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DS6550A Datasheet, PDF (4/16 Pages) Richtek Technology Corporation – Synchronous DC-DC Step-Down Controller with 5V LDO
RT6550A
Absolute Maximum Ratings (Note 1)
 VIN to GND --------------------------------------------------------------------------------------------------------- −0.3V to 30V
 BOOT to GND
DC -------------------------------------------------------------------------------------------------------------------- −0.3V to 36V
<100ns -------------------------------------------------------------------------------------------------------------- −5V to 42V
 BOOT to PHASE
DC -------------------------------------------------------------------------------------------------------------------- −0.3V to 6V
<100ns -------------------------------------------------------------------------------------------------------------- −5V to 7.5V
 PHASE to GND
DC -------------------------------------------------------------------------------------------------------------------- −5V to 30V
<100ns -------------------------------------------------------------------------------------------------------------- −10V to 42V
 UGATE to GND
DC -------------------------------------------------------------------------------------------------------------------- −5V to 36V
<100ns -------------------------------------------------------------------------------------------------------------- −10V to 42V
 UGATE to PHASE
DC -------------------------------------------------------------------------------------------------------------------- −0.3V to 6V
<100ns -------------------------------------------------------------------------------------------------------------- −5V to 7.5V
 LGATE to GND
DC -------------------------------------------------------------------------------------------------------------------- −0.3V to 6V
<100ns -------------------------------------------------------------------------------------------------------------- −5V to 7.5V
 Other Pins ---------------------------------------------------------------------------------------------------------- −0.3V to 6.5V
 Power Dissipation, PD @ TA = 25°C
WDFN-10L 3x3 ---------------------------------------------------------------------------------------------------- 3.27W
 Package Thermal Resistance (Note 2)
WDFN-10L 3x3, θJA ---------------------------------------------------------------------------------------------- 30.5°C/W
WDFN-10L 3x3, θJC ---------------------------------------------------------------------------------------------- 7.5°C/W
 Junction Temperature -------------------------------------------------------------------------------------------- 150°C
 Lead Temperature (Soldering, 10 sec.) ---------------------------------------------------------------------- 260°C
 Storage Temperature Range ----------------------------------------------------------------------------------- −65°C to 150°C
 ESD Susceptibility (Note 3)
HBM (Human Body Model) ------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions (Note 4)
 Supply Voltage, VIN --------------------------------------------------------------------------------------------- 5V to 25V
 Junction Temperature Range ----------------------------------------------------------------------------------- −40°C to 125°C
 Ambient Temperature Range ----------------------------------------------------------------------------------- −40°C to 85°C
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DS6550A-00 September 2016