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| 型号： | LTC3407EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1A DL 10DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.6 V ~ 5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1.5MHz |
| 电流 - 输出： | 1A |
| 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： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
LTC3407
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.6V, unless otherwise speci?ed. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I S
Input DC Supply Current
Active Mode
Sleep Mode
Shutdown
V FB1 = V FB2 = 0.5V
V FB1 = V FB2 = 0.63V, MODE/SYNC = 3.6V
RUN = 0V, V IN = 5.5V, MODE/SYNC = 0V
600
40
0.1
800
60
1
μA
μA
μA
f OSC
Oscillator Frequency
V FBX = 0.6V
●
1.2
1.5
1.8
MHz
f SYNC
Synchronization Frequency
1.5
MHz
I LIM
R DS(ON)
I SW(LKG)
POR
Peak Switch Current Limit
Top Switch On-Resistance
Bottom Switch On-Resistance
Switch Leakage Current
Power-On Reset Threshold
V IN = 3V, V FB = 0.5V, Duty Cycle <35%
(Note 6)
(Note 6)
V IN = 5V, V RUN = 0V, V FBX = 0V
V FBX Ramping Up, MODE/SYNC = 0V
0.75
1
0.35
0.30
0.01
8.5
1.25
0.45
0.45
1
A
Ω
Ω
μA
%
V FBX Ramping Down, MODE/SYNC = 0V
–8.5
%
Power-On Reset On-Resistance
Power-On Reset Delay
100
262,144
200
Ω
Cycles
V RUN
I RUN
V MODE
RUN Threshold
RUN Leakage Current
Mode Threshold Low
●
●
0.3
0
1
0.01
1.5
1
0.5
V
μA
V
Mode Threshold High
V IN – 0.5
V IN
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3407E is guaranteed to meet speci?ed performance
from 0°C to 70°C. Speci?cations over the – 40°C and 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: The LTC3407 is tested in a proprietary test mode that connects V FB
to the output of the error ampli?er.
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: T J is calculated from the ambient T A and power dissipation P D
according to the following formula: T J = T A + (P D ? θ JA ).
Note 6: The DFN switch on-resistance is guaranteed by correlation to
wafer level measurements.
TYPICAL PERFORMANCE CHARACTERISTICS
SW
5V/DIV
V OUT
100mV/DIV
I L
200mA/DIV
Burst Mode Operation
SW
5V/DIV
V OUT
10mV/DIV
I L
200mA/DIV
Pulse-Skipping Mode
V OUT
200mV/DIV
I L
500mA/DIV
I LOAD
500mA/DIV
Load Step
V IN = 3.6V 4 μ s/DIV
V OUT = 1.8V
I LOAD = 50mA
CIRCUIT OF FIGURE 1
3407 G01
V IN = 3.6V 1 μ s/DIV
V OUT = 1.8V
I LOAD = 50mA
CIRCUIT OF FIGURE 1
3407 G02
V IN = 3.6V 20 μ s/DIV
V OUT = 1.8V
I LOAD = 50mA TO 600mA
CIRCUIT OF FIGURE 1
3407 G03
3407fa
3
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| LTC3407EMSE | 功能描述:IC REG BUCK SYNC ADJ 1A 10MSOP 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 |
| LTC3407EMSE#PBF | 功能描述:IC REG BUCK SYNC ADJ 1A 10MSOP 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 |
| LTC3407EMSE#TR | 功能描述:IC REG BUCK SYNC ADJ 1A 10MSOP 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 |
| LTC3407EMSE#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 1A 10MSOP 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 |
| LTC3407EMSE-2 | 制造商:Linear Technology 功能描述:Conv DC-DC Dual Step Down 2.5V to 5.5V 10-Pin MSOP EP |
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