LT3483IDC データシートの表示（PDF） - Linear Technology
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LT3483IDC Datasheet PDF : 12 Pages
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LT3483/LT3483A
TYPICAL APPLICATION
–5V Step-Up/Step-Down Converter
VIN
2.5V TO 6V
C1
4.7µF
L1A
4.7µH
•
SW
VIN
D
LT3483A
SHDN FB
GND
L1B
4.7µH
•
22pF 511k
VOUT
–5V
C2
10µF
C1: TAIYO YUDEN EMK316BJ475ML
C2: TAIYO YUDEN JMK316BJ106ML
L1A, L1B: COILTRONICS SDQ12-4R7 OR
COILCRAFT LPD3015-472
3483 TA03a
Efficiency and Power Loss vs Load Current
70
210
VIN = 3.6V
60
180
50
150
40
120
30
90
20
60
10
30
0
0.1
1
0
10
100
LOAD CURRENT (mA)
3483 TA03b
VOUT
50mV/DIV
AC-COUPLED
VSW
10V/DIV
IL1A
0.5A/DIV
IL1B
0.5A/DIV
Switching Waveforms
2µs/DIV
3483 TA03c
RELATED PARTS
PART NUMBER
LT1617/LT1617-1
LT1931/LT1931A
LT1945
LT3463
LT3464
LT3472
DESCRIPTION
350mA/100mA (ISW) High Efficiency
Micropower Inverting DC/DC Converter
1A (ISW), 1.2MHz/2.2MHz, High Efficiency
Micropower Inverting DC/DC Converter
Dual Output, Boost/Inverter, 350mA (ISW), Constant
Off-Time, High Efficiency Step-Up DC/DC Converter
Dual Output, Boost/Inverter, 250mA (ISW), Constant
Off-Time, High Efficiency Step-Up DC/DC Converter
with Integrated Schottky Diodes
85mA (ISW), High Efficiency Step-Up DC/DC Converter
with Integrated Schottky and PNP Disconnect
Boost (350mA) and Inverting (400mA) DC/DC Converter
for CCD Bias with Integrated Schottkys
COMMENTS
VIN: 1.2V to 15V, VOUT(MAX) = –34V, IQ = 20µA, ISD < 1µA
ThinSOT Package
VIN: 2.6V to 16V, VOUT(MAX) = –34V, IQ = 5.8mA, ISD < 1µA
ThinSOT Package
VIN: 1.2V to 15V, VOUT(MAX) = ±34V, IQ = 40µA, ISD < 1µA,
MS10 Package
VIN: 2.3V to 15V, VOUT(MAX) = ±40V, IQ = 40µA, ISD < 1µA
DFN Package
VIN: 2.3V to 10V, VOUT(MAX) = 34V, IQ = 25µA, ISD < 1µA
ThinSOT Package
VIN: 2.3V to 15V, VOUT(MAX) = ±40V, IQ = 2.8mA, ISD < 1µA
DFN Package
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
3483fc
LT 0910 REV C • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2004
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