参数资料
型号: LTC3440EDD#TRPBF
厂商: Linear Technology
文件页数: 20/20页
文件大小: 0K
描述: IC REG BUCK BOOST SYNC ADJ 10DFN
标准包装: 2,500
类型: 降压(降压),升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.5 V ~ 5.5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: Burst Mode?
频率 - 开关: 2MHz
电流 - 输出: 600mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 10-DFN(3x3)
LTC3440
TYPICAL APPLICATIO
Li-Ion to 3.3V at 600mA Buck-Boost Converter
L1
Efficiency
10 μ H
V OUT
3.3V
100
15k
V IN = 2.8V TO 4.2V
+
Li-Ion
C1 *
10 μ F
3
7
8
2
1
R T
SW1 SW2
LTC3440
V IN V OUT
SHDN/SS FB
MODE/SYNC V C
R T GND
4
6
9
C5 300pF
10
R3
5
R1
340k
R2
200k
220pF
2.2k
600mA
C2
22 μ F
90
80
70
60
50
40
30
20
Burst Mode
OPERATION
V IN = 4.2V
V IN = 3.3V
60.4k
10
*1 = Burst Mode OPERATION
0 = FIXED FREQUENCY
C1: TAIYO YUDEN JMK212BJ106MG
C2: TAIYO YUDEN JMK325BJ226MM
3440 TA01
0
0.1
1.0
10 100
1000
L1: SUMIDA CDRH4D28-100
OUTPUT CURRENT (mA)
3440 TA05
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PART NUMBER
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LTC3441/LTC3443
DESCRIPTION
550mA(I SW ), 1.4MHz, High Efficiency Step-Up
DC/DC Converter
1.5A(I SW ), 1.25MHz, High Efficiency Step-Up
DC/DC Converter
600mA(I OUT ), 550kHz, Synchronous Step-Down
DC/DC Converter
600mA(I OUT ), 550kHz, Synchronous Step-Down
DC/DC Converter
1.2A(I OUT ), 550kHz, Synchronous Step-Down
DC/DC Converter
1.5A(I SW ), 1.25MHz, High Efficiency Step-Up
DC/DC Converter
600mA(I SW ), 1.2MHz, Synchronous Step-Up
DC/DC Converter
1A(I SW ), 3MHz, Synchronous Step-Up
DC/DC Converter
2A(I SW ), 3MHz, Synchronous Step-Up
DC/DC Converter
300mA(I OUT ), 1.5MHz, Synchronous Step-Down
DC/DC Converter
600mA(I OUT ), 1.5MHz, Synchronous Step-Down
DC/DC Converter
1.25A(I OUT ), 4MHz, Synchronous Step-Down
DC/DC Converter
2.5A(I OUT ), 4MHz, Synchronous Step-Down
DC/DC Converter
1.2A(I OUT ), 1MHz/0.6MHz, Micropower Synchronous
Buck-Boost DC/DC Converter
COMMENTS
90% Efficiency, V IN : 0.9V to 10V, V OUT(MIN) = 34V, I Q = 3mA,
I SD = <1 μ A, ThinSOT TM Package
90% Efficiency, V IN : 1.6V to 18V, V OUT(MIN) = 35V, I Q = 1.8mA,
I SD = <1 μ A, MS10 Package
95% Efficiency, V IN : 2.7V to 10V, V OUT(MIN) = 0.8V, I Q = 10 μ A,
I SD = <1 μ A, MS8 Package
95% Efficiency, V IN : 2.7V to 6V, V OUT(MIN) = 0.8V, I Q = 10 μ A,
I SD = <1 μ A, MS8 Package
95% Efficiency, V IN : 2.7V to 10V, V OUT(MIN) = 0.8V, I Q = 15 μ A,
I SD = <1 μ A, TSSOP16 Package
90% Efficiency, V IN : 3V to 25V, V OUT(MIN) = 35V, I Q = 0.9mA,
I SD = 6 μ A, MS8E Package
92% Efficiency, V IN : 0.85V to 5V, V OUT(MIN) = 5V, I Q = 19 μ A/300 μ A,
I SD = <1 μ A, ThinSOT Package
97% Efficiency, V IN : 0.5V to 5V, V OUT(MIN) = 6V, I Q = 38 μ A,
I SD = <1 μ A, MS10 Package
97% Efficiency, V IN : 0.5V to 5V, V OUT(MIN) = 6V, I Q = 38 μ A,
I SD = <1 μ A, MS10 Package
95% Efficiency, V IN : 2.7V to 6V, V OUT(MIN) = 0.8V, I Q = 20 μ A,
I SD = <1 μ A, ThinSOT Package
95% Efficiency, V IN : 2.5V to 5.5V, V OUT(MIN) = 0.6V, I Q = 20 μ A,
I SD = <1 μ A, ThinSOT Package
95% Efficiency, V IN : 2.5V to 5.5V, V OUT(MIN) = 0.8V, I Q = 60 μ A,
I SD = <1 μ A, MS10 Package
95% Efficiency, V IN : 2.5V to 5.5V, V OUT(MIN) = 0.8V, I Q = 60 μ A,
I SD = <1 μ A, TSSOP16E Package
95% Efficiency, V IN : 2.4V to 5.5V, V OUT(MIN) : 2.4V to 5.25V,
I Q = 25 μ A, I SD = <1 μ A, DFN Package
ThinSOT is a trademark of Linear Technology Corporation.
3440fb
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LT 0507 REV B ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2001
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LTC3440EMSPBF 制造商:Linear Technology 功能描述:LTC3440 adj 600mA SU/SD dc-dc converter