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参数资料
| 型号： | LTC3458EDE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 1.4A 12DFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2 V ~ 7.5 V |
| 输入电压： | 1.5 V ~ 6 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1.5MHz |
| 电流 - 输出： | 1.4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 12-DFN（4x3） |
LTC3458
TYPICAL APPLICATIO
Dual Lumiled Application with BURST Pin Current Regulation
L1
2-Lumileds in Series
Li-Ion
2.7V to 4.2V
C IN
2.2 μ F
V IN
LTC3458
GND/PGND
SW
V OUT
f OSC = 850kHz
V OUT
6.4V TO 6.8V
100
Z1
90
150mA, 6.4V
ON OFF
SHDN
FB
250mA, 6.6V
80
SYNC
COMP
D1
350mA, 6.8V
R T
I LIM
SS
BURST
0.01 μ F
0.01 μ F
33k
D2
C OUT
2.2 μ F
70
60
NOTE: LUMILED CURRENT REGULATION
243k
124k
R BURST
0.01 μ F
50
~10% OVER V IN RANGE
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
C IN , C OUT : TAIYO YUDEN JMK107BJ225MA
D1, D2: LUXEON EMITTER LUMILED WHITE
R BURST : 35.7k FOR 350mA,
47.5k FOR 250mA,
3458 TA06a
INPUT VOLTAGE (V)
LXHLMW1D (2.9V AT 350mA)
L1: Wurth 12 μ H 774775112
RELATED PARTS
82.5k FOR 150mA
Z1: CENTRAL SEMI 6.8V ZENER DIODE SOT-23 CMPZ5235B
3458 TA06b
PART NUMBER
LT1310
LT1613
LT1615/
LT1615-1
LT1618
LT1944 (Dual)
LT1945 (Dual)
DESCRIPTION
1.5A I SW , 4.5MHz, High Efficiency Step-Up DC/DC Converter
550mA I SW , 1.4MHz, High Efficiency Step-Up DC/DC Converter
300mA/80mA I SW , Constant Off-Time, High Efficiency
Step-Up DC/DC Converter
1.5A I SW , 1.4MHz, High Efficiency Step-Up DC/DC Converter
Dual Output 350mA I SW , Constant Off-Time, High Efficiency
Step-Up DC/DC Converter
Dual Output Pos/Neg 350mA I SW , Constant Off-Time,
High Efficiency Step-Up DC/DC Converter
COMMENTS
V IN : 2.75V to 18V, V OUT(MAX) = 35V, I Q = 12mA, I SD < 1 μ A,
MS10E
V IN : 0.9V to 10V, V OUT(MAX) = 34V, I Q = 3mA, I SD < 1 μ A, ThinSOT
V IN : 1.2V to 15V, V OUT(MAX) = 34V, I Q = 20 μ A, I SD < 1 μ A,
ThinSOT
V IN : 1.6V to 18V, V OUT(MAX) = 35V, I Q = 1.8mA, I SD < 1 μ A, MS10
V IN : 1.2V to 15V, V OUT(MAX) = 34V, I Q = 20 μ A, I SD < 1 μ A, MS10
V IN : 1.2V to 15V, V OUT(MAX) = ± 34V, I Q = 20 μ A, I SD < 1 μ A, MS10
LT1946/LT1946A 1.5A I SW , 1.2MHz/2.7MHZ, High Efficiency Step-Up
DC/DC Converter
V IN : 2.45V to 16V, V OUT(MAX) = 34V, I Q = 3.2mA, I SD < 1 μ A, MS8
LT1949/
LT1949-1
LT1961
LTC3400/
LTC3400B
LTC3401
LTC3402
LTC3425
LTC3429
550mA I SW , 600kHz/1.1MHz, High Efficiency Step-Up
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
5A I SW , 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter
QFN32
600mA, 500kHz, Synchronous Step-Up DC/DC Converter
with Output Disconnect and Soft-Start
V IN : 1.5V to 12V, V OUT(MAX) = 28V, I Q = 4.5mA, I SD < 25 μ A, SO-8,
MS8
V IN : 3V to 25V, V OUT(MAX) = 35V, I Q = 0.9mA, I SD < 6 μ A, MS8E
V IN : 0.5V to 5V, V OUT(MAX) = 5V, I Q = 19 μ A/300 μ A I SD < 1 μ A,
ThinSOT
V IN : 0.5V to 5V, V OUT(MAX) = 6V, I Q = 38 μ A I SD < 1 μ A, MS10
V IN : 0.5V to 5V, V OUT(MAX) = 6V, I Q = 38 μ A I SD < 1 μ A, MS10
V IN : 0.5V to 4.5V, V OUT(MAX) = 5.25V, I Q = 12 μ A, I SD < 1 μ A,
V IN : 0.5V to 5V, V OUT(MAX) = 5V, I Q = 20 μ A/300 μ A I SD < 1 μ A,
ThinSOT
LTC3459
70mA I SW , 10V Micropower Synchronous Boost/Output Disconnect V IN : 1.5V to 5.5V, V OUT(MAX) = 10V, I Q = 10 μ A, ThinSOT
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
LT3460
LT3464
16
320mA I SW , 1.3MHz, High Efficiency Step-Up DC/DC Converter
85mA I SW , Constant Off-Time, High Efficiency Step-Up DC/DC
Converter with Integrated Schottky/Output Disconnect
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
V IN : 2.5V to 16V, V OUT(MAX) = 36V, I Q = 2mA, I SD < 1 μ A, SC70,
ThinSOT
V IN : 2.3V to 10V, V OUT(MAX) = 34V, I Q = 25 μ A, I SD < 1 μ A,
ThinSOT
3458fa
LT0807 REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2004
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3458L | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect |
| LTC3458LEDE | 功能描述:IC REG BOOST SYNC ADJ 1.4A 12DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3458LEDE#PBF | 功能描述:IC REG BOOST SYNC ADJ 1.4A 12DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3458LEDE#TRPBF | 功能描述:IC REG BOOST SYNC ADJ 1.4A 12DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3459 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2MHz Step-Up DC/DC Converter in SOT-23 |
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