RT9266CX5 데이터 시트보기 (PDF) - Richtek Technology
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RT9266CX5 Datasheet PDF : 14 Pages
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Preliminary
RT9266
Absolute Maximum Ratings
Supply Voltage
LX Pin Switch Voltage
Other I/O Pin Voltages
LX Pin Switch Current
EXT Pin Driver Current
• Package Thermal Resistance
SOT-26, θJC
SOT-89-5, θJC
Operating Junction Temperature
Storage Temperature Range
− 0.3V to 7V
− 0.3V to (VDD + 0.8V)
− 0.3V to (VDD + 0.3V)
2.5A
200mA
145°C/W
45°C/W
125°C
− 65°C ~ +150°C
Electrical Characteristics
(VIN = 1.5V, VDD set to 3.3V, Load Current = 0, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Start-UP Voltage
Operating VDD Range
No Load Current I (VIN)
Switch-off Current I (VDD)
Shutdown Current I (VIN)
Feedback Reference Voltage
Switching Frequency
Maximum Duty
LX ON Resistance
VST
IL = 1mA
VDD
VDD pin voltage
INO LOAD VIN = 1.5V, VOUT = 3.3V
ISWITCH OFF VIN = 6V
IOFF
CE Pin = 0V, VIN = 4.5V
VREF
Close Loop, VDD = 3.3V
FS
VDD = 3.3V
DMAX
VDD = 3.3V
VDD = 3.3V
-- 0.98 1.05
V
2
--
6.5 *
V
--
75
--
µA
--
17
--
µA
-- 0.01 1
µA
1.225 1.25 1.275 V
--
450 --
KHz
--
95
--
%
--
0.3
--
Ω
Current Limit Setting
EXT ON Resistance to VDD
ILIMIT
VDD = 3.3V
VDD = 3.3V
--
2
--
A
--
5
--
Ω
EXT ON Resistance to GND
VDD = 3.3V
--
5
--
Ω
Line Regulation
Load Regulation
CE Pin Trip Level
∆VLINE
∆VLOAD
VIN = 1.5 ~ 2.5V, IL = 1mA --
VIN = 2.5V, IL = 1 ~ 100mA --
VDD = 3.3V
0.4
10
-- mV/V
0.25 -- mV/mA
0.8 1.2
V
Temperature Stability for Vout
Thermal Shutdown
Thermal Shutdown Hysterises
Ts
TSD
∆TSD
--
50
-- ppm/°C
-- 165 --
°C
--
10
--
°C
* Note: The CE pin shall be tied to VDD pin and inhibit to act the ON/OFF state whenever the VDD pin voltage
may reach to 5.5V or above.
DS9266-02 February 2003
www.richtek.com
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