Datasheet

8
LTC1515 Series
 LINEAR TECHNOLOGY CORPORATION 1997
1515f LT/TP 0298 4K • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
[phone]
FAX: [phone]
●
TELEX: 499-3977
●
www.linear-tech.com
PART NUMBER DESCRIPTION COMMENTS
LTC1514 Series Step-Up/Step-Down Switched Capacitor DC/DC Converters V
IN
2V to 10V, 3.3V and 5V Versions, I
OUT
to 50mA
LTC1516 Micropower, Regulated 5V Charge Pump DC/DC Converter I
OUT
= 20mA (V
IN
≥ 2V), I
OUT
= 50mA (V
IN
≥ 3V)
LTC1517-5 Micropower, Regulated 5V Charge Pump DC/DC Converter LTC1522 Without Shutdown and Packaged in SOT-23
LTC1522 Micropower, Regulated 5V Charge Pump DC/DC Converter Available in 8-Pin MSOP, 6µA Quiescent Current, I
OUT
= 20mA
LTC1555/LTC1556 SIM Power Supply and Level Translators Step-Up/Step-Down SIM Power Supply and Level Translators
LTC660 100mA CMOS Voltage Converter 5V to –5V Conversion with Low Voltage Loss
TYPICAL APPLICATIONS
U
RELATED PARTS
1
2
3
4
0.150 – 0.157**
(3.810 – 3.988)
8
7
6
5
0.189 – 0.197*
(4.801 – 5.004)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
× 45°
0°– 8° TYP
0.008 – 0.010
(0.203 – 0.254)
SO8 0996
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
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


*

**
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
PACKAGE DESCRIPTION
U
Dimensions in inches (millimeters) unless otherwise noted.
Low Power, Low Noise Step-Up/Step-Down 5V Supply with Reset
SHDN
POR
GND
FB
V
OUT
V
IN
C1
–
C1
+
LTC1515
1
2
3
4
8
7
6
5
0.22µF
10µF
22µF
1.4M
V
IN
= 3V TO 10V
ON OFF
RESET
LTC1515 • TA03
402k
470k
LT1121-5
IN
GND
OUT
10µF
8
3
1
V
OUT
= 5V
I
OUT
= 20mA
V
RIPPLE
< 1mV
P-P
5.5V
+ +
2Ω
10µF
+
+
Programmable 3V/5V GSM SIM Card Power Supply
SHDN
POR
GND
5/3
V
OUT
V
IN
C1
–
C1
+
LTC1515-3/5
1
2
3
4
8
7
6
5
0.1µF
NC
10µF 10µF
Li-Ion
V
OUT
= 3V OR 5V
I
OUT
= 15mA
ON OFF
5V 3V
LTC1515 • TA04
+ +
Positive and Negative Supply
SHDN
POR
GND
5/3
V
OUT
V
IN
V
IN
C1
–
C1
+
LTC1515-3/5
1
2
3
4
8
7
6
5
0.22µF
0.22µF
**
* CENTRAL SEMICONDUCTOR
CMPSH-35 DUAL SCHOTTKY
** OPTIONAL CIRCUITRY FOR MAINTAINING
–V
OUT
WITH LOW V
OUT
LOADS
Q1, Q2: 2N3904
*
10µF
V
OUT
= 5V
I
OUT
= 15mA, 2.7V ≤ V
IN
≤ 4.4V
I
OUT
= 50mA, 3.3V ≤ V
IN
≤ 4.4V
V
IN
= 2.7V TO 4.4V
V
OUT
= –1V TO –3.5V
I
OUT
= 5mA
ON OFF
NC
LTC1515 • TA05
+ +
10µF
10µF
470Ω
8.2k
2.4k
+
Q1
Q2