RT9266 RICHTEK [Richtek Technology Corporation], RT9266 Datasheet - Page 5

• Manufacturer Part Number: RT9266
• Description: Tiny Package, High Efficiency, Step-up DC/DC Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Absolute Maximum Ratings
l
l
l
l
l
l
l
l
NOTE:
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions.
Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum
ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily
imply functional operation below these limits
Electrical Characteristics
(V
DS9266-12 May 2007
Start-UP Voltage
Operating VDD Range
Shutdown Current I (V
Switch-off Current I (VDD)
Continuous Switching Current
No Load Current I (V
Feedback Reference Voltage
Switching Frequency
Maximum Duty
LX ON Resistance
Current Limit Setting
EXT ON Resistance to VDD
EXT ON Resistance to GND
Line Regulation
Load Regulation
EN Pin Trip Level
Temperature Stability for Vout
Thermal Shutdown Hysterises
Supply Voltage --------------------------------------------------------------------------------------------------- 0.3V to 7V
LX Pin Switch Voltage ------------------------------------------------------------------------------------------ 0.3V to 7V
Other I/O Pin Voltages ------------------------------------------------------------------------------------------ 0.3V to (V
LX Pin Switch Current ------------------------------------------------------------------------------------------- 2.5A
EXT Pin Driver Current ------------------------------------------------------------------------------------------ 200mA
Package Thermal Resistance
SOT-23-6,
SOT-89-5,
Operating Junction Temperature ------------------------------------------------------------------------------ 125 C
Storage Temperature Range ----------------------------------------------------------------------------------- 65 C to +150 C
IN
= 1.5V, VDD set to 3.3V, Load Current = 0, T
Parameter
JC
JC
----------------------------------------------------------------------------------------------------- 145 C/W
----------------------------------------------------------------------------------------------------- 45 C/W
IN
IN
)
)
V
V
I
I
I
I
V
F
D
I
T
OFF
SWITCH OFF
SWITCH
NO LOAD
LIMIT
S
V
V
S
T
ST
DD
REF
MAX
Symbol
SD
LINE
LOAD
A
= 25° C, unless otherwise specified)
I
V
EN Pin = 0V, V
V
V
V
Close Loop, VDD = 3.3V
V
V
V
V
V
V
V
V
V
L
DD
IN
IN
IN
DD
IN
DD
DD
DD
DD
DD
IN
DD
= 1mA
= 6V
= EN = 3.3V, V
= 1.5V, V
= 2.5V, I
= 3.5 ~ 6V, I
pin voltage
= 3.3V
= 3.3V
= 3.3V
= 3.3V
= 3.3V
= 3.3V
= 3.3V
L
Test Conditions
OUT
= 1 ~ 100mA
IN
L
= 4.5V
= 3.3V
= 1mA
FB
= GND
1.225
Min
425
0.4
1.6
0.4
85
--
--
--
--
--
--
--
--
--
--
--
2
0.25
0.98
0.01
0.55
1.25
Typ
500
0.3
1.5
0.8
75
17
95
50
10
--
2
5
5
*
***
RT9266
www.richtek.com
1.275
Max
1.05
2.6
575
1.2
0.7
1.1
8.5
8.5
25
10
--
--
--
--
--
6
1
**
DD
+ 0.3V)
mV/mA
ppm/ C
Units
mV/V
kHz
mA
%
V
V
V
V
A
C
A
A
A
5