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LP3962_15 Datasheet, PDF (6/34 Pages) Texas Instruments – 1.5A Fast Ultra Low Dropout Linear Regulators
LP3962, LP3965
SNVS066H – MAY 2000 – REVISED APRIL 2013
www.ti.com
Electrical Characteristics
LP3962/LP3965 (continued)
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 10 mA, COUT = 33µF, VSD = VIN-0.3V.
Symbol
Parameter
Conditions
Typ (1)
LP3962/5 (2)
Units
Min
Max
TdON
Turn-on delay
ISD
SD Input Current
ERROR FLAG COMPARATOR
VT
VTH
VEF(Sat)
Td
Threshold
Threshold Hysteresis
Error Flag Saturation
Flag Reset Delay
IL = 1.5 A
VSD = VIN
See (7)
See (7)
Isink = 100µA
25
µs
1
nA
10
5
16
%
5
2
8
%
0.02
0.1
V
1
µs
Ilk
Error Flag Pin Leakage Current
1
nA
Imax
Error Flag Pin Sink Current
VError = 0.5V (over temp.)
1
mA
AC PARAMETERS
VIN = VOUT + 1.5V
60
COUT = 100uF
PSRR
Ripple Rejection
VOUT = 3.3V
VIN = VOUT + 0.3V
40
COUT = 100uF
VOUT = 3.3V
ρn(l/f
Output Noise Density
f = 120Hz
0.8
BW = 10Hz – 100kHz
150
en
Output Noise Voltage (rms)
BW = 300Hz – 300kHz
100
dB
µV
µV (rms)
(7) Error Flag threshold and hysteresis are specified as percentage of regulated output voltage.
6
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