16
LT3027
3027fa
RD/LT 1105 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2004
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
TYPICAL APPLICATIO S
U
OUT1
BYP1
ADJ1
OUT2
BYP2
ADJ2
LT3027
1µF
V
IN1
3.7V TO 20V
OFF ON
0.01µF
0.01µF
422k
261k
249k
249k
35.7k
28k
10µF
10µF
3027 TA03a
3.3V
AT
100mA
2.5V
AT
100mA
GND
0.47µF
IN1
1µF
V
IN2
2.9V TO 20V
IN2
SHDN1
SHDN2
V
SHDN1
1V/DIV
V
OUT1
1V/DIV
V
OUT2
1V/DIV
2ms/DIV
3027 TA03b
V
SHDN1
1V/DIV
V
OUT1
1V/DIV
V
OUT2
1V/DIV
2ms/DIV
3027 TA03c
Startup Sequencing
Turn-On Waveforms Turn-Off Waveforms
PART NUMBER DESCRIPTION COMMENTS
LT1761 100mA, Low Noise Micropower, LDO Low Noise < 20µV
RMS
, Stable with 1µF Ceramic Capacitors,
V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22V, Dropout Voltage = 0.3V, I
Q
= 20µA,
I
SD
= <1µA, V
OUT
= Adj., 1.5, 1.8, 2, 2.5, 2.8, 3, 3.3, 5, ThinSOT Package
LT1762 150mA, Low Noise Micropower, LDO Low Noise < 20µV
RMS
,
V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22V, Dropout Voltage = 0.3V, I
Q
= 25µA,
I
SD
= <1µA, V
OUT
= Adj., 2.5, 3, 3.3, 5, MS8 Package
LT1763 500mA, Low Noise Micropower, LDO Low Noise < 20µV
RMS
,
V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22V, Dropout Voltage = 0.3V, I
Q
= 30µA,
I
SD
= <1µA, V
OUT
= 1.5, 1.8, 2.5, 3, 3.3, 5, S8 Package
LT1764/LT1764A 3A, Low Noise, Fast Transient Response, LDO Low Noise < 40µV
RMS
, "A" Version Stable with Ceramic Capacitors,
V
IN
: 2.7V to 20V, V
OUT(MIN)
= 1.21V, Dropout Voltage = 0.34V, I
Q
= 1mA,
I
SD
= <1µA, V
OUT
= 1.8, 2.5, 3.3, DD, TO220 Packages
LTC1844 150mA, Very Low Drop-Out LDO Low Noise < 30µV
RMS
, Stable with 1µF Ceramic Capacitors,
V
IN
: 1.6V to 6.5V, V
OUT(MIN)
= 1.25V, Dropout Voltage = 0.08V, I
Q
= 40µA,
I
SD
= <1µA, V
OUT
= Adj., 1.5, 1.8, 2.5, 2.8, 3.3, ThinSOT Package
LT1962 300mA, Low Noise Micropower, LDO Low Noise < 20µV
RMS
,
V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22V, Dropout Voltage = 0.27V, I
Q
= 30µA,
I
SD
= <1µA, V
OUT
= 1.5, 1.8, 2.5, 3, 3.3, 5, MS8 Package
LT1963/LT1963A 1.5A, Low Noise, Fast Transient Response, LDO Low Noise < 40µV
RMS
, "A" Version Stable with Ceramic Capacitors,
V
IN
: 2.1V to 20V, V
OUT(MIN)
= 1.21V, Dropout Voltage = 0.34V, I
Q
= 1mA,
I
SD
= <1µA, V
OUT
= 1.5, 1.8, 2.5, 3.3, DD, TO220, SOT-223, S8 Packages
LT1964 200mA, Low Noise Micropower, Negative LDO Low Noise < 30µV
RMS
, Stable with Ceramic Capacitors,
V
IN
: –0.9V to –20V, V
OUT(MIN)
= –1.21V, Dropout Voltage = 0.34V, I
Q
= 30µA,
I
SD
= 3µA, V
OUT
= Adj., –5, ThinSOT Package
LT3020 100mA, VLDO in MSOP Low Noise < 245µV
RMS
, Stable with 2.2µF Ceramic Capacitors,
V
IN
: 0.9V to 10V, V
OUT(MIN)
= 0.2 V, Dropout Voltage = 0.155V, I
Q
= 140µA,
I
SD
= <3µA, V
OUT
= Adj., MS8, DFN Packages
LT3023 Dual 100mA, Low Noise Micropower, LDO Dual Low Noise < 20µV
RMS
, Stable with 1µF Ceramic Capacitors,
V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22 V, Dropout Voltage = 0.3V, I
Q
= 40µA,
I
SD
= <1µA, V
OUT
= Adj., MS10, DFN Packages
LT3024 Dual 100mA/500mA, Low Noise Micropower, LDO Dual Low Noise < 20µV
RMS
, Stable with 1µF/3.3µF Ceramic Capacitors,
V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22 V, Dropout Voltage = 0.3V, I
Q
= 60µA,
I
SD
= <1µA, V
OUT
= Adj., TSSOP16, DFN Packages
LT3028 Dual 100mA/500mA, Low Noise Micropower, LDO Dual Low Noise < 20µV
RMS
, Stable with 1µF/3.3µF Ceramic Capacitors,
with Independent Inputs V
IN
: 1.8V to 20V, V
OUT(MIN)
= 1.22 V, Dropout Voltage = 0.3V/0.32V,
I
Q
= 60µA/65µA, I
SD
= <1µA, V
OUT
= Adj., TSSOP16, DFN Packages
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