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LTC3417AEFE-2#TRPBF

产品描述IC REG BUCK ADJ DL SYNC 20TSSOP
产品类别电源/电源管理    电源电路   
文件大小332KB,共20页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
标准
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LTC3417AEFE-2#TRPBF概述

IC REG BUCK ADJ DL SYNC 20TSSOP

LTC3417AEFE-2#TRPBF规格参数

参数名称属性值
Brand NameLinear Technology
是否Rohs认证符合
零件包装代码TSSOP
包装说明HTSSOP, TSSOP20,.25
针数20
制造商包装代码FE
Reach Compliance Codecompliant
ECCN代码EAR99
模拟集成电路 - 其他类型DUAL SWITCHING CONTROLLER
控制模式CURRENT-MODE
最大输入电压5.5 V
最小输入电压2.25 V
标称输入电压3.6 V
JESD-30 代码R-PDSO-G20
JESD-609代码e3
长度6.5 mm
湿度敏感等级1
功能数量1
端子数量20
最高工作温度85 °C
最低工作温度
封装主体材料PLASTIC/EPOXY
封装代码HTSSOP
封装等效代码TSSOP20,.25
封装形状RECTANGULAR
封装形式SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度)250
认证状态Not Qualified
座面最大高度1.2 mm
表面贴装YES
切换器配置PUSH-PULL
最大切换频率4000 kHz
技术CMOS
温度等级OTHER
端子面层Matte Tin (Sn)
端子形式GULL WING
端子节距0.65 mm
端子位置DUAL
处于峰值回流温度下的最长时间NOT SPECIFIED
宽度4.4 mm
Base Number Matches1

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LTC3417A-2
Dual Synchronous
1.5A/1A 4MHz
Step-Down DC/DC Regulator
DESCRIPTION
The LTC
®
3417A-2 is a dual constant frequency, synchro-
nous step-down DC/DC converter. Intended for medium
power applications, it operates from a 2.25V to 5.5V input
voltage range and has a constant programmable switching
frequency, allowing the use of tiny, low cost capacitors
and inductors 2mm or less in height. Each output voltage
is adjustable from 0.8V to 5V. Internal synchronous, low
R
DS(ON)
power switches provide high efficiency without
the need for external Schottky diodes.
A user selectable mode input allows the user to trade
off ripple voltage for light load efficiency. Burst Mode
operation provides high efficiency at light loads, while
Pulse Skip mode provides low ripple noise at light loads.
A phase mode pin allows the second channel to operate
in-phase or 180° out-of-phase with respect to channel 1.
Out-of-phase operation produces lower RMS current on
V
IN
and thus lower stress on the input capacitor.
To further maximize battery life, the P-channel MOSFETs
are turned on continuously in dropout (100% duty cycle)
and both channels draw a total quiescent current of only
100μA. In shutdown, the device draws <1μA.
L,
LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents
including 5481178, 6580258, 6304066, 6127815, 6498466, 6611131, 6144194.
FEATURES
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
High Efficiency: Up to 95%
1.5A/1A Guaranteed Minimum Output Current
Synchronizable to External Clock
No Schottky Diodes Required
Programmable Frequency Operation: 1.5MHz or
Adjustable From 0.6MHz to 4MHz
Low Ripple (<35mV
P-P
) BurstMode
®
Operation
I
Q
: 125μA in Sleep
Low R
DS(ON)
Internal Switches
Short-Circuit Protected
V
IN
: 2.25V to 5.5V
Current Mode Operation for Excellent Line and Load
Transient Response
Ultralow Shutdown Current: I
Q
< 1μA
Low Dropout Operation: 100% Duty Cycle
Power Good Ouput
Phase Pin Selects 2nd Channel Phase Relationship
with Respect to 1st Channel
Internal Soft-Start with Individual Run Pin Control
Available in Small Thermally Enhanced
(5mm × 3mm) DFN and 20-Lead TSSOP Packages
APPLICATIONS
n
n
n
n
n
GPS/Navigation Systems
Automotive Instrumentation
PC Cards
Industrial Power Supplies
General Purpose Point of Load DC/DC
TYPICAL APPLICATION
V
IN
2.5V TO 5.5V
10μF
V
OUT1
1.8V
1.5A
1.5μH
22pF
V
IN
511k
V
FB1
47μF
412k
I
TH1
5.9k
2200pF
GND
I
TH2
2.87k
6800pF
3417A-2 TA01
V
OUT2
Efficiency
(Burst Mode Operation)
100
REFER TO FIGURE 4
EFFICIENCY
10
95
EFFICIENCY (%)
2.2μH
V
OUT2
2.5V
1A
90
0.1
85
0.01
80
75
70
0.001
POWER LOSS
V
IN
= 3.6V
V
OUT
= 2.5V
FREQ = 1MHz
0.01
0.1
LOAD CURRENT (A)
1
3417A-2 TA01a
V
IN
FREQ
SW1
RUN1
SW2
RUN2
V
IN
866k
412k
22μF
1
POWER LOSS (W)
22pF
LTC3417A-2
V
FB2
0.001
0.0001
3417a2fa
1

