RT9703 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT9703 Datasheet PDF : 14 Pages
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RT9703
Absolute Maximum Ratings (Note 1)
z Supply Voltage --------------------------------------------------------------------------------------------------------- 6.5V
z Chip Enable Input Voltage ------------------------------------------------------------------------------------------- −0.3V to 6.5V
z Flag Voltage ------------------------------------------------------------------------------------------------------------ 6.5V
z Power Dissipation, PD @ TA = 25°C
SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.95W
z Package Thermal Resistance
SOP-8, θJA -------------------------------------------------------------------------------------------------------------- 104°C/W
z Junction Temperature ------------------------------------------------------------------------------------------------- 125°C
z Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C
z Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 150°°C
z ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 8kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------- 800V
Recommended Operating Conditions (Note 3)
z Supply Input Voltage -------------------------------------------------------------------------------------------------- 2V to 5.5V
z Chip Enable Input Voltage ------------------------------------------------------------------------------------------- 0V to 5.5V
z Junction Temperature Range ---------------------------------------------------------------------------------------- −20°C to 100°C
Electrical Characteristics
(VIN = 5V, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Switch On Resistance
RDS(ON) IOUT = 3A (Note 8)
--
Supply Current
ISW_ON Switch On, VOUT = Open
--
ISW_OFF Switch Off, VOUT = Open
--
CE Threshold Logic-Low Voltage VIL
Switch Off
--
(Note 7)
Logic-High Voltage VIH
Switch On
2.0
CE Input Current
ICE
VCE = 0V to 5.5V
--
Output Leakage Current
ILEAKAGE VCE = 0V, RLOAD = 0Ω
--
Output Turn-On Rise Time
TON_RISE 10% to 90% of VOUT rising
--
Current Limit Factor (Note 5)
ILIM x RSET
--
Max. Current Limit Setting (Note 6) ILIMSET VIN = 3.3V to 5.5V, RSET = 60kΩ
--
Current Limit Setting Accuracy
ΔILIMSET
ILIMSET = 0.5A to 3A
(RSET = 420kΩ to 70kΩ)
−20
FLAG Output Resistance
RFLG
ISINK = 1mA
--
FLAG Off Current
FLAG Delay Time (Note 4)
Under-Voltage Lockout
IFLG_OFF VFLG = 5V
--
tD
Form fault condition to FLG assertion 2
VUVLO
VIN increasing
1.3
Under-Voltage Hysteresis
ΔVUVLO VIN decreasing
--
Typ
80
30
0.1
--
--
0
0.5
1.5
210k
--
Max Units
100 mΩ
50
μA
1
0.8 V
-- V
-- μA
10 μA
-- ms
-- A Ω
3.5 A
-- +20 %
15 400 Ω
0.01 1 μA
4.6 8 ms
1.7 -- V
0.1 -- V
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DS9703-08 March 2007
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