LTC1515 Ver la hoja de datos (PDF) - Linear Technology
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LTC1515 Datasheet PDF : 8 Pages
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LTC1515 Series
TYPICAL APPLICATIONS
Low Power, Low Noise Step-Up/Step-Down 5V Supply with Reset
ON OFF
RESET
1.4M
402k
470k
1
8
SHDN
VOUT
2 POR
VIN 7
3 FB LTC1515 C1+ 6
4 GND
C1– 5
Programmable 3V/5V GSM SIM Card Power Supply
ON OFF
5V 3V
1 SHDN
8
VOUT
NC 2 POR
VIN 7
3
LTC1515-3/5
5/3
C1+
6
4
GND
C1– 5
+
0.1µF
VOUT = 3V OR 5V
IOUT = 15mA
+
10µF
10µF
Li-Ion
LTC1515 • TA04
5.5V
+
0.22µF
+
10µF
22µF
VIN = 3V TO 10V
2Ω
8
+
10µF
IN
LT1121-5
OUT 1
GND
+
VOUT = 5V
IOUT = 20mA
VRIPPLE < 1mVP-P
3
10µF
LTC1515 • TA03
ON OFF
VIN
1 SHDN
VOUT 8
2
NC POR
VIN 7
3
LTC1515-3/5
5/3
C1+
6
4
GND
C1– 5
* CENTRAL SEMICONDUCTOR
CMPSH-35 DUAL SCHOTTKY
** OPTIONAL CIRCUITRY FOR MAINTAINING
–VOUT WITH LOW VOUT LOADS
Q1, Q2: 2N3904
Positive and Negative Supply
+
+
0.22µF
10µF
10µF
470Ω
VOUT = 5V
IOUT = 15mA, 2.7V ≤ VIN ≤ 4.4V
IOUT = 50mA, 3.3V ≤ VIN ≤ 4.4V
8.2k VIN = 2.7V TO 4.4V
Q1
Q2
0.22µF
*
2.4k
**
VOUT = –1V TO –3.5V
IOUT = 5mA
+ 10µF
LTC1515 • TA05
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.004 – 0.010
(0.101 – 0.254)
0.016 – 0.050
0.406 – 1.270
0.014 – 0.019
(0.355 – 0.483)
*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
0.050
(1.270)
TYP
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 0996
RELATED PARTS
PART NUMBER
LTC1514 Series
LTC1516
LTC1517-5
LTC1522
LTC1555/LTC1556
LTC660
DESCRIPTION
Step-Up/Step-Down Switched Capacitor DC/DC Converters
Micropower, Regulated 5V Charge Pump DC/DC Converter
Micropower, Regulated 5V Charge Pump DC/DC Converter
Micropower, Regulated 5V Charge Pump DC/DC Converter
SIM Power Supply and Level Translators
100mA CMOS Voltage Converter
COMMENTS
VIN 2V to 10V, 3.3V and 5V Versions, IOUT to 50mA
IOUT = 20mA (VIN ≥ 2V), IOUT = 50mA (VIN ≥ 3V)
LTC1522 Without Shutdown and Packaged in SOT-23
Available in 8-Pin MSOP, 6µA Quiescent Current, IOUT = 20mA
Step-Up/Step-Down SIM Power Supply and Level Translators
5V to – 5V Conversion with Low Voltage Loss
8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900
FAX: (408) 434-0507qTELEX: 499-3977 q www.linear-tech.com
1515f LT/TP 0298 4K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1997
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