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LP2966IMMX-3325 Datasheet, PDF (5/21 Pages) Texas Instruments – Dual 150mA Ultra Low-Dropout Regulator
◁
LP2966
www.ti.com
SNVS028E – APRIL 2000 – REVISED APRIL 2013
ELECTRICAL CHARACTERISTICS (continued)
Limits in standard typeface are for Tj = 25°C, and limits in boldface type apply over the full operating junction temperature
range. Unless otherwise specified, VIN = VO(NOM) + 1V(1), COUT = 1µF, IOUT = 1mA, CIN = 1µF, VSD1 = VSD2 = VIN.
Symbol
Parameter
Conditions
Typ (2)
LP2966IMM (3)
Min
Max
Unit
Over Temperature Protection
Tsh(t)
Shutdown Threshold
165
°C
Tsh(h)
Thermal Shutdown
Hysteresis
25
°C
Shutdown Input
VSDT
TdOFF
TdON
ISD
Shutdown Threshold(12)
Turn-off Delay(13)
Turn-on Delay(13)
SD Input Current
Error Flag Comparators
VT
Threshold (output goes
high to low)
VTH
VERR(Sat)
IEF(leak)
Threshold Hysteresis
Error Flag Saturation
Error Flag Pin Leakage
Current
Output = Low
Output = High
IL = 100 mA
IL = 100 mA
VSD = VIN
VSD = 0 V
See (14)
See (14)
IFsink = 100µA
0
0.1
V
VIN
VIN - 0.1
20
µsec
25
µsec
1
nA
1
10
5
5
2
0.015
1
16
%
8
%
0.1
V
nA
I(EFsink)
Error Flag Pin Sink
Current
1
mA
AC Parameters
PSRR
ρn(1/f)
Ripple Rejection
VIN = VOUT + 1V, f = 120Hz,
60
VOUT = 3.3V
VIN = VOUT + 0.3V, f = 120Hz,
40
VOUT = 3.3V
Output Noise Density
f =120Hz
1
dB
µV/√Hz
en
Output Noise Voltage BW = 10Hz − 100kHz,
150
(rms)
COUT = 10µF
BW = 300Hz − 300kHz,
100
COUT = 10µF
µV(rms)
(12) VSDT is the shutdown pin voltage threshold below which the output is disabled.
(13) Turn-on delay is the time interval between the low to high transition on the shutdown pin to the output voltage settling to within 5% of the
nominal value. Turn-off delay is the time interval between the high to low transition on the shutdown pin to the output voltage dropping
below 50% of the nominal value. The external load impedance influences the output voltage decay in shutdown mode.
(14) Error Flag threshold and hysteresis are specified as the percentage below the regulated output voltage.
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