RT9261 RICHTEK [Richtek Technology Corporation], RT9261 Datasheet - Page 3

• Manufacturer Part Number: RT9261
• Description: VFM Step-up DC/DC Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

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