RT9179A Ver la hoja de datos (PDF) - Richtek Technology
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RT9179A Datasheet PDF : 11 Pages
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RT9179A
Absolute Maximum Ratings (Note 1)
Supply Input Voltage ------------------------------------------------------------------------------------------------- 6V
Power Dissipation, PD @ TA = 25°C, TJ = 125°C
SOP-8 -------------------------------------------------------------------------------------------------------------------- 1.67W
Package Thermal Resistance (Note 7)
SOP-8, θJA -------------------------------------------------------------------------------------------------------------- 60°C/W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260°C
Junction Temperature ------------------------------------------------------------------------------------------------ 150°C
Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
Supply Input Voltage ------------------------------------------------------------------------------------------------- 3V to 5.5V
Enable Input Voltage ------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range --------------------------------------------------------------------------------------- −40°C to 125°C
Electrical Characteristics
(VIN = VOUT + 0.7V, IOUT = 10μA, CIN = 1μF, COUT = 3.3μF (Ceramic), TA = 25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Reference Voltage Tolerance
VREF
1.163 1.175 1.187 V
Adjust Pin Current
IADJ
--
--
10
nA
Output Voltage Range
VOUT
1.175 --
4.5
V
Quiescent Current (Note 5)
IQ
Enabled, IOUT = 0mA
--
150
--
μA
Standby Current (Note 6)
ISTBY
VIN = 5.5V, Shutdown
--
--
1
μA
Current Limit
ILIM
700
--
--
mA
Dropout Voltage (Note 4)
Line Regulation
Thermal Shutdown Temperature
VDROP
IOUT = 10mA
IOUT = 500mA
--
10
--
mV
--
400
--
ΔVLINE
VOUT + 0.7V < VIN < 5.5V &
3.3V < VIN < 5.5V
--
0.001
--
%/V
TSD
--
170
--
°C
Thermal Shutdown Hysteresis
ΔTSD
--
40
--
°C
EN Threshold
Logic-Low Voltage VIL
Logic-High Voltage VIH
VIN = 3.3V, Shutdown
VIN = 3.3V, Enable
--
--
0.4
V
2.0
--
--
EN Current
IEN
VIN = VCE = 5.5V
--
--
10
nA
DS9179A-07 March 2007
www.richtek.com
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