RT8055 데이터 시트보기 (PDF) - Richtek Technology
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RT8055 Datasheet PDF : 14 Pages
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RT8055
Parameter
Symbol
Test Conditions
Switching Frequency
ROSC = 180kΩ
Adjustable Switching Frequency
Range
Switch On Resistance, High
Switch On Resistance, Low
Peak Current Limit
Under Voltage Lockout
Threshold (Note 5)
Shutdown Threshold
RDS(ON)_P ISW = 0.3A
RDS(ON)_N ISW = 0.3A
ILIM
VDD Rising @Full Temperature
VDD Falling @Full Temperature
VSHDN
VSHDN Rising
Min
Typ
1.44
1.8
0.3
--
Max
2.16
2
Unit
MHz
--
100
160 mΩ
--
100
170 mΩ
3.5
--
--
A
2.33
2.4
1.98
2.2
2.57
V
2.37
-- VIN − 0.85 VIN − 0.4 V
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.
Note 5. Guaranteed by design.
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8055-05 November 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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