LP3981-12B5F POWER [Lowpower Semiconductor inc], LP3981-12B5F Datasheet - Page 3

• Manufacturer Part Number: LP3981-12B5F
• Description: 300mA,Ultra-low noise, Small Package Ultra-Fast CMOS LDO Regulator
• Manufacturer: POWER [Lowpower Semiconductor inc]

Electrical Characteristics
(VIN = VOUT + 1V, CIN = COUT = 1µF, CBP = 22nF, TA = 25° C, unless otherwise specified)
Parameter
Output Voltage Accuracy
Output Current
Current Limit
Quiescent Current
Dropout Voltage
Line Regulation
Load Regulation
Standby Current
EN Input Bias Current
EN Threshold
Output Noise Voltage
Power Supply
Rejection Rate
Thermal Shutdown Temperature
LP3981 – 01 Ver. 1.1 Datasheet
Logic-Low
Voltage
Logic-High
Voltage
f = 100Hz
f = 10kHz
Feb.-2008
Symbol
ΔVOUT
Iout
ILIM
IQ
VDROP
ΔVLINE
ΔLOAD
ISTBY
IIBSD
VIL
VIH
PSRR
TSD
Preliminary Datasheet
Test Conditions
IOUT = 1mA
VEN=VIN,VIN>2.5V
1mA < IOUT < 300mA
VEN = GND, Shutdown
VEN = GND or VIN
RLOAD = 1Ω
VEN ≥ 1.2V, IOUT = 0mA
IOUT = 200mA, VOUT >
2.8V
IOUT = 300mA, VOUT >
2.8V
10Hz to 100kHz, IOUT =
200mA COUT = 1µF
VIN = (VOUT + 1V) to
5.5V, IOUT = 1mA
VIN = 3V to 5.5V,
VIN = 3V to 5.5V,
COUT = 1µF,
IOUT = 10mA
Shutdown
Start-Up
Min
−2
360
1.2
Typ
--
300
400
75
170
220
0.01 1
0.01 100
100
−73
−70
165
+2
Max
120
200
300
0.3
0.6
0.4
Units
%
mA
mA
μA
mV
%
%
μA
nA
V
uVRMS
dB
°C
Page 3 of 8
LP3981