16
LTC3402
3402fb
LT 0607 REV B • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT
®
1306 Sync, Fixed Frequency, Step-Up DC/DC Converter Internal 2A Switches; V
IN
As Low As 1.8V
LT1308A/LT1308B High Current, Micropower, Single Cell 600kHz DC/DC Converter 5V at 1A with Single Li-Ion Cell, V
OUT
to 34V
LT1613 1.4MHz, Single Cell DC/DC Converter in SOT-23 V
IN
As Low As 1.1V, 3V at 30mA from Single Cell
LT1615 Micropower Step-Up DC/DC Converter in SOT-23 I
Q
= 20μA, 1μA Shutdown Current, V
IN
As Low As 1V
LT1619 High Efficiency Boost DC/DC Controller 1A Gate Drive, 1.1V to 20V Input, Separate V
CC
for Gate Drive
LTC1872 SOT-23 Boost DC/DC Controller 550kHz, 2.5V to 9.8V Input
LT1930/LT1930A 1.2MHz/2.2MHz DC/DC Converters in SOT-23 V
IN
= 2.6V to 16V, 5V at 450mA from 3.3V Input
LT1949 600kHz, 1A Switch PWM DC/DC Converter 1A, 0.5Ω, 30V Internal Switch, V
IN
As Low As 1.5V,
Low-Battery Detect Active in Shutdown
LTC3400 Single Cell, High Current (600mA), Micropower, V
IN
= 0.85V to 5.5V, Up to 92% Efficiency Synchronizable
Synchronous 1.2MHz Step-Up DC/DC Converter Oscillator from 100kHz to 1.2MHz, ThinSOT Package
LTC3401 Single Cell, High Current (1A), Micropower, V
IN
= 0.5V to 5V, Up to 97% Efficiency Synchronizable
Synchronous 3MHz Step-Up DC/DC Converter Oscillator from 100kHz to 3MHz, 10-Lead MSOP Package
LTC3424 Single Cell, High Current (2A), Micropower, V
OUT
= 1.5V, Up to 97% Efficiency Synchronizable
Synchronous 3MHz Step-Up DC/DC Converter Oscillator from 100kHz to 3MHz, 10-Lead MSOP Package
© LINEAR TECHNOLOGY CORPORATION 2000
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
Triple Output Converter
TYPICAL APPLICATIO
U
R1
549k
3402 TA08
R2
909k
C1: TAIYO YUDEN JMK212BJ475MG
C2: TAIYO YUDEN JMK325BJ226MM
D1: ON SEMICONDUCTOR MBRM120T3
D2 TO D7: ZETEX FMND7000 DUAL DIODE
L1: SUMIDA CD43-2R2M
C2
22μF
C3
470pF
C4
4.7pF
C1
4.7μF
4.7μF
D6
D7
0.1μF
–2.5V
1mA
V
OUT
3.3V
500mA
D1
0.1μF
D2 D3
0.1μF 0.1μF 4.7μF
8V
2mA
D4 D5
3
10
2
6
1
LTC3402
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
L1 2.2μH
R3
1M
R
t
30.1k
R5
82k
0 = FIXED FREQ
1 = Burst Mode OPERATION
+
2
CELLS
V
IN
=1.8V TO 3V