LTC3417AEFE-2#TRPBF相似产品对比

LTC3417AEFE-2#TRPBF LTC3417AEDHC-2#PBF LTC3417AEDHC-2#TRPBF LTC3417AEFE-2#PBF LTC3417AIDHC-2#PBF LTC3417AIFE-2#TRPBF LTC3417AIDHC-2#TRPBF LTC3417AIFE-2#PBF
描述 IC REG BUCK ADJ DL SYNC 20TSSOP IC reg buck sync adj DL 16dfn IC REG BUCK ADJ 1A/1.5A DL 16DFN IC REG BUCK ADJ DL SYNC 20TSSOP IC REG BUCK ADJ 1A/1.5A DL 16DFN IC REG BUCK ADJ DL SYNC 20TSSOP IC REG BUCK ADJ 1A/1.5A DL 16DFN 可输出电流:1A, 1.5A 开关工作频率:1.5MHz, 600kHz ~ 4MHz 输出类型:Adjustable 输出电压的路数:2 功能类型:Step-Down 输出配置:Positive
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology
是否Rohs认证 符合 符合 符合 符合 符合 符合 符合 符合
零件包装代码 TSSOP DFN DFN TSSOP DFN TSSOP DFN TSSOP
包装说明 HTSSOP, TSSOP20,.25 HVSON, SOLCC16,.12,20 HVSON, SOLCC16,.12,20 HTSSOP, TSSOP20,.25 HVSON, SOLCC16,.12,20 HTSSOP, TSSOP20,.25 HVSON, SOLCC16,.12,20 HTSSOP, TSSOP20,.25
针数 20 16 16 20 16 20 16 20
制造商包装代码 FE DHC DHC FE DHC FE DHC FE
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant compliant
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
模拟集成电路 - 其他类型 DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER
控制模式 CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
最大输入电压 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
最小输入电压 2.25 V 2.25 V 2.25 V 2.25 V 2.25 V 2.25 V 2.25 V 2.25 V
标称输入电压 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
JESD-30 代码 R-PDSO-G20 R-PDSO-N16 R-PDSO-N16 R-PDSO-G20 R-PDSO-N16 R-PDSO-G20 R-PDSO-N16 R-PDSO-G20
JESD-609代码 e3 e3 e3 e3 e3 e3 e3 e3
长度 6.5 mm 5 mm 5 mm 6.5 mm 5 mm 6.5 mm 5 mm 6.5 mm
湿度敏感等级 1 1 1 1 1 1 1 1
功能数量 1 1 1 1 1 1 1 1
端子数量 20 16 16 20 16 20 16 20
最高工作温度 85 °C 85 °C 85 °C 85 °C 125 °C 125 °C 125 °C 125 °C
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 HTSSOP HVSON HVSON HTSSOP HVSON HTSSOP HVSON HTSSOP
封装等效代码 TSSOP20,.25 SOLCC16,.12,20 SOLCC16,.12,20 TSSOP20,.25 SOLCC16,.12,20 TSSOP20,.25 SOLCC16,.12,20 TSSOP20,.25
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度) 250 250 250 250 250 260 250 250
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
座面最大高度 1.2 mm 0.8 mm 0.8 mm 1.2 mm 0.8 mm 1.2 mm 0.8 mm 1.2 mm
表面贴装 YES YES YES YES YES YES YES YES
切换器配置 PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL PUSH-PULL
最大切换频率 4000 kHz 4000 kHz 4000 kHz 4000 kHz 4000 kHz 4000 kHz 4000 kHz 4000 kHz
技术 CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
温度等级 OTHER OTHER OTHER OTHER AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
端子面层 Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
端子形式 GULL WING NO LEAD NO LEAD GULL WING NO LEAD GULL WING NO LEAD GULL WING
端子节距 0.65 mm 0.5 mm 0.5 mm 0.65 mm 0.5 mm 0.65 mm 0.5 mm 0.65 mm
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED 30 NOT SPECIFIED NOT SPECIFIED
宽度 4.4 mm 3 mm 3 mm 4.4 mm 3 mm 4.4 mm 3 mm 4.4 mm
Base Number Matches 1 1 1 1 1 1 - 1

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