LT1614 Linear Technology, LT1614 Datasheet - Page 8

• Manufacturer Part Number: LT1614
• Description: Inverting 600kHz Switching Regulator
• Manufacturer: Linear Technology

LT1614
RELATED PARTS
PART NUMBER
LTC
LT1307
LT1308
LT1316
LT1317
LTC1474
LT1610
8
TYPICAL
®
1174
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
APPLICATION
DESCRIPTION
High Efficiency Step-Down and Inverting DC/DC Converter
Single Cell Micropower 600kHz PWM DC/DC Converter
Single Cell High Current Micropower 600kHz Boost Converter
Micropower Boost DC/DC Converter
Micropower 600kHz PWM DC/DC Converter
Low Quiescent Current High Efficiency DC/DC Converter
1.7MHz Single Cell Micropower DC/DC Converter
FAX
: [phone]
3.3V
V
IN
U
TELEX
+
C1: AVX1206CY106
D1: MBR0520
L1, L2: MURATA LQH3C220
: 499-3977
22 F
3.3V to – 3.1V/200mA DC/DC Converter
100k
80
70
60
50
40
30
20
1nF
3.3V to – 3.1V Converter Efficiency
3
SHDN
V
V
C
IN
LT1614
22 H
10
GND
L1
LOAD CURRENT (mA)
SW
FB
30
1 F
C1
18.7k
12.7k
100
COMMENTS
Selectable I
3.3V at 75mA from 1 Cell, MSOP Package
5V at 1A from a Single Li-Ion Cell, SO-8 Package
Programmable Peak Current Limit, MSOP Package
2 Cells to 3.3V at 200mA, MSOP Package
I
5V at 200mA from 3.3V, MSOP Package
Q
= 10 A, Programmable Peak Current Limit, MSOP
1614 TA04
D1
22 H
L2
300
PEAK
+
1614 TA03
22 F
= 300mA or 600mA
V
– 3.1V
200mA
OUT
1614i LT/GP 0798 4K • PRINTED IN THE USA
LINEAR TECHNOLOGY CORPORATION 1998