RT9261 RICHTEK [Richtek Technology Corporation], RT9261 Datasheet - Page 2

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

RT9261/A
Absolute Maximum Ratings
Notes:
Electrical Characteristics
www.richtek-ic.com.tw
2
(1) Applicable to RT9261-
(2) Applicable to RT9261A-
(3) Applicable to RT9261-
Notes:
(1) V
(2) V
Output Voltage Accuracy
Input Voltage
Start-up Voltage
Hold-on Voltage
Input Current 1
Input Current 2
LX Switching Current
LX Leakage Current
Maximum Oscillator
Oscillator Duty Cycle
Efficiency
V
LX
Output Voltage
LX Pin Voltage
EXT Pin Voltage
CE Pin Voltage
LX Pin Output Current
EXT Pin Current
Power Dissipation, P
SOT-89
SOT-25
Package Thermal Resistance
SOT-89, θ
SOT-89, θ
SOT-25, θ
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Voltage Limit
IN
IN
= 1.8V, VSS = 0V, I
= 3V, VSS = 0V, I
JC
JA
JA
Parameter
(1)
(3)
(2)
(2)
D
V
3.5V < V
V
3.5V < V
@ T
(1)
OUT
OUT
OUT
OUT
A
≤ 3.5V
≤ 3.5V
= 10mA, T
CX and RT9261-
CB and RT9261A-
= 25°C
CX and RT9261A-
= 10mA, T
OUT
OUT
(1)
≤ 5V
(1)
≤ 5V
(Refer to Fig. 1)
OPT
(2)
(2)
OPT
= 25°C, and External Circuit of Typical Application
= 25°C, and External Circuit of Typical Application
∆V
V
V
V
I
I
F
D
SWITCHING
LEAKAGE
Symbol
MAX
IN
ST
HO
OSC
OUT
Preliminary
CB
CB
CB
no load
I
I
To be measured at V
V
V
On ( V
L
To be measured at V
in switch off condition
OUT
OUT
X
LX
LX
switch on
= 6V
Test Conditions
= 0.4V
= 1mA, V
= 1mA, V
LX
” L ” ) side
IN
IN
: 0 → 2V
: 2 → 0V
IN
OUT
at
DS9261/A-03 January 2002
0.65
Min
0.7
60
80
80
65
-2
--
--
--
--
--
--
--
8V
8V
-0.3 to V
-0.3 to V
250mA
±50mA
0.5W
0.25W
100°C/W
300°C/W
250°C/W
-20 to +85°C
165°C
260°C
0.85
Typ
120
0.8
15
18
75
75
--
--
--
--
--
--
5
Max Units
160
1.0
0.5
1.0
+2
18
24
85
--
--
--
--
OUT
OUT
7
8
+0.3V
+0.3V
KHz
mA
µA
µA
µA
%
%
%
V
V
V
V