RT9027A 查看數據表（PDF） - Unspecified
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RT9027A Datasheet PDF : 12 Pages
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RT9027A/B
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 6V
z EN, FON, VSET Voltage ------------------------------------------------------------------------------------------------ 6V
z Power Dissipation, PD @ TA = 25°C
SOP-8 ------------------------------------------------------------------------------------------------------------------------ 1.053W
z Package Thermal Resistance (Note 4)
SOP-8, θJA ------------------------------------------------------------------------------------------------------------------ 95°C/W
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 2)
HBM -------------------------------------------------------------------------------------------------------------------------- 2kV
MM ---------------------------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 4.5V to 5.5V
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VSET = 2V, VIN = 5V, IOUT = 0.5A, CIN = COUT = 2.2uF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Input Voltage
Input Voltage Range
VI N
4.5
--
5.5
V
Quiescent Current
IQ
IOUT = 0A
-- 300 --
uA
Shutdown
Current
RT9027A
RT9027B
ISHDN
VSET = 0V
VEN = 0V
--
10
---
uA
--
10
--
Output Voltage
V OU T/V SE T
1.552 1.6 1.648 V
Line Regulation
Load Regulation
RON
Current Limit
Short Current
VIN UVLO Threshold
VIN UVLO Hysteresis
VSET UVLO Threshold
VSET UVLO Hysteresis
ΔVLINE
ΔVLOAD
--
0.2 0.5
%
--
0.2 0.8
IOUT = 0.5A, VIN = 5V, VSET = 3.3V --
0.15 0.3
Ω
ILIM
1.6
2
3.5
A
ISC
--
1.1
--
A
Rising
--
2.5
--
V
--
0.7
--
Rising
--
0.8
--
V
--
0.1
--
To be continued
DS9027A/B-01 October 2008
Downloaded from Elcodis.com electronic components distributor
www.richtek.com
3
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