
RT9011
Preliminary
4
DS9011-05   August  2007
www.richtek.com
Electrical Characteristics
(V
IN
= V
OUT 
+ 1V, V
EN 
= V
IN
, C
IN
= C
OUT 
= 1
μ
F, T
A 
= 25
°
C, unless otherwise specified.)
Parameter 
Symbol 
Test Conditions 
Min 
Typ 
Max 
Units 
Input Voltage 
V
IN
V
IN 
= 2.5V to 5.5V 
2.5 
-- 
5.5 
V 
Dropout Voltage   (Note 5) 
V
DROP
 I
OUT
 = 300mA 
-- 
240 
330 
mV 
Output voltage range 
V
OUT
Δ
V 
1.2 
-- 
3.6 
V 
V
OUT
 Accuracy 
I
OUT 
= 1mA 
-2 
-- 
+2 
% 
Line Regulation    
Δ
V
LINE
V
IN
 = (V
OUT
 + 0.3V) to 5.5V or 
V
IN 
> 2.5V, whichever is larger 
-- 
-- 
0.2 
%/V 
Load Regulation 
Δ
V
LOAD
 1mA < I
OUT
< 300mA 
R
LOAD
= 1
-- 
-- 
0.6 
% 
Current Limit   
330 
450 
700 
mA 
Quiescent Current 
I
Q
V
EN
 > 1.5V 
-- 
58 
80 
μ
A 
Shutdown Current 
I
Q_SD
V
EN
 < 0.4V 
-- 
-- 
1 
μ
A 
V
IH
V
IN 
= 2.5V to 5.5V, Power On 
1.5 
-- 
-- 
EN Threshold 
V
IL
V
IN 
= 2.5V to 5.5V, Shutdown 
-- 
-- 
0.4 
V 
Output Voltage TC 
-- 
100 
-- 
ppm/
°
C 
Thermal Shutdown 
T
SD
Δ
T
SD
-- 
170 
-- 
°
C 
Thermal Shutdown Hysteresis 
-- 
40 
-- 
°
C 
To be continued
Recommended Operating Conditions   
(Note 3)
z
 Supply Input Voltage------------------------------------------------------------------------------------------------------ 2.5V to 5.5V
z
 Enable Input Voltage------------------------------------------------------------------------------------------------------ 0V to 5.5V
z
 Junction Temperature Range--------------------------------------------------------------------------------------------
 
40
°
C to 125
°
C
z
 Ambient Temperature Range--------------------------------------------------------------------------------------------
 
40
°
C to 85
°
C
Absolute Maximum Rating
s 
  (Note 1)
z
 Supply Input Voltage------------------------------------------------------------------------------------------------------ 6V
z
 Other I/O Pin Voltages ---------------------------------------------------------------------------------------------------
 6V
z
 Power Dissipation, P
D
 @ T
A
= 25
°
C
   TSOT23-6 ------------------------------------------------------------------------------------------------------------------- 0.455W
WDFN-6
L 2x2 -------------------------------------------------------------------------------------------------------------- 0.606W
z
 Package Thermal Resistance   (Note 4)
TSOT23-6
, 
θ
JA
-------------------------------------------------------------------------------------------------------------- 220
°
C/W
WDFN-6
L 2x2
, 
θ
JA
--------------------------------------------------------------------------------------------------------- 165
°
C/W
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