILX LX Pin Output Current ±1.5 V PD Power Dissipation (SON-8)* 1 480 mW Topt Operating Temperature Range −40 to 85 °C Tstg Storage Temperature Range −55 to 125 °C ∗1) For the power dissipation, refer to the package information on the website. |
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