LT1573C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1573C' PDF : 16 Pages View PDF
LT1573
TYPICAL APPLICATIO S
High Efficiency 2.5V to 1.8V Converter at 5A Output Current
LT1573
FB
COMP
VIN1
+
2.5V
CIN1
+
CTIME
0.5µF
VIN2
3V
TO 7V
LATCH
SHDN
GND
VOUT
VIN
DRIVE
RD
6.2Ω
1/2W
+
CIN2
RB
200Ω
1/8W
MOTOROLA
D45H11
+
COUT
R1
420Ω
1/8W
R2
1k
1/8W
CIN1, COUT = AVX 100µF/10V SURFACE MOUNT TANTALUM CAPACITOR
CIN2 = AVX 15µF/10V SURFACE MOUNT TANTALUM CAPACITOR
CTIME = 0.5µF FOR 100ms TIME OUT AT ROOM TEMPERATURE
SHDN (ACTIVE HIGH) PIN SHOULD BE TIED TO GROUND IF IT IS NOT USED
VOUT
1.8V
LOAD
GND
1573 TA06
PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.016 – 0.050
(0.406 – 1.270)
0.014 – 0.019
(0.355 – 0.483)
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
0.228 – 0.244
(5.791 – 6.197)
0.189 – 0.197*
(4.801 – 5.004)
8
7
6
5
1
2
34
0.150 – 0.157**
(3.810 – 3.988)
SO8 1298
RELATED PARTS
PART NUMBER
LT1529
LT1575/LT1577
LT1580/LT1581
LT1584/LT1585/LT1587
LT1761/LT1762/LT1763
LT1764
DESCRIPTION
3A Micropower Low Dropout Regulator
Low Dropout N-Channel MOSFET Regulator Driver
7A, 10A Very Low Dropout Linear Regulators
7A/4.6A/3A Low Dropout, Fast Response Regulators
Low Noise LDO Micropower Regulators
3A Fast Transient Response Low Dropout Regulator
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900
FAX: (408) 434-0507q TELEX: 499-3977 q www.linear-tech.com
COMMENTS
50µA Quiescent Current, 0.5V Dropout, Shutdown
Ultrafast Transient, Adjustable/Fixed Output, Current Limiting
For High Current 3.3V to 2.xV Applications
For High Performance Microprocessors
20µA to 30µA Quiescent Current, 20µVRMS Noise
340mV Dropout Voltage
1573fa LT/TP 1299 2K REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1997
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