LT3582/LT3582-5/LT3582-12
28
3582512fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2009
LT 0110 REV B • PRINTED IN USA
RELATED PARTS
PART DESCRIPTION COMMENTS
LT1944/LT1944-1(Dual) Dual Output 350mA I
SW
, Constant Off-Time,
High Effi ciency Step-Up DC/DC Converter
V
IN
: 1.2V to 15V, V
OUT(MAX)
= 34V, I
Q
= 20µA, I
SD
<1µA, MS10
LT1945(Dual) Dual Output, Pos/Neg, 350mA I
SW
, Constant Off-Time,
High Effi ciency Step-Up DC/DC Converter
V
IN
: 1.2V to 15V, V
OUT(MAX)
= ±34V, I
Q
= 20µA, I
SD
<1µA, MS10
LT3463/LT3463A Dual Output, Boost/Inverter, 250mA I
SW
, Constant
Off-Time, High Effi ciency Step-Up DC/DC Converter
with Integrated Schottkys
V
IN
: 2.4V to 15V, V
OUT(MAX)
= ±40V, I
Q
= 40µA, I
SD
<1µA, DFN
LT3471 Dual Output, Boost/Inverter, 1.3A I
SW
, 1.2MHz,
High Effi ciency Boost-Inverting DC/DC Converter
V
IN
: 2.4V to 16V, V
OUT(MAX)
= ±40V, I
Q
= 2.5mA, I
SD
<1µA, DFN
LT3472 Dual Output, Boost/Inverter, 0.35A I
SW
, 1.2MHz, High
Effi ciency Boost-Inverting DC/DC Converter
V
IN
: 2.2V to 16V, V
OUT(MAX)
= ±34V, I
Q
= 2.8mA, I
SD
<1µA, DFN
LT3477 42V, 3A, 3.5MHz Boost, Buck-Boost, Buck LED Driver V
IN
: 2.5V to 25V, V
OUT(MAX)
= 40V, I
Q
= Analog/PWM, I
SD
<1µA,
QFN, TSSOP-20E
LT3494/LT3494A 180/350mA (I
SW
), Low Noise High Effi ciency Step-Up
DC/DC Converter
V
IN
: 2.3V to 16V, V
OUT(MAX)
= 40V, I
Q
= 65µA, I
SD
<1µA,
2mm × 3mm DFN
LT3495/LT3495B/
LT3495-1/LT3495B-1
650/350mA (I
SW
), Low Noise High Effi ciency Step-Up
DC/DC Converter
V
IN
: 2.5V to 16V, V
OUT(MAX)
= 40V, I
Q
= 60µA, I
SD
<1µA,
2mm × 3mm DFN
LT1930/LT1930A 1A (I
SW
), 1.2/2.2MHz, High Effi ciency Step-Up
DC/DC Converter
V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V, I
Q
= 4.2/5.5mA, I
SD
<1µA,
ThinSOT™
LT1931/LT1931A 1A (I
SW
), 1.2/2.2MHz, High Effi ciency Inverting DC/DC
Converter
V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V, I
Q
= 4.2/5.5mA, I
SD
<1µA, ThinSOT
LT3467/LT3467A 1.1A (I
SW
), 1.3/2.1MHz, High Effi ciency Step-Up DC/DC
Converter with Soft-Start
V
IN
: 2.4V to 16V, V
OUT(MAX)
= 40V, I
Q
= 1.2mA, I
SD
<1µA, ThinSOT
LT1618 1.5A (I
SW
), 1.4MHz, High Effi ciency Step-Up
DC/DC Converter
V
IN
: 1.6V to 18V, V
OUT(MAX)
= 35V, I
Q
= 1.8mA, I
SD
<1µA, MS10, DFN
LT1946/LT1946A 1.5A (I
SW
), 1.2/2.7MHz, High Effi ciency Step-Up DC/DC
Converter
V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V, I
Q
= 3.2mA, I
SD
<1µA, MS8E
ThinSOT is a trademark of Linear Technology Corporation.
TYPICAL APPLICATION
LT3582
V
IN
SWP
CAPP
V
NEG
–5V
90mA
CAPP
V
PP
SDA
SCL
CA
GND
SWN
SWN
V
OUTN
I
2
C
INTERFACE
V
OUTP
SHDN
INPUT
2.7V TO 4.2V
V
POS
4.6V
100mA
L1
1.5µH
D1
C2
10µF
C6
10nF
C5
10nF
RAMPNRAMPP
C3
10µF
C1
10µF
D2
C4
10µF
L2
1.5µH
REG0/OTP0 = 1Ch
REG1/OTP1 = 4Ch
REG2/OTP2 = 07h
D1-D2: PANASONIC M21D3800L LOW V
F
SCHOTTKY
L1-L2: TDK MLP3216S1R5L
C1-C4: TAIYO YUDEN JMK212BJ106MK, 6.3V, X5R 0805
C5-C6: 0402 X5R
3582512 TA06a
LOAD CURRENT (mA)
0.1
EFFICIENCY (%)
POWER LOSS (mW)
30
40
60
80
350
300
250
200
150
100
50
0
50
70
90
1 10 100
3582512 TA06b
V
IN
= 3.3V
Tiny AMOLED Power Supply is 0.8mm (Max) Thin
Effi ciency and Power Loss, Load from V
OUTP
to V
OUTN
