RT8869A Datasheet, PDF (10/19 Pages) Richtek Technology Corporation – Advanced 2/1-Phase PWM Controller for CPU Core Power

RT8869A
Parameter
Protection
Total Current Protection
Threshold
Over Voltage Threshold
Under Voltage Threshold
Over Temperature
Protection Threshold
Over Temperature
Protection Hysteresis
Output Pin Capability
VR_HOT Sinking
Capability
VR_RDY Sinking
Capability
Symbol
Test Conditions
V_{IMA X}
V_OVP
V_UVP
V_FB − V_EAP
V_FB − V_EAP
(Note 5)
V_{VR_HOT} I_{VR_HOT} = 4mA
V_{VR_RDY} I_{VR_RDY} = 4mA
Min Typ Max Unit
1.1 1.2 1.3 V
350 390 430 mV
−380 −300 −250 mV
145 150 175 °C
--
20
--
°C
-- 0.05 0.2 V
-- 0.05 0.2 V
VR_SHDN Sinking
Capability
V_{VR_SHDN} I_{VR_SHDN} = 4mA
-- 0.05 0.2 V
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
Note 2. θJA is measured in natural convection at TA = 25°C on a high-effective thermal conductivity four-layer test board of
JEDEC 51-7 thermal measurement standard. The measurement case position of θJC is on 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.
Note 5. Guaranteed by Design.
www.richtek.com
10
DS8869A-00 May 2011