參數(shù)資料
型號(hào): LT3581EMSE#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDSO16
封裝: LEAD FREE, PLASTIC, MSOP-16
文件頁數(shù): 30/36頁
文件大?。?/td> 498K
代理商: LT3581EMSE#PBF
LT3581
3581f
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2010
LT 0310 PRINTED IN USA
relaTeD parTs
PART NUMBER DESCRIPTION
COMMENTS
LT3580
2A (ISW), 2.5MHz, High Efficiency Step-Up DC/DC Converter
VIN = 2.5V to 32V, VOUT(MAX) = 42V, IQ = 1mA, ISD < 1A,
3mm
× 3mm DFN-8, MSOP-8E Packages
LT3471
Dual Output 1.3A (ISW), 1.2MHz, High Efficiency Step-Up DC/DC
Converter
VIN = 2.4V to 16V, VOUT(MAX) = ±40V, IQ = 2.5mA, ISD < 1A,
3mm
× 3mm DFN-10 Package
LT3479
40V, 3A, Full Featured DC/DC Converter with Soft-Start and Inrush
Current Protection
VIN = 2.5V to 24V, VOUT(MAX) = 40V, IQ = Analog/PWM,
ISD < 1A, DFN, TSSOP Packages
LT3477
40V, 3A, Full Featured DC/DC Converter
VIN = 2.5V to 25V, VOUT(MAX) = 40V, IQ = Analog/PWM,
ISD < 1A, QFN, TSSOP-20E Packages
LT1946/LT1946A 1.5A (ISW), 1.2MHz/2.7MHz, High Efficiency Step-Up DC/DC Converter VIN = 2.6V to 16V, VOUT(MAX) = 34V, IQ = 3.2mA, ISD < 1A,
MS8E Package
LT1935
2A (ISW), 40V, 1.2MHz, High Efficiency Step-Up DC/DC Converter
VIN = 2.3V to 16V, VOUT(MAX) = 40V, IQ = 3mA, ISD < 1A,
ThinSOT Package
LT1310
2A (ISW), 40V, 1.2MHz, High Efficiency Step-Up DC/DC Converter
VIN = 2.3V to 16V, VOUT(MAX) = 40V, IQ = 3mA, ISD < 1A,
ThinSOT Package
LT3436
3A (ISW), 800kHz, 34V Step-Up DC/DC Converter
VIN = 3V to 25V, VOUT(MAX) = 34V, IQ = 0.9mA, ISD < 6A,
TSSOP-16E Package
Typical applicaTion
5V to –12V Inverting Converter Switches at 2MHz
VIN
5V
100k
143k
43.2k
C1
3.3F
1nF
3581 TA05a
0.1F
C3
4.7F
11k
VOUT
–12V
625mA
C2
1F
SW1 SW2
FB
CLKOUT
GATE
VC
SS
VIN
RT
GND
SYNC
FAULT
SHDN
LT3581
47pF
C1: 3.3F, 16V, X7R, 1206
C2: 1F, 25V, X7R, 1206
C3: 4.7F, 25V, X7R, 1206
D1: DIODES INC. PD3S230H-7
L1, L2: COILCRAFT MSD7342-332MLB
L2
3.3H
D1
L1
3.3H
Efficiency and Power Loss
50
55
65
70
75
90
60
80
85
LOAD CURRENT (mA)
0
EFFICIENCY
(%)
POWER
LOSS
(mW)
250
3581 TA05b
125
625
500
375
0
200
600
2000
1200
1400
1600
1800
400
800
1000
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