RT8065 Datasheet, PDF (5/13 Pages) Richtek Technology Corporation – 3A, 2MHz, Synchronous Step-Down Converter

RT8065
Parameter
Symbol
Test Conditions
Switch On-Resistance, High R_{DS(ON)_P} I_LX = 0.5A
Switch On-Resistance, Low
Peak Current Limit
Under Voltage Lockout
Threshold
R_{DS(ON)_N}
I_LIM
I_LX = 0.5A
V_IN Rising
V_IN Falling
RT Shutdown Threshold
V_RT
Soft-Start Period
t_SS
PGOOD Trip Threshold
V_RT Rising
C_SS = 10nF
Min
Typ
Max Unit
--
120
180
mΩ
--
80
120
mΩ
3.6
4.5
--
A
--
2.4
--
2.2
--
V
--
-- V_IN − 0.7 V_IN − 0.4 V
--
800
--
μs
--
87.5
-- %V_OUT
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2. θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
measured at the exposed pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8065-07 November 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5