- 您现在的位置：买卖IC网 > PDF目录14184 > LTC3542ES6#TRPBF (Linear Technology)IC REG BUCK SYNC ADJ TSOT23-6 PDF资料下载
参数资料
| 型号： | LTC3542ES6#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ TSOT23-6 |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 500mA |
| 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： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | TSOT-23-6 |
LTC3542
ELECTRICAL CHARACTERISTICS The ● 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 noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I S
Input DC Supply Current (Note 5)
Active Mode
V FB = 0.5V
500
μA
Sleep Mode
Shutdown
V FB = 0.7V, MODE = 0V
RUN = 0V
26
0.1
35
1
μA
μA
f OSC
Oscillator Frequency
V FB = 0.6V
●
1.8
2.25
2.7
MHz
f SYNC
I LIM
Synchronous Frequency
Peak Switch Current
V FB = 0.6V
V IN = 3V, V FB = 0.5V, Duty Cycle < 35%
1
650
1000
3
MHz
mA
R DS(ON)
I SW(LKG)
V UVLO
V RUN
I RUN
V MODE/SYNC
I MODE/SYNC
P-Channel On Resistance (Note 6)
N-Channel On Resistance (Note 6)
Switch Leakage Current
Undervoltage Lockout Threshold
RUN Threshold
RUN Leakage Current
MODE/SYNC Threshold
MODE/SYNC Leakage Current
I SW = 100mA
I SW = –100mA
V IN = 5V, V RUN = 0V, V SW = 0V or 5V
V IN Rising
V IN Falling
●
●
●
●
1.8
0.3
0.3
0.5
0.35
±0.01
2.0
1.9
±0.01
±0.01
0.65
0.55
±1
2.3
1.5
±1
1.2
±1
Ω
Ω
μA
V
V
V
μA
V
μA
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. No pin should exceed 6V.
Note 2: The LTC3542 is guaranteed to meet performance speci?cations
from 0°C to 85°C. Speci?cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3542I is guaranteed over the full
–40°C to 125°C operating temperature range.
Note 3: Failure to solder the Exposed Pad of the package to the PC board
will result in a thermal resistance much higher than 102°C/W.
Note 4: The converter is tested in a proprietary test mode that connects
the output of the error ampli?er to the SW pin, which is connected to an
external servo loop.
Note 5: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 6: The DFN switch on resistance is guaranteed by correlation to wafer
level measurements.
Note 7: T J is calculated from the ambient temperature T A and power
dissipation P D according to the following formula:
T J = T A + (P D ) ? ( θ JA ).
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C unless otherwise speci?ed.
SW
2V/DIV
V OUT
50mV/DIV
AC COUPLED
I L
100mA/DIV
Burst Mode Operation
SW
2V/DIV
V OUT
50mV/DIV
AC COUPLED
I L
100mA/DIV
Pulse Skip Mode Operation
RUN
2V/DIV
V OUT
1V/DIV
I L
100mA/DIV
Start-Up from Shutdown
V IN = 3.6V 2 μ s/DIV
V OUT = 1.8V
I LOAD = 25mA
FIGURE 3a CIRCUIT
3542 G01
V IN = 3.6V 400ns/DIV
V OUT = 1.8V
I LOAD = 25mA
FIGURE 3a CIRCUIT
3542 G02
V IN = 3.6V 400 μ s/DIV
V OUT = 1.8V
I LOAD = 0A
FIGURE 3a CIRCUIT
3542 G03
3542fa
3
相关PDF资料 |
PDF描述 |
|---|---|
| HM79-50181LFTR13 | INDUCTOR 180UH MEDIUM PWR SMD |
| MLP221M350EA0A | CAP ALUM 220UF 350V 20% RADIAL |
| MLP201M420EA0A | CAP ALUM 200UF 420V 20% RADIAL |
| HM79-50151LFTR13 | INDUCTOR 150UH MEDIUM PWR SMD |
| HM79-50121LFTR13 | INDUCTOR 120UH MEDIUM PWR SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3542IDC#TRMPBF | 功能描述:IC REG BUCK SYNC ADJ 0.5A 6DFN 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:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC3542IDC#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 0.5A 6DFN 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:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC3542IDC-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA, 2.25MHz Synchronous Step-Down DC/DC Converter |
| LTC3542IDC-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA, 2.25MHz Synchronous Step-Down DC/DC Converter |
| LTC3542IS6#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 2.5V to 5.5V 6-Pin TSOT-23 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Cut Tape 500mA, 2.25MHz Synchronous Step-Down DC/DC Convert |
发布紧急采购，3分钟左右您将得到回复。