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RT2875BQGCP Datasheet(PDF) 2 Page - Richtek Technology Corporation |
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RT2875BQGCP Datasheet(HTML) 2 Page - Richtek Technology Corporation |
2 / 16 page RT2875A/B 2 DS2875A/B-05 October 2016 www.richtek.com © Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Functional Pin Description Pin No. Pin Name Pin Function 1, 2 SW Switch Node. Connect to external L-C filter. 3, 15 (Exposed Pad) PGND Power Ground. The exposed pad must be soldered to a large PCB and connected to PGND for maximum power dissipation. 4 RT/SYNC Oscillator Resistor and External Frequency Synchronization Input. Must connect a resistor from this pin to GND to set the switching frequency. If SYNC clock is requested, connect an external clock to change the switching frequency. 5 AGND Analog Ground. 6 RLIM Current Limit Setting. Connect a resistor from this pin to GND to set the current limit value. 7 FB Feedback Voltage Input. The pin is used to set the output voltage of the converter to regulate to the desired via a resistive divider. Feedback reference = 0.6V. 8 COMP Compensation Node. COMP is used to compensate the regulation control loop. Connect a series RC network from COMP to GND. In some cases, an additional capacitor from COMP to GND is required. 9 SS Soft-Start Time Setting. Connect a capacitor from SS to GND to set the soft-start period. 10 EN Enable Control Input. High = Enable. 11 PGOOD Power Good Indicator Output. 12, 13 VIN Power Input. Support 4.5V to 36V input voltage. Must bypass with a suitable large ceramic capacitor at this pin. 14 BOOT Bootstrap Supply for High-Side Gate Driver. Connect a 0.1 F ceramic capacitor between the BOOT and SW pins. Ordering Information Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Package Type CP: TSSOP-14 (Exposed Pad) RT2875A/B Lead Plating System G : Green (Halogen Free and Pb Free) AQ : Latched UVP BQ : Hiccup Mode UVP Marking Information RT2875BQ GCPYMDNN RT2875BQGCP : Product Number YMDNN : Date Code RT2875AQ GCPYMDNN RT2875AQGCP : Product Number YMDNN : Date Code RT2875AQGCP RT2875BQGCP |
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