20
LT3150
3150f
?LINEAR TECHNOLOGY CORPORATION 2002
LT/TP 1003 1K " PRINTED IN THE USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
q
FAX: (408) 434-0507
q
www.linear.com
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1573
UltraFast Transient Response Low Dropout
V
IN
: 2.8V to 10V, V
OUT
: 1.265V, Dropout Voltage: 0.35V, I
Q
: 1.7mA,
Regulator PNP Driver, Up to 5A
I
SD
: 200礎, Requires External PNP Transistor, S8 Package
LT1575/LT1577    UltraFast Transient Response Low Dropout
V
IN
: 1.5V to 22V, V
OUT
: 1.21V, Dropout Voltage: 0.15V, I
Q
: 12mA,
Regulator MOSFET Driver, Up to 10A
LT1577 is Dual Version, N8, S8 Packages
LT1761
100mA, Low Noise Micropower, LDO
V
IN
: 1.8V to 20V, V
OUT
: 1.22V, Dropout Voltage: 0.30V, I
Q
: 20礎,
I
SD
: <1礎, Low Noise <20礦
RMS P-P
, Stable with 1礔 Ceramic
Capacitors, ThinSOT Package
LT1762
150mA, Low Noise Micropower, LDO
V
IN
: 1.8V to 20V, V
OUT
: 1.22V, Dropout Voltage: 0.30V, I
Q
: 25礎,
I
SD
: <1礎, Low Noise <20礦
RMS P-P
, MS8 Package
LT1763
500mA, Low Noise Micropower, LDO
V
IN
: 1.8V to 20V, V
OUT
: 1.22V, Dropout Voltage: 0.30V, I
Q
: 30礎,
I
SD
: <1礎, Low Noise <20礦
RMS P-P
, S8 Package
LT1764/LT1764A   3A, Low Noise, Fast Transient Response, LDO
V
IN
: 2.7V to 20V, V
OUT
: 1.21V, Dropout Voltage: 0.34V, I
Q
: 1mA,
I
SD
: <1礎,Low Noise <40礦
RMS P-P
, A Version Stable with Ceramic
Capacitors, DD, TO220-5 Packages
LT1962
300mA, Low Noise Micropower, LDO
V
IN
: 1.8V to 20V, V
OUT
: 1.22V, Dropout Voltage: 0.27V, I
Q
: 30礎,
I
SD
: <1礎, Low Noise <20礦
RMS P-P
, MS8 Package
LT1963/LT1963A   1.5A, Low Noise, Fast Transient Response, LDO
V
IN
: 2.1V to 20V, V
OUT
: 1.21V, Dropout Voltage: 0.34V, I
Q
: 1mA,
I
SD
: <1礎, Low Noise <40礦
RMS P-P
, A Version Stable with Ceramic
Capacitors, DD, T0220-5, SOT-223, S8 Packages
LTC3411
1.25A(I
OUT
), 4MHz, Synchronous Step-Down
95% Efficiency, V
IN
: 2.5V to 5.5V, I
OUT
: 1.25A, V
REF
: 0.8V,
DC/DC Converter
I
SD
: <1礎, MS and DFN Packages
LTC3412
2.5A(I
OUT
), 4MHz, Synchronous Step-Down
95% Efficiency, V
IN
: 2.5V to 5.5V, I
OUT
: 2.5A, V
REF
: 0.8V,
DC/DC Converter
I
SD
: <1礎, TSSOP16E Package
TYPICAL APPLICATIO
1.8V to 1.5V, 4A Very Low Dropout Linear Regulator with No R
SENSE
Current Limiting and Shutdown
+
V
IN2
FB1
SHDN2
SWGND
GND
GND
SW
V
IN1
SHDN1
I
POS
I
NEG
GATE
FB2
COMP
LT3150
MBR0520L
L1
10礖
10k
SHDN1
1.5k
243&
1%
1020&
1%
C1
4.7礔
0.01礔
SHDN2
+
C
IN
220礔
2.5V
?
V
IN
1.8V
V
OUT
1.5V
4A
6.19k
1%
1.37k
1%
Si4410
3150 TA11a
2.2礔 ?0
X5R CERAMIC
0805 CASE
5.1&
BAT54
6800pF
50pF
10礔
C
IN
: PANASONIC SP SERIES EEFUE0E221R 20%
C1: AVX TAJA475M020R 20V 20%
L1: MURATA LQH32CN100K11 OR SUMIDA CDRH3D16100