RT9177-25CB Ver la hoja de datos (PDF) - Richtek Technology
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Lista de partido
RT9177-25CB Datasheet PDF : 12 Pages
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Preliminary
RT9177
Absolute Maximum Ratings
z Input Voltage VIN
z Power Dissipation
SOT-25
z Operating Junction Temperature Range
z Storage Temperature Range
z Thermal Resistance
RθJA
z Lead Temperature
(Soldering 5 sec.)
7V
0.25W
−40°C to 125°C
−65°C to 150°C
250°C/W
260°C
Electrical Characteristics
(VIN = 5.0V, CIN = 1µF, COUT = 1µF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Input Voltage
VIN
2.5 --
6
V
Output Voltage Accuracy
∆VOUT IL = 1mA
-2 -- +2
%
Maximum Output Current
IMAX
200 -- --
mA
Current Limit
ILIMIT RLOAD = 1 Ohm
-- 300 --
mA
GND Pin Current
No Load
IG
IOUT = 200mA
-- 80 150
-- 90 150
µA
Dropout Voltage (Note)
(VOUT(Nominal)≥3.0V Version)
VDROP
IOUT = 1mA
IOUT = 50mA
IOUT = 200mA
-- 1.1 5
-- 55 100 mV
-- 220 300
Line Regulation
∆VLINE VIN = (VOUT+0.15) to 6V, IOUT = 1mA -0.2 -- +0.2 %/V
Load Regulation
∆VLOAD IOUT = 0mA to 200mA
-- 0.01 0.04 %/mA
SHDN Input High Threshold
VIH
VIN = 3V to 5.5V
1.0 -- --
V
SHDN Input Low Threshold
VIL
VIN = 3V to 5.5V
-- -- 0.4
V
SHDN Bias Current
ISD
-- -- 100 nA
Shutdown Supply Current
IGSD
VOUT = 0V
-- 0.01 1
µA
Thermal Shutdown Temperature TSD
-- 150 --
°C
Output Noise
eno
CBP = 10nF, COUT = 10µF
-- 150 -- nV/ Hz
Ripple Rejection
PSRR F = 100Hz, CBP = 10nF, COUT = 10µF -- 68 --
dB
Notes: Dropout voltage definition: VIN - VOUT when VOUT is 50 mV below the value of VOUT at VIN = VOUT + 0.5V
DS9177-00 Feb. 2001
www.richtek-ic.com.tw
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