RT9018A/B
Absolute Maximum Ratings (Note 1)
z Supply Voltage, VIN --------------------------------------------------------------------------------------------------- 1V to 6V
z Control Voltage, VDD -------------------------------------------------------------------------------------------------- 3V to 6V
z Output Voltage, VOUT ------------------------------------------------------------------------------------------------- 0.8 to 6V
z Power Dissipation, PD @ TA = 25°C
SOP-8 (Exposed Pad) ----------------------------------------------------------------------------------------------- 1.33W
WDFN-10L 3x3 --------------------------------------------------------------------------------------------------------- 1.67W
z Package Thermal Resistance (Note 4)
SOP-8 (Exposed Pad), θJA ------------------------------------------------------------------------------------------ 75°C/W
SOP-8 (Exposed Pad), θJC ----------------------------------------------------------------------------------------- 15°C/W
WDFN-10L 3x3, θJA --------------------------------------------------------------------------------------------------- 60°C/W
z Junction Temperature ------------------------------------------------------------------------------------------------- 150°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) ------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
z Supply Voltage, VIN --------------------------------------------------------------------------------------------------- 1.4V to 5.5V
z Control Voltage, VDD -------------------------------------------------------------------------------------------------- 3.6V to 5.5V
z Junction Temperature Range---------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range---------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN = VOUT + 500mV, VEN = VDD = 5V, CIN = COUT = 10uF, TA = TJ = 25°C, unless otherwise specified)
Parameter
VDD Operation Voltage Range
POR Threshold
Symbol
Test Conditions
Min
3.6
Typ
--
Max Units
V
V
Input Range
5.5
3
V
V
V
V
V
%
DD
DD
2.4
2.7
0.2
0.2
0.8
0
POR Hysteresis
0.15
--
--
Adjustable Pin Threshold
V
I
I
= 1mA
= 1mA
0.4
0.812
+1.5
TH_ADJ
ADJ
OUT
Reference Voltage (ADJ Pin Voltage) V
0.788
−1.5
OUT
Fixed Output Voltage Range
ΔV
OUT
V
= V
= 1mA
+ 0.5V to 5V,
+ 1V,
IN
OUT
Line Regulation (V )
ΔV
--
0.2
0.2
0.6
1
%
%
IN
LINE_IN
I
OUT
V
IN
= V
OUT
= 1mA to 3A
Load Regulation
(Note 7)
ΔV
--
LOAD
I
I
I
OUT
= 2A
--
--
--
150
210
0.6
250
350
1.2
mV
mV
mA
OUT
OUT
Dropout Voltage (Note 5)
V
DROP
= 3A
Quiescent Current (Note 6)
Current Limit
I
I
V
DD
= 5.5V
Q
3.2
0.5
--
4.5
1.8
0.6
150
--
--
--
--
A
A
A
Ω
LIM
Short Circuit Current
In-rush Current
V
OUT
< 0.2V
C
V
= 10uF, Enable Start-up
OUT
V
OUT
Pull Low Resistance
= 0V
--
EN
To be continued
DS9018A/B-04 September 2007
www.richtek.com
3
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