ELECTRICAL CHARACTERISTICS
VIN = VOUT (NOMINAL) + 1V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = + 25°C
PARAMETER
Input Voltage
SYMBOL
CONDITIONS
MIN
2.5
TYP
MAX
5.5
UNITS
VIN
V
IOUT = 0.1mA, TA = +25°C
-2
2
Output Voltage Accuracy
%
IOUT = 0.1mA to 250mA
TA = -40°C to +85°C
2.6
Maximum Output Current
Current Limit
250
260
mA
mA
ILIM
IQ
450
85
No load, EN =1.6V
135
Ground Pin Current
µA
IOUT = 250mA, EN = 1.6V
160
1.2
IOUT = 1mA
Dropout Voltage(Note1)
mV
IOUT = 250mA
250
400
0.15
VIN = 2.5V or (VOUT + 0.5V) to 5.5V
IOUT = 1mA
Line Regulation
ΔVLNR
ΔVLDR
en
0.015
0.001
30
%/V
Load Regulation
Output Voltage Noise
IOUT = 0.1mA to 250mA, COUT = 1µF
f = 10Hz to 100kHz, CBP = 0.01µF,
COUT = 10µF
0.003
%/mA
µVRMS
f = 100Hz
CBP = 0.1µF, ILOAD = 50mA,
COUT = 1µF
76
73
dB
dB
Power Supply Rejection Rate
SHUTDOWN
PSRR
f = 1kHz
VIH
1.6
EN Input Threshold
VIN = 2.5V to 5.5V
EN = 0V and EN = 5.5V
EN = 0.4V
V
VIL
0.4
1
TA = +25°C
TA = +125°C
TA = +25°C
TA = +125°C
0.01
0.01
0.01
0.01
EN Input Bias Current
IB(SHDN)
µA
µA
µs
1
Shutdown Supply Current
Shutdown Exit Delay(Note2)
IQ(SHDN)
CBP = 0.01µF
TA = +25°C
30
COUT = 1µF, No load
THERMAL PROTECTION
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TSHDN
160
10
℃
℃
ΔTSHDN
Specifications subject to change without notice.
Note 1: The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 1V. (Only
applicable for VOUT = +2.5V to +3.3V)
Note 2: Time needed for VOUT to reach 95% of final value.
3
SGM2014
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
