RT9267GC Просмотр технического описания (PDF) - Richtek Technology
Номер в каталоге
Компоненты Описание
производитель
RT9267GC Datasheet PDF : 9 Pages
| |||
RT9267
Preliminary
Electrical Characteristics
(VIN = 5V, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Section for Adaptive PWM Converters
Start-Up Voltage
Operating VDD Range
Feedback Reference Voltage
Switching Rate
Maximum Duty
LX ON Resistance
VST
VDD
VREF
FS
DMAX
IL = 1mA
Start-up to IDD > 250μA
-- 0.98 1.05 V
0.8
--
6.5 *
V
Close Loop, VDD = 3.3V 1.225 1.25 1.275 V
VDD = 3.3V
--
550
--
kHz
VDD = 3.3V
--
92
--
%
VDD = 3.3V
-- 0.25 --
Ω
Current Limit Setting
No Load Current (VIN)
Switch-off Current (VDD)
Line Regulation
Load Regulation
Section for LDO
LDO PMOS ON Resistance
ILIMIT
VDD = 3.3V
--
INO LOAD VIN = 1.5V, VOUT = 3.3V
--
ISWITCH OFF VIN = 6V
--
ΔVLINE
VIN = 1.5 ~ 2.5V, IL = 1mA --
ΔVLOAD
VIN = 2.5V, IL = 1 ~ 100mA --
2
47
17
10
0.25
--
A
--
μA
--
μA
-- mV/V
-- mV/mA
VDD = 3.3V
--
1
1.5
Ω
LDO Drop Out Voltage
VDROP
Feedback Reference Voltage for LDO VREF
Section for Voltage Detector
VDD = 3.3V, IL = 100mA
--
100
--
mV
Close Loop, VDD = 3.3V 0.843 0.86 0.877 V
LBO ON Resistance
VDD = 3.3V
--
40
--
Ω
LBI Pin Trip Point
VDD = 3.3V
0.843 0.86 0.877 V
Section for Whole Chip Property
Operating VDD Range
VDD
Shutdown Current (VIN)
IOFF
EN Pin Trip Level
Temperature Stability for FB, LFB, LBI TS
Thermal Shutdown
TSD
Start-up to IDD1 > 250μA
0.8
--
6
V
EN1 = EN2 = 0, VIN = 4.5V --
0.1
1
μA
VDD = 3.3V
0.4 1.0 1.4
V
Guaranteed by Design
--
40
-- ppm/°C
--
165
--
°C
* Note. The EN 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, in case that VDD pin is conducted from VIN.
www.richtek.com
4
DS9267-08 March 2007
Share Link: 