RT9277B 데이터 시트보기 (PDF) - Richtek Technology
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RT9277B Datasheet PDF : 12 Pages
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RT9277A/B
Preliminary
Parameter
Feedback Voltage Line
Regulation
MOSFET
On Resistance of MOSFET
Current Limitation
Enable Control Input
Input Low Voltage
Input High Voltage
Hysteresis
Protection Function
Over Temperature Protection
Hysteresis
Symbol
Test Condition
VCOMP = 1.24V,
2.5V < VIN < 5.5V
RDS(ON)
VIL
2.5V ＜ VIN ＜ 5.5V
VIH
2.5V ＜ VIN ＜ 5.5V
Min
Typ
Max Units
--
0.05 0.15 %/V
--
200
500
mΩ
1.2
1.6
--
A
--
-- 0.3 x VIN V
0.7 x VIN --
--
V
--
0.1
--
V
--
170
--
°C
--
20
--
°C
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. Devices are ESD sensitive. Handling precaution recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θJA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
www.richtek.com
6
DS9277A/B-02 March 2007
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