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LTC3589IUJ-1#TRPBF

产品描述IC CONV DC/DC 8-OUTPUT 40QFN
产品类别电源/电源管理    电源电路   
文件大小675KB,共50页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
标准
下载文档 详细参数 全文预览

LTC3589IUJ-1#TRPBF概述

IC CONV DC/DC 8-OUTPUT 40QFN

LTC3589IUJ-1#TRPBF规格参数

参数名称属性值
Brand NameLinear Technology
是否Rohs认证符合
厂商名称Linear ( ADI )
零件包装代码QFN
包装说明HVQCCN, LCC40,.24SQ,20
针数40
制造商包装代码UJ
Reach Compliance Codecompliant
ECCN代码EAR99
其他特性ALSO OPERATES IN CURRENT MODE, ALSO OPERATES AT 1.8, 2.5, AND 3.2 V OUTPUT VOLTAGE
模拟集成电路 - 其他类型SWITCHING REGULATOR
控制模式VOLTAGE-MODE
控制技术PULSE WIDTH MODULATION
最大输入电压5.5 V
最小输入电压2.7 V
标称输入电压3.8 V
JESD-30 代码S-PQCC-N40
JESD-609代码e3
长度6 mm
功能数量1
端子数量40
最高工作温度125 °C
最低工作温度-40 °C
标称输出电压1.2 V
封装主体材料PLASTIC/EPOXY
封装代码HVQCCN
封装等效代码LCC40,.24SQ,20
封装形状SQUARE
封装形式CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度)NOT SPECIFIED
电源3/5 V
认证状态Not Qualified
座面最大高度0.8 mm
最大供电电流 (Isup)0.085 mA
表面贴装YES
切换器配置BUCK-BOOST
最大切换频率2600 kHz
技术CMOS
温度等级AUTOMOTIVE
端子面层Matte Tin (Sn)
端子形式NO LEAD
端子节距0.5 mm
端子位置QUAD
处于峰值回流温度下的最长时间NOT SPECIFIED
宽度6 mm

文档预览

下载PDF文档
LTC3589/LTC3589-1/
LTC3589-2
8-Output Regulator with
Sequencing and I
2
C
FeaTures
n
n
n
n
n
n
n
n
n
n
n
n
DescripTion
The
LTC
®
3589
is a complete power management solu-
tion for ARM and ARM-based processors and advanced
portable microprocessor systems. The device contains
three step-down DC/DC converters for core, memory and
SoC rails, a buck-boost regulator for I/O at 1.8V to 5V and
three 250mA LDO regulators for low noise analog sup-
plies. An I
2
C serial port is used to control enables, output
voltage levels, dynamic voltage scaling, operating modes
and status reporting. Differences between the LTC3589,
LTC3589-1, and LTC3589-2 are summarized in Table 1.
Regulator start-up is sequenced by connecting outputs to
enable pins in the desired order or programmed via the
I
2
C port. System power-on, power-off, and reset functions
are controlled by pushbutton interface, pin inputs, or I
2
C
interface.
The LTC3589 supports i.MX53/51, PXA and OMAP pro-
cessors with eight independent rails at appropriate power
levels. Other features include interface signals such as
the VSTB pin that simultaneously toggle up to four rails
between programmed run and standby output voltages.
The device is available in a low profile 40-pin 6mm
×
6mm
exposed pad QFN package.
L,
LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Triple I
2
C Adjustable High Efficiency Step-Down DC/
DC Converters: 1.6A, 1A/1.2A, 1A/1.2A
High Efficiency 1.2A Buck-Boost DC/DC Converter
Triple 250mA LDO Regulators
Pushbutton ON/OFF Control with System Reset
Flexible Pin-Strap Sequencing Operation
I
2
C and Independent Enable Control Pins
Power Good and Reset Outputs
Dynamic Voltage Scaling and Slew Rate Control
Selectable 2.25MHz or 1.12MHz Switching Frequency
Always-Alive 25mA LDO Regulator
8µA Standby Current
40-Pin 6mm
×
6mm
×
0.75mm QFN
Handheld Instruments and Scanners
Portable Industrial Devices
Automotive Infotainment
Medical Devices
High End Consumer Devices
Multirail Systems
Supports Freescale i.MX53/51, Marvell PXA and
Other Application Processors
applicaTions
n
n
n
n
n
n
n
Typical applicaTion
V
IN
2.7V TO 5.5V
0.8V TO V
IN
AT 25mA
VIN
1µH
SW1
22µF
LDO2
1µF
LDO3
1µF
LDO4
I
2
C
ENABLES
PWR_ON
ON
GND
SW4AB
SW4CD
BB_OUT
WAKE
STATUS
3589 TA01a
Start-Up Sequence
LDO1_STBY
0.5V TO V
IN
AT 1.6A
0.5V TO V
IN
AT 1A
0.5V/DIV
WAKE
(1V/DIV)
SW2
LDO3
SW3
LDO2
SW1
500µs/DIV
1.8V TO 5V
4
22µF
3589 TA01b
1µF
SW2
LTC3589
1.5µH
SW3
1.5µH
BB_OUT
0.36V TO V
IN
AT 250mA
1.8V
AT 250mA
2.8V
AT 250mA
22µF
0.5V TO V
IN
AT 1A
22µF
1µF
3
7
2.7µH
3589fh
For more information
www.linear.com/LTC3589
1
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