Preliminary
RT9261/A
Electrical Characteristics (Refer to Fig. 2)
Parameter
Output Voltage Accuracy
Input Voltage
Symbol
∆V
Test Conditions
Min Typ Max Units
-2
--
--
--
--
--
--
+2
7
%
V
OUT
V
V
IN
Start-up Voltage
0.85 1.0
V
I
= 1mA, V : 0 → 2V
IN
ST
OUT
(1)
30
60
50
90
V
≤ 3.5V
OUT
To be measured at V at no
IN
Input Current 1
Input Current 2
µA
µA
(2)
(2)
(2)
(2)
load
3.5V < V
≤ 5V
OUT
(1)
V
OUT
≤ 3.5V
To be measured at V
switch off condition
in
OUT
--
6
10
3.5V < V
≤ 5V
OUT
(1)
-1.5
-2
--
--
--
--
--
--
--
--
V
OUT
≤ 3.5V
EXT “H” Output
Current
mA
mA
V
= V
– 0.4V
EXT
EXT
OUT
3.5V < V
≤ 5V
OUT
(1)
1.5
2
V
OUT
≤ 3.5V
EXT “L” Output
Current
V
= 0.4V
3.5V < V
≤ 5V
OUT
Maximum Oscillator Frequency
Oscillator Duty Cycle
Notes:
80
65
120 160
75 85
KHz
%
F
MAX
D
V
EXT
” H ” side
OSC
(1) Unless otherwise provided, V = 1.8V, VSS = 0V, I
= 10mA, T
= 25°C, and use External Circuit of
OPT
IN
OUT
Typical Application
(2) Unless otherwise provided, V = 3V, VSS = 0V, I
= 10mA, T = 25°C, and External Circuit of Typical
OPT
IN
OUT
Application
DS9261/A-03 January 2002
www.richtek-ic.com.tw
3
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
