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| 型号： | LT8582IDKD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/36页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ 3A 24DFN |
| 标准包装： | 52 |
| 类型： | 升压（升压），反相，回扫，Sepic |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 最高 42V |
| 输入电压： | 2.5 V ~ 22 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 2.5MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 24-DFN（7x4） |
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LT8582
Dual 3A Boost/Inverting/SEPIC
DC/DC Converter with
Fault Protection
FEATURES
DESCRIPTION
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Dual 42V, 3A Combined Power Switch
Master/Slave (1.7A/1.3A) Switch Design
Wide Input Range: 2.5V to 22V Operating, 40V
Maximum Transient
Power Good Pin for Event Based Sequencing
Switching Frequency Up to 2.5MHz
Each Channel Easily Configurable as a Boost, SEPIC,
Inverting or Flyback Converter
Low V CESAT Switch: 270mV at 2.75A (Typical)
Can be Synchronized to an External Clock
Output Short-Circuit Protection
High Gain SHDN Pin Accepts Slowly Varying Input
Signals
24-Pin 7mm × 4mm DFN Package
The LT ? 8582 is a dual independent channel PWM DC/DC
converter with a power good pin and built-in fault protection
to help guard against input overvoltage and overtempera-
ture conditions. Each channel consists of a 42V master
switch and a 42V slave switch that can be tied together
for a total current limit of 3A.
The LT8582 is ideal for many local power supply designs.
Each channel can be easily configured in boost, SEPIC,
inverting, or flyback configurations. Together, the two chan-
nels can produce a 12V and a –12V output with 14.4W of
combined output power from a 5V input. In addition, the
LT8582’s slave switch allows the part to be configured in
high voltage, high power charge pump topologies that
are more efficient and require fewer components than
APPLICATIONS
traditional circuits.
The LT8582 also features innovative SHDN pin circuitry that
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Local Power Supply
Vacuum Fluorescent Display (VFD) Bias Supplies
TFT-LCD Bias Supplies
Automotive Engine Control Unit (ECU) Power
allows for slowly varying input signals and an adjustable
undervoltage lockout function. Additional features such as
output short protection, frequency foldback and soft-start
are integrated. The LT8582 is available in a 24-pin 7mm
× 4mm DFN package.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners. Protected by U.S. Patents including 7579816.
TYPICAL APPLICATION
1.5MHz, 5V to ±12V
Efficiency and Power Loss
(Load Between 12V and –12V Outputs)
V IN
5V
4.7μF
4.7μH
10μF
V OUT1
12V
550mA
100
3.2
V IN1
SWA1
SWB1
FBX1
130k
6.04k
90
2.8
215k
SHDN1
GATE1
80
2.4
100k
PG1
SYNC1
LT8582
V C1
SS1
6.49k
10μF
70
60
2.0
1.6
CLKOUT1
RT1
50
1.2
CLKOUT2
53.6k
0.1μF
4.7nF
47pF
40
0.8
GND
100k
215k
SYNC2
PG2
SHDN2
RT2
SS2
53.6k
0.1μF
2.2nF
14.7k
47pF
30
20
0
0.1
0.2 0.3 0.4
LOAD CURRENT (A)
0.5
0.4
0
0.6
V IN2
V C2
GATE2
143k
10μF
8582 TA01b
4.7μH
SWA2
SWB2
FBX2
2.2μF
4.7μH
V OUT2
–12V
4.7μF
8582 TA01a
550mA
8582f
1
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相关代理商/技术参数 |
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| LT8584IFE#PBF | 制造商:Linear Technology 功能描述:IC BATT CELL BALANCE 16TSSOP 制造商:Linear Technology 功能描述:BATTERY BALANCER, 2.5V-5.3V, TSSOP-16, Supply Voltage Min:2.5V, Supply Voltage M |
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| LT8610AEMSE#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SYNC ADJ 2.5A 16MSOP 制造商:Linear Technology 功能描述:SWITCHING REG, BUCK, ADJ, 2.2MHZ, MSOP16, Primary Input Voltage:42V, No. of Outp |
| LT8610AHMSE#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SYNC ADJ 2.5A 16MSOP 制造商:Linear Technology 功能描述:SWITCHING REG, BUCK, ADJ, 2.2MHZ, MSOP16 制造商:Linear Technology 功能描述:SWITCHING REG, BUCK, ADJ, 2.2MHZ, MSOP16, Primary Input Voltage:42V, No. of Outp |
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